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Earth of fire

Actualité volcanique, Articles de fond sur étude de volcan, tectonique, récits et photos de voyage

Articles avec #volcanic activity catégorie

Publié le par Bernard Duyck
Publié dans : #volcanic activity
 Raung - 23.01.2021 / 17:21 WIB - webcam PVMBG Magma Indonesia

 Raung - 23.01.2021 / 17:21 WIB - webcam PVMBG Magma Indonesia

Raung - seismicity at 23.01.2021 - Doc. Magma Indonrsia

Raung - seismicity at 23.01.2021 - Doc. Magma Indonrsia

Since January 21, 2021, the activity level of G. Raung has been raised to level II (Waspada).

The main plume was observed to be gray with a height of about 200-600 meters above the peak.

The seismographic records of January 23, 2021 are characterized by:

• 27 blast / emission earthquakes

• 295 non-harmonic tremor episodes

• 2 distant tectonic earthquakes

People / visitors / tourists should not carry out activities within a radius of 2 km from the summit crater.

The last VONA sent with the color code ORANGE, published on January 23, 2021 at 4:20:00 PM WIB. The eruption is reported by an observer on the ground.

Andi Volcano at Raung

 

Sources: PVMBG, Magma Indonesia & VAAC Darwin


to see: Eruption Type of Raung Volcano, East Java - Indonesia - video Andi Volcano -

https: // youtube / ySRulDL6Suo

At Stromboli, the INGV notes a slow decrease in effusive activity fueled by the lava overflow in the area of ​​the north crater. At the moment, the casting is no longer supplied and is being cooled.

Also in the area of ​​the North crater, a spattering activity is observed. There are also no particular variations in the explosive strombolian activity of the north and central south crater areas.

On the morning of January 23, 2021, the amplitude of the tremor slowly decreases.

The amplitude of explosive events remains low and the frequency is also similar to the previous period, with an event every 5-10 minutes.

Stromboli returned to its normal activity patrameters on January 23 at 4:24 p.m. UTC.

 

Source: INGV OE

The erupting Stromboli seen aboard an Italian Air Force helicopter - video via Salvatore Sarpi 23.01.2021

In Kilauea, lava activity is confined to Halemaʻumaʻu with lava erupting from a vent on the northwest side of the crater.

Low-level fountaining from the west vent feeds a lava channel that drains into the lava lake in Halema'uma'u Crater.

The active western half of the lava lake was around 205m deep as of January 23, while the stagnant eastern half of the lake remains several meters below. The entire lava lake - including half that is stagnant - is perched / elevated at least 1-2m above the crust between the perched lake and the crater wall.

All of the islands have remained stationary for the past week, frozen in the stagnant eastern part of the lava lake. The dimensions of the main island have remained unchanged with its edges several meters above the surface of the lake.

The most recent measurements of sulfur dioxide emission rates from January 16 are around 2,500 t / d, lower than the pre-2018 lava lake emission rates (3,000 to 6,500 t / day). The summit inclinometers are on an inflationary trend. Seismicity remains high but stable, with high and regular earthquakes and a few minor earthquakes.

 

Source: HVO-USGS / 23,01,2021 / 17:56 UTC

Kilauea - Halema'uma'u West vent - photo Bruce Omori / Extreme exposire / Paradise helicopters 17.01.2021

Kilauea - Halema'uma'u West vent - photo Bruce Omori / Extreme exposire / Paradise helicopters 17.01.2021

The Mayon volcano monitoring network recorded twenty-seven (27) volcanic earthquakes from 01.22 to 01.23 / 8 a.m. Moderate emission of steam-laden white plumes were observed that crept up the slope before drifting northeast.

The Mayon volcano monitoring network recorded seven (7) volcanic earthquakes during the 24 hour observation period, from 23.01 to 24.01 / 8am.

Sulfur dioxide emissions were last measured at an average of 676 tonnes / day on December 29, 2020.

Soil deformation data from the Precise Leveling surveys from November 28 to December 3, 2020 indicated a slight deflation of the building compared to October 2020. Electronic tilt data also showed short-term deflation of mean slopes since July 2020 after a period of irregular inflation from the end of 2019 to mid-2020. However, continuous GPS has recorded long-term inflation of lower to average slopes since July 2019. Overall, the Mayon Building is still inflated from baseline settings.

 

DOST-PHIVOLCS wishes to remind the public that the Mayon volcano is on alert level 1, which means it is in an abnormal state. While this means that currently no magmatic eruption is imminent, the public is strongly advised to refrain from entering the 6 kilometer radius Permanent Danger Zone (PDZ) due to the perpetual dangers threatening the life of rockfall, landslides / avalanches in the middle of upper slope, flashes of ash and steam or phreatic eruptions from the summit. Active stream / river channels and those identified as perpetually lahar-prone areas over all sectors of the volcano should also be avoided, especially in extreme weather conditions with heavy and prolonged rains.

 

Source: DOST-PHIVOLCS

Mayon - steam plume - photo archives © Thierry SLUYS / 02.2018

Mayon - steam plume - photo archives © Thierry SLUYS / 02.2018

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Publié le par Bernard Duyck
Publié dans : #volcanic activity
 Stromboli - lava flow in the Sciarra del Fuoco - Doc. Stromboli's pictures

Stromboli - lava flow in the Sciarra del Fuoco - Doc. Stromboli's pictures

The National Institute of Geophysics and Vulcanology, Etnéo Observatory, communicates that from 11:45 hours GMT on January 22, 2021, on the images of the surveillance cameras of the INGV-OE show a lava overflow of the crater zone North of Stromboli. The heat flow is measured at VRP 24 MW.

Stromboli - lava overflow and flow in Sciarra del fuoco on 01.22.2021 - INGV webcam images
Stromboli - lava overflow and flow in Sciarra del fuoco on 01.22.2021 - INGV webcam images

Stromboli - lava overflow and flow in Sciarra del fuoco on 01.22.2021 - INGV webcam images

Stromboli - thermal anomalies at 01.22.2021 / 12.35 p.m. - Doc. Mirova_MODIS_VRP

Stromboli - thermal anomalies at 01.22.2021 / 12.35 p.m. - Doc. Mirova_MODIS_VRP

The INGV informs at 16:14 UTC that the lava flow produced by the overflow formed at the North crater area continues to be well fed, and the front is located at about 600 m. The incandescent blocks that stand out from the front roll along the Sciarra del Fuoco, reaching the coast line. In addition, there is ordinary Strombolian activity from both North and South crater areas.

Regarding the size of the tremor at the STRA station, no significant variation appears and is maintained at medium and low values. The number and amplitude of the earthquakes of explosions show low values.

The deformation data do not show significant variations.

 

Source: INGV OE

Stromboli - activity from 01.22.2021 around 4:51 p.m. - 4:59 p.m. - INGV webcam
Stromboli - activity from 01.22.2021 around 4:51 p.m. - 4:59 p.m. - INGV webcam

Stromboli - activity from 01.22.2021 around 4:51 p.m. - 4:59 p.m. - INGV webcam

A weak Strombolian activity continues at the eastern vent of the south-eastern crater of Etna; it is intermittent at the saddle vent on the evening of January 22, 2021.

 

Source: Boris Behncke

Etna SEC - evening activity from 01.22.2021 - photo Boris Behncke

Etna SEC - evening activity from 01.22.2021 - photo Boris Behncke

During the last hours, the Pacaya exhibits moderate to stronger explosions, accompanied by ash plumes scattering towards the northwest; The noise of locomotives and shock waves vibrate the surrounding windows and roofs.

This phase of Strombolian activity could last in terms of hours or days.

The lava flow is over a kilometer in length.

 

Source: Insivumeh

Pacaya - Strombolian activity in progress on 22.01.2021 - photo Insivumeh

Pacaya - Strombolian activity in progress on 22.01.2021 - photo Insivumeh

Pacaya - thermal anomalies at 23.01.2021 / 4:30 am - Doc. Mirova_MODIS_Latest10NTI

Pacaya - thermal anomalies at 23.01.2021 / 4:30 am - Doc. Mirova_MODIS_Latest10NTI

In Chile, 3 volcanoes remain on Amarilla technical alert.

Nevados de Chillán : it continues its eruptive cycle that began in 2016. In recent days it has featured minor explosions, with a slowly advancing lava flow and a growing lava dome inside the crater.

Villarrica : its activity consists of explosions at the level of the crater which, on certain occasions, emit pyroclastic rocks which could strike within a radius of 1000 meters around the crater, without prior warning.

Hudson : The technical alert has been raised to yellow due to the increase in Volcano-Tectonic (VT) seismicity associated with rock failure in the volcanic system. For the moment, SERNAGEOMIN continues to monitor this activity.

 

Source: Sernageomin & Volcanologia Chile

Chile - the 3 volcanoes on alert Amarilla - Doc. Sernageomin & Volcanologia Chile

Chile - the 3 volcanoes on alert Amarilla - Doc. Sernageomin & Volcanologia Chile

Between December 24, 2020 and January 19, 2021, the National Seismic Service (SSN) recorded a total of 22 earthquakes within a radius of 35 kilometers from the "Chichonal" volcano, with magnitudes between 3.4 and 4.1, and depths varying between 3 and 83 kilometers.

The "Chichonal", commonly known as "El Chichón", west of the Sierra Madre de Chiapas.

El Chichón - photo G.V.P.

El Chichón - photo G.V.P.

A group of specialists, scientists, academics and civil protection professionals agreed to reinstall a geodetic network with global positioning instruments, the capture of thermographic images, as well as the obtaining of photogrammetric data using drones.

This type of action aims to better detect, confirm and / or exclude any change in the seismic activity of this region of the country or of the volcano itself.

In addition to identifying the most likely scenarios and, moreover, facilitating the civil protection authorities and the Mexican government, taking measures to protect the communities surrounding this area of the country.

 

Source: SOBRE LA ACTIVIDAD EN LA REGIÓN DEL VOLCÁN CHICHONAL, CHIAPAS / Vulcanologia UNAM

El Chichón - geological context - doc. UNAM

El Chichón - geological context - doc. UNAM

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Publié le par Bernard Duyck
Publié dans : #volcanic activity
Pacaya - 21.01.2021 - degassing between the explosions and lava flow on the southern flank (right of the image) - photo Conred - one click to enlarge

Pacaya - 21.01.2021 - degassing between the explosions and lava flow on the southern flank (right of the image) - photo Conred - one click to enlarge

Pacaya - thermal anomalies at 01.22.2021 at 03.50 a.m. - Doc.Mirova_MODIS_Latest10NTI

Pacaya - thermal anomalies at 01.22.2021 at 03.50 a.m. - Doc.Mirova_MODIS_Latest10NTI

At Pacaya, weak to moderate explosive activity marks Mackenney crater, with ash emissions 100-200 meters above the crater.

The effusive activity feeds a lava flow, 800 meters long, on the southern flank; avalanches are observed at the flow front.

The PCG and PCGS seismic stations record tremor, associated with the rise of magma, the movements of the lava flow and gases.

 

Sources: Insivumeh and Conred

Raung - gray ash emission on 01.22.2021 / 07:27 a.m. WIB - PVMBG webcam

Raung - gray ash emission on 01.22.2021 / 07:27 a.m. WIB - PVMBG webcam

Raung - seismicity at 01.21.2021 - increase in tremor and emission earthquakes - Doc. PVMBG / Magma Indonesia

Raung - seismicity at 01.21.2021 - increase in tremor and emission earthquakes - Doc. PVMBG / Magma Indonesia

Gunung Raung, East Java's activity level was increased from level I (normal) to level II (alert) on January 21, 2021

On January 20, 2021, a deep volcanic earthquake was recorded, followed by a non-harmonic tremor, indicating a supply of magma from a depth below the summit crater of Mount Raung.

The height of the gas column and the color of the blower began to change on January 21, 2021. The color of the blown column indicates that there is ash carried to the surface.

 

At Activity Level II (Alert), it is recommended that the public / visitors / tourists do not perform activities within 2 km of the crater / peak.

Local governments, provincial and regency BPBDs should always coordinate with Raung Volcano Observation Post in Mangaran Village, Sumber Aru Village, Songgon District, Banyuwangi Regency, east of Java and / or with the Center for Volcanology and Geological Disaster Mitigation in Bandung.

 

Sources : PVMBG & Magma Indonesia

Anak Krakatau - video by GSM camera and drone of the volcano's morphology / 2020.12 - Indonesian Volcano

In a recent video from Anak Krakatau, based on cell phone and drone footage, we can observe the volcano's new morphology : a pyroclastic cone estimated to be 90 meters high, while the current summit is 158 meters. A lava flow in an easterly direction is up to 10 meters thick.

 

The Krakatau is currently in activity level 2 / waspada.

The seismicity of January 21, 2021 is characterized by:

1 emission earthquake, with an amplitude of 4 mm and the earthquake lasts 15 seconds.

8 low frequency earthquakes, with an amplitude of 6 to 13 mm and the duration of the earthquake was 7 to 10 seconds.

A distant tectonic earthquake

and a continuous tremor with an amplitude of 1-13 mm, dominating 2 mm.

 

The public / tourists are not allowed to approach the crater within 2 km of the crater

The latest VONA received the color code ORANGE, published on April 17, 2020 at 5:51:00 PM WIB. , without observation of the rash.

 

Sources: PVMBG, Magma Indonesia

Popocatépetl - 17.01.2021 ash emission - photo © Thierry Sluys (see also article of the 17.01)

Popocatépetl - 17.01.2021 ash emission - photo © Thierry Sluys (see also article of the 17.01)

Popocatépetl - image Sentibel 2 nat. colors from 01.21.2021 - via A.Vecoli / Twitter

Popocatépetl - image Sentibel 2 nat. colors from 01.21.2021 - via A.Vecoli / Twitter

The activity of Popocatépetl has declined over the last 15 days in 4 volcano-tectonic earthquakes, 408 exhalations, 9 explosions and 13,559 minutes of tremor. The ash emissions follow one another in a north direction.

 

During the last 24 hours, thanks to the monitoring systems of the Popocatépetl volcano, 8 exhalations and 1,327 minutes of tremor have been identified, accompanied by emissions of water vapor, volcanic gases and small amounts of ash.

They are interspersed with volcanic gas emissions which disperse northward.

 

The alert level remains at Amarillo fase 2, with a safety zone of 12 km.

 

Sources: CENAPRED and webcams of Mexico

Popocatépetl - 21.01.2021 / 08:24 - WencamsdeMexico

Popocatépetl - 21.01.2021 / 08:24 - WencamsdeMexico

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Publié le par Bernard Duyck
Publié dans : #volcanic activity
Etna SEC - strombolian activity of 20.01.2021 / 19:35 - photo Gio Giusa

Etna SEC - strombolian activity of 20.01.2021 / 19:35 - photo Gio Giusa

At Etna, analysis of images from INGV-OE video surveillance cameras shows that from around 5.30 p.m. GMT the flow produced by the lava overflow on the north side of the south-eastern crater is no longer supplied. and cools. Weak Strombolian activity continues at the southeast crater.

As for the volcanic tremor, no substantial change is noted. The amplitude of the tremor remains high, although it does not reach alarm levels. The sources of the quake are located in the area of ​​the south-eastern crater, at a level of 2900-3000 m above sea level. In the last hours there is a decrease in infrasonic activity.

 

Source: INGV OE

Kilauea - the lava lake of Halema'uma'u divided into 2 parts, one of which is active on 01.19.2021 / 6 p.m. HST - photo H. Dietterich / USGS

Kilauea - the lava lake of Halema'uma'u divided into 2 parts, one of which is active on 01.19.2021 / 6 p.m. HST - photo H. Dietterich / USGS

In Kilauea, the west vent feeds a lava channel that drains into the lava lake inside Halema'uma'u crater. The most recent sulfur dioxide emission ratio was 2.50 tonnes / day on January 16.

The active western half of the lava lake was about 202 m deep on the morning of January 20, while the stagnant eastern half of the lake remains several meters lower. The entire lava lake - including half of it is stagnant - is perched / elevated at least 1-2m above the crust between the perched lake and the crater wall.

All of the islands have remained stationary for the past week, taken in the stagnant eastern part of the lava lake. The dimensions of the main island have remained unchanged with its edges several meters above the surface of the lake. On January 12, the western end of the island was measured 8 m (26 ft) above the lava lake surface, with the highest point 23 m (75 ft) above the surface.

 

Source: HVO-USGS

Sinabung - 01.21.2021 06:39 WIB - PVMBG webcam

Sinabung - 01.21.2021 06:39 WIB - PVMBG webcam

The activity of Sinabung continues.

The seismicity of January 20, 2021 includes:

- 1 eruption earthquake, with an amplitude of 55 mm, and the duration of the earthquake was 201 seconds.

- 52 collapse earthquakes, with an amplitude of 2 to 33 mm and a duration of 13 to 115 seconds.

- 12 emission earthquakes

- 10 low frequency earthquakes

- 3 hybrid / multiphase earthquakes

- 3 local tectonic earthquakes

 

This Thursday, January 21, 2021, an episode at 6:35 a.m. WIB produced a small plume of ash, observed at ± 500 m above the peak (± 2960 m above sea level). The ash column was gray with moderate intensity to the east and southeast. This eruption was recorded on a seismograph with a maximum amplitude of 120 mm and a duration of 94 seconds.

 

In activity level 3 / siaga, it is recommended that communities and visitors / tourists not carry out activities in villages that have been displaced, as well as within a radial radius of 3 km from the summit of G. Sinabung, and a sector radius of 5 km for the south-eastern sector and 4 km for the east-north sector.

 

Source: PVMBG & Magma Indonesia

Poas - 2 small convection cells on the acid lake - photo Ovsicori / 01.19.2021

Poas - 2 small convection cells on the acid lake - photo Ovsicori / 01.19.2021

At Poas, no eruption.

The level of the lake remains stable; over the last few days, it had presented two small convection cells, of a slightly darker gray color than that of Laguna Caliente.

The gas emission ratio remains within the limits of the previous weeks. Sulfur gas fumaroles leave deposits of sulfur.

 

Source: Ovsicori

Poas - fumaroles and sulfur deposits - photo Ovsicori 01.17.2021

Poas - fumaroles and sulfur deposits - photo Ovsicori 01.17.2021

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Publié le par Bernard Duyck
Publié dans : #volcanic activity
Etna - 01.19.2021 - contrast between snow cover and lava - Sentinel -2 / CLMS High-Resolution Snow and Ice Monitoring image - one click to enlarge

Etna - 01.19.2021 - contrast between snow cover and lava - Sentinel -2 / CLMS High-Resolution Snow and Ice Monitoring image - one click to enlarge

 Etna crat. summits - thermal anomalies and activity mark all craters - Sentinel-2 image from 01.19.2021 / 09:42 am via Mounts projects

Etna crat. summits - thermal anomalies and activity mark all craters - Sentinel-2 image from 01.19.2021 / 09:42 am via Mounts projects

A slight eruptive activity continued at the southeastern crater of Etna, on the evening of January 19, 2021, and from time to time, the crater of Voragine also appears active.

The National Institute of Geophysics and Vulcanology, Etnéo Observatory, communicates that from around 00:40 hours, a new lava overflow is observed on the north side of the South East Crater. In addition, moderate Strombolian activity is still present at the South East Crater.

With regard to the volcanic tremor, we notice an increase in magnitude which reaches high values.

The infrasonic activity is modest.

Etna's GPS network data shows no significant variation.

 

Source: INGV OE

Etna SEC - lava overflow on the north side of the SEC - therm webcam. 01.20.2021 / 02.35 a.m. - INGV OE

Etna SEC - lava overflow on the north side of the SEC - therm webcam. 01.20.2021 / 02.35 a.m. - INGV OE

Etna - trémor at 20.01.2021 / 04:10 - Doc. INGV OE

Etna - trémor at 20.01.2021 / 04:10 - Doc. INGV OE

Etna - SEC activity on January 20, 2021 at 12:58 am and 2:58 am - LAVE webcam EtnaEtna - SEC activity on January 20, 2021 at 12:58 am and 2:58 am - LAVE webcam Etna

Etna - SEC activity on January 20, 2021 at 12:58 am and 2:58 am - LAVE webcam Etna

Merapi - activity on 01.19.2021 - and detail of the seismicity on 01.19 / 00-24h - Doc. BPPTKG

Merapi - activity on 01.19.2021 - and detail of the seismicity on 01.19 / 00-24h - Doc. BPPTKG

In Merapi, on the island of Java, activity continues in an ascending mode.

This January 20 at 5:35 am local time, a pyroclastic flow traveled 1,200 meters in the Kali Krasak drainage.

Two other pyroclatic flows are reported between 00 and 6 o'clock

Their print is 13-21 mm, lasting 116 to 198 seconds.

The PVMBG also reports:

- 36 collapse earthquakes, with an amplitude of 3 to 20 mm and the duration of the earthquake was 12 to 170 seconds.

- 1 hybrid / multiphase earthquake with an amplitude of 3 mm, S-P 0.5 seconds and the duration of the earthquake was 10 seconds.

- 1 distant tectonic earthquake with an amplitude of 60 mm, S-P 10 seconds and a long earthquake of 110 seconds.

The activity level remains at 3 / siaga.

 

Source: PVMBG & BPPTKG

 Merapi - pyroclastic flow of 20.01.2021 / 06:17 WIB - Doc. PVMBG

Merapi - pyroclastic flow of 20.01.2021 / 06:17 WIB - Doc. PVMBG

An eruptive épisode occurred at Suwa Nosejima (Mitake Crater) at 3:51 p.m. JST on January 20, and the plume of gas and ash rose 2,500 m above the rim of the crater. The volcanic ash moved west from the crater, and within an hour a fairly large amount of ash fell in Toshima village, Kagoshima prefecture.

 

Source: JMA

Suwanosejima - eruptive episode of 01.20.2021 / 3:51 p.m. loc. - JMA webcam

Suwanosejima - eruptive episode of 01.20.2021 / 3:51 p.m. loc. - JMA webcam

 Suwanosejima - the eruptive episode of 01.20.2021 / 3:58 p.m. loc. - JMA webcam

Suwanosejima - the eruptive episode of 01.20.2021 / 3:58 p.m. loc. - JMA webcam

The growth of the dome continues at the Soufrière de St Vincent.

There are multiple areas of steam / fumarole on the 1979 dome, at the point of contact between the old and new dome, and on top of the new dome.

The dome took on an elliptical shape.

We can see a black mass of burnt vegetation, potentially caused by the contact between the growing very hot dome and the abundant shrubs in the crater; it occupies about 100 meters at the western end of the dome. It is possible that this vegetation damage occurred on Saturday evening, January 16, 2021, and could be the cause of the glow or glow reported by residents on the west side of the volcano.

 

Source: UWI - SRC

Soufrière de St Vincent - the fumaroles at the top of the new dome and in contact between the new and the old - photo NEMO 18.01.2021

Soufrière de St Vincent - the fumaroles at the top of the new dome and in contact between the new and the old - photo NEMO 18.01.2021

Soufriere de St Vincent - burnt area west of the new dome - photo NEMO 18.01.2021

Soufriere de St Vincent - burnt area west of the new dome - photo NEMO 18.01.2021

Summary of Soufrière's activity by Prof. R. Robertson / UWI-SRC on January 18th, 2021

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Publié le par Bernard Duyck
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 Etna SEC - 01.18.2021 - the "grand finale" with several overflows that spill over the south east and north east side of the cone. - photo © Gio Giusa

Etna SEC - 01.18.2021 - the "grand finale" with several overflows that spill over the south east and north east side of the cone. - photo © Gio Giusa

Following a lava flow on January 17, starting at 19:15 GMT on 01/18/2021, a new lava overflow occurred at the southeastern crater of Etna. The front moves towards the Valle del Bove and reaches the 2900 m elevation.

There is currently intense Strombolian activity on the part of the SEC. From 19:00 UTC, we note an increase in the amplitude of the volcanic tremor, which is currently reaching high values. At the same time, there is also an increase in infrasound tremor. Etna's GPS network data does not show significant variations.

The intense Strombolian activity produced by the southeast crater suddenly turned into a faint lava fountain reaching its peak at around 8:30 p.m. GMT. This activity generated a volcanic cloud which dispersed east-south-east and formed a deposit of volcanic ash on the eastern flanks of the volcano. In fact, during the explosive activity, a relapse of volcanic ash was reported in Fleri.

Etna - SEC lava flow on 01.17.2021, at 8:55 am and 11:45 am / INGV Emot - summit craters with a hot spot, and the SEC and the flow in the Valle del Bove - Sentinel-2 image via Antonio Vecoli - a click to enlarge Etna - SEC lava flow on 01.17.2021, at 8:55 am and 11:45 am / INGV Emot - summit craters with a hot spot, and the SEC and the flow in the Valle del Bove - Sentinel-2 image via Antonio Vecoli - a click to enlarge
Etna - SEC lava flow on 01.17.2021, at 8:55 am and 11:45 am / INGV Emot - summit craters with a hot spot, and the SEC and the flow in the Valle del Bove - Sentinel-2 image via Antonio Vecoli - a click to enlarge

Etna - SEC lava flow on 01.17.2021, at 8:55 am and 11:45 am / INGV Emot - summit craters with a hot spot, and the SEC and the flow in the Valle del Bove - Sentinel-2 image via Antonio Vecoli - a click to enlarge

Etna SEC - evolution of the activity of 01.18.2021, at 5:20 p.m., 8:03 p.m. and 9:08 p.m. - therm webcam. INGV OE - one click to enlargeEtna SEC - evolution of the activity of 01.18.2021, at 5:20 p.m., 8:03 p.m. and 9:08 p.m. - therm webcam. INGV OE - one click to enlarge
Etna SEC - evolution of the activity of 01.18.2021, at 5:20 p.m., 8:03 p.m. and 9:08 p.m. - therm webcam. INGV OE - one click to enlarge

Etna SEC - evolution of the activity of 01.18.2021, at 5:20 p.m., 8:03 p.m. and 9:08 p.m. - therm webcam. INGV OE - one click to enlarge

 Etna - tremor on 19.01.2021 - Doc. INGV OE

Etna - tremor on 19.01.2021 - Doc. INGV OE

Etna - 01.19.2021 - Therm webcam INGV Emct0142

Etna - 01.19.2021 - Therm webcam INGV Emct0142

 Etna - this January 19 in the morning - photo © Turi Cageggi

Etna - this January 19 in the morning - photo © Turi Cageggi

Explosive activity has declined significantly from the start from around 9:00 p.m. GMT. As for the effusive activity, the CCTV cameras of the INGV-OE show, as previously communicated, two distinct lava flows: one goes towards the East, inside the Valle del Bove, the another to the north. From 21:00 UTC, a rapid decrease in volcanic tremor and infrasound signal was recorded. At around 9:30 p.m. UTC, both signals reached the levels that preceded the eruptive activity.

Analysis of images from INGV-OE video surveillance cameras on the morning of January 19 shows that the volcanic cloud is no longer present in the atmosphere. At the southeast crater, sporadic ash emissions remain rapidly dispersed by high winds. It is also observed that the lava flows, confined to the summit area, are cooling. From the point of view of the volcanic tremor, compared to the previous version, no significant change is noted. The amplitude of the tremor is at average levels, the infrasound activity is discrete, characterized by low amplitude transients. The data from the deformation networks do not show significant variations, with the exception of the Cratere del Piano station.

 

Source: INGV OE

Stromboli - activity from January 18, 2021, at 10:59 am, 12:07 pm and 7:06 pm respectively - therm webcam. INGV OE - one click to enlarge
Stromboli - activity from January 18, 2021, at 10:59 am, 12:07 pm and 7:06 pm respectively - therm webcam. INGV OE - one click to enlargeStromboli - activity from January 18, 2021, at 10:59 am, 12:07 pm and 7:06 pm respectively - therm webcam. INGV OE - one click to enlarge

Stromboli - activity from January 18, 2021, at 10:59 am, 12:07 pm and 7:06 pm respectively - therm webcam. INGV OE - one click to enlarge

The National Institute of Geophysics and Vulcanology, Etnéo Observatory, announces that since 9:45 hours GMT on January 18, 2021; INGV-OE surveillance cameras show an overflow of lava produced by mouth N2 of the northern crater zone of Stromboli.

This overflow, preceded at night by spattering activity, was well fed between 10:10 GMT and 11:30 GMT approximately, reaching a height of about 700 m above sea level. Analysis of the footage from the INGV's video surveillance cameras also showed glowing blocks that stood out from the front and rolled along the Sciara del Fuoco.

At 12.58 UTC, this overflow is no longer supplied but a thermal anomaly visible by the video surveillance cameras of the INGV-OE remains. In addition, there is ordinary Strombolian activity from both North and South crater areas.

Stromboli - 01/18/2021 / 5:20 p.m. - webcam therm. INGV

Stromboli - 01/18/2021 / 5:20 p.m. - webcam therm. INGV

From 14:10 GMT the images from the CCTV cameras of the INGV-OE show a projection activity present in the area of ​​the Center-South crateric zone which produces incandescent blocks which roll episodically along the Sciara del Fuoco. The projection activity continued in the central-south crater area until the evening, with incandescent boulder falls rolling into the Sciara del Fuoco.

Rather, the lava overflow from the North Crater area can be considered complete.

 

Source: INGV OE

Merapi - pyroclastic flow of January 19 / 2:28 and 2:29 a.m. - Doc. PVMBG
Merapi - pyroclastic flow of January 19 / 2:28 and 2:29 a.m. - Doc. PVMBG

Merapi - pyroclastic flow of January 19 / 2:28 and 2:29 a.m. - Doc. PVMBG

Merapi's activity continues on January 19, 2021.

The seismicity of the day from 00 to 6 a.m. mentions:

- a pyroclastic flow earthquake, at 2:27 WIB, leaving a trace on the 60 mm amplitude seismogram for 209 sec. It moved 1,800 meters towards Kali Krasak, and was accompanied by a plume 500 meters high above the summit.

- 31 collapse / avalanche earthquakes

- 2 hybrid multiphase earthquakes. The alert level remains at 3 / siaga

 

Source: Magma Indonesia

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Popocatépetl - 01.17.2021 - photo © Thierry Sluys (accompanied by Dr. Robin Campion)

Popocatépetl - 01.17.2021 - photo © Thierry Sluys (accompanied by Dr. Robin Campion)

Popocatépetl - 01.17.2021 - photo © Thierry Sluys (accompanied by Dr.Robin Campion)

Popocatépetl - 01.17.2021 - photo © Thierry Sluys (accompanied by Dr.Robin Campion)

Popocatépetl - 01.17.2021 - photo © Thierry Sluys (accompanied by Dr. Robin Campion)

Popocatépetl - 01.17.2021 - photo © Thierry Sluys (accompanied by Dr. Robin Campion)

During the last 24 hours, thanks to the monitoring systems of the Popocatépetl volcano, 16 exhalations and 981 minutes of tremor have been identified, accompanied by emissions of water vapor, volcanic gases and small amounts of ash.

In addition, three minor explosions were recorded, two on January 16 at 12:41 p.m. and 4:51 p.m., and the last one on january 17 at 8:36 a.m. Visibility is partial, but allowed to observe a slight emission of water vapor, gas and a slight quantity of ash, which disperses towards the northeast.

CENAPRED urges not to go closer to the volcano and especially the crater, because of the danger posed by the fall of ballistic fragments and, in the event of heavy rains, to stay away from the bottom of the ravines because of the danger of mudslides and garbage. The Popocatépetl volcanic alert semaphore is Amarillo fase 2 .

 

Sources: Cenapred, webcams from Mexico City, and photos by Thierry Sluys, accompanied by Dr.Robin Campion.

Etna SEC - plume and lava flow towards Valle del Bove - 01.17.2021 / 10:06 am - INGV OE cam. therm. Emot

Etna SEC - plume and lava flow towards Valle del Bove - 01.17.2021 / 10:06 am - INGV OE cam. therm. Emot

 Etna - trémor on 01/18/2021 -Doc. INGV OE

Etna - trémor on 01/18/2021 -Doc. INGV OE

The National Institute of Geophysics and Volcanology, Etna Observatory, communicates that since around 06:40 GMT on January 17, 2021, surveillance cameras show a lava overflow produced by the eastern mouth of the Southeast Crater (SEC ). The overflow extends on the eastern flank of the south-eastern crater in the direction of the Bove Valley and currently the front is located at about 3000 meters at sea level. For the moment, the flow is advancing on the eastern base of the cone. of the Southeast Crater, probably invading one of the open mouths on December 24, 2018 at the start of the flank eruption.

Regarding the explosive activity at the summit craters, we observe a decrease in the frequency of Strombolian explosions by the SEC, while the intracratera activity at the craters of Voragine and Bocca Nuova remains almost unchanged. With regard to the volcanic tremor, its amplitude oscillates on average and high values, the source is located in the SEC area between 2.8 and 3 km above sea level.

The infrasonic activity in recent hours has shown no significant variation and is localized in the region of the SEC and Voragine. No significant change was recorded in the deformation signals acquired by the permanent GPS network.

 

Source: INGV OE and Boris Bencke

The Sinabung from Payung and the summit dome - 17.01.2021 / 17:14 WIB - photos Firdaus Surbakti via Beidar Sinabung
The Sinabung from Payung and the summit dome - 17.01.2021 / 17:14 WIB - photos Firdaus Surbakti via Beidar Sinabung

The Sinabung from Payung and the summit dome - 17.01.2021 / 17:14 WIB - photos Firdaus Surbakti via Beidar Sinabung

At Sinabung, the main crater plume was white and gray, thick, reaching about 50 to 500 meters above the summit.

Thanks to seismographic recordings of January 17, 2021, it was recorded:

- 3 eruption earthquakes, with an amplitude between 2 and 38 mm lasting 120 + 171 sec.

- 40 collapse / avalanche earthquakes

- 20 blast / emission earthquakes

- 4 low frequency earthquakes

- 5 hybrid / multiphase earthquakes

- 2 local tectonic earthquakes and 2 distant tectonic earthquakes.

 

At level 3 / siaga, the community and visitors / tourists are recommended not to carry out activities in the villages that have been moved, as well as within a radial radius of 3 km from the summit of G. Sinabung, and a sector radius of 5 km for the south-east sector and 4 km for the east-north sector.

 

Sources: PVMBG, Magma Indonesia and Beidar Sinabung

Merapi - 01/18/2021 / 5:43 a.m. - pyroclastic flow of collapse - photo PVMBG

Merapi - 01/18/2021 / 5:43 a.m. - pyroclastic flow of collapse - photo PVMBG

A pyroclastic flow of avalanche occurred on January 18, 2021 at 05.43 WIB in Merapi. It was recorded on the seismogram with an amplitude of 22 mm and a duration of 112 seconds. Distance of ± 1000 meters to the southwest (K Krasak) Column height observed at 50 meters above the summit. The wind was blowing from the southeast.

 

Source: BPPTKG

Soufrière de St Vincent - taking temp. at the FLIR thermal cam max ext. 590 °C - Doc. 01.16.2021 Dr. Adam Stinton, UWI Seismic Research Center

Soufrière de St Vincent - taking temp. at the FLIR thermal cam max ext. 590 °C - Doc. 01.16.2021 Dr. Adam Stinton, UWI Seismic Research Center

At La Soufrière in St Vincent, during the field visit on January 16, Dr. Adam Stinton took photos of the dome with a thermal camera: on a growing area, the max. was 590.8 ° C… the internal temperatures must be higher, which justifies a night incandescence. An expanse of burnt vegetation was observed in the western section of the crater floor, extending outward from the dome.

The lava dome continued to spread laterally and increase in height with its top now being marked by a small outgassing circular depression. The most active gas emission areas were reported as the contact areas between the preexisting 1979 dome and the 2020-21 dome, as well as the top of this new dome.

The alert level remains at Orange.

The volcano continues to extrude magma to the surface and the vapor can still be observed from the Belmont Observatory. People living in areas near the volcano should expect strong sulfur smells for several days or weeks, depending on changes in wind direction.

The National Emergency Management Organization reminds the public that no evacuation order or evacuation notice has been issued. NEMO continues to call on the public to refrain from visiting the Soufrière volcano, especially entering the crater, as this is extremely dangerous.

 

Sources: UWI-SRC 1 NEMO

Activity of Popocatépetl, Etna, Sinabung, Merapi and Soufrière SVG

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The PVMBG said the state of Mount Semeru is still at Level II or `` Alert '', following the production of a pyroclastic flow of collapse (APG / Awan Panas Guguran) which has slipped by about 4 kilometers to the south-eastern and southern sectors of the summit and was accompanied by boulder avalanches, over a sliding distance of between 500 and 1000 meters from the Jonggring Seleko crater towards Besuk Kobokan this Saturday January 16, 2021 at 5:24 pm WIB .

Based on the seismic results, APG recordings were reported with a maximum amplitude of 22 millimeters and a duration of 4,287 seconds.

Semeru - the development of the pyroclastic flow and the co-pyroclastic plume of January 16, 2021 from 5:24 pm WIB - Doc. PVMBG - one click to enlarge
Semeru - the development of the pyroclastic flow and the co-pyroclastic plume of January 16, 2021 from 5:24 pm WIB - Doc. PVMBG - one click to enlarge
Semeru - the development of the pyroclastic flow and the co-pyroclastic plume of January 16, 2021 from 5:24 pm WIB - Doc. PVMBG - one click to enlarge

Semeru - the development of the pyroclastic flow and the co-pyroclastic plume of January 16, 2021 from 5:24 pm WIB - Doc. PVMBG - one click to enlarge

The number of occurrences of avalanche earthquakes, eruption earthquakes, emission earthquakes and harmonic earthquakes during this period still remains high, indicating that the movement of magma towards the surface is still occurring.

The PVMBG also recalls that the potential risk of the Mount Semeru eruption is in the form of glowing rock around the summit, while the ash-sized ejection material may be spread further depending on the direction and wind speed. Then, other potential dangers are pyroclastic avalanches and avalanches of rocks from the dome / tip of the lava tongue towards the southeast and south sectors of the summit.

In case of rain, lahars can occur along the course of the river which begins in the area of ​​the lava tip.

In level II (alert) status, people / visitors / tourists are advised not to do activities within 1 km radius of the crater / summit of Mount Semeru and at a distance of 4 km from the direction of the opening of the crater in the south-southeast sector.

 

Sources: PMBG, Magma Indonesia, BNPB / Dr. Raditya Jati Head of Disaster Data, Information and Communication Center.

Merapi - 01.16.2021 - dome glow - Dok. BPPTKG

Merapi - 01.16.2021 - dome glow - Dok. BPPTKG

 Merapi- 16.01.2021 - avalanche of glowing blocks - Dok. BPPTKG

Merapi- 16.01.2021 - avalanche of glowing blocks - Dok. BPPTKG

At Merapi, on Java, the dome continues to grow; it is incandescent at night, with rockslides.

The seismicity of January 16 breaks down into:

- Two earthquakes, accompanying pyoclastic flows of collapse, with an amplitude of 28 to 60 mm and an earthquake duration of 83.1 to 150.6 seconds.

- 113 collapse / avalanche earthquakes, with an amplitude of 3 to 23 mm and a duration of 13 to 122 seconds.

- 5 emission earthquakes, with an amplitude of 4 to 8 mm and the earthquake lasted 12 to 29 seconds.

- 38 hybrid / multiphase earthquakes with an amplitude of 3-25 mm, S-P 0.3-0.5 seconds and the duration of the earthquake was 4-13 seconds.

- 7 shallow volcanic earthquakes

- 1 distant tectonic earthquake.

 

The alert level remains at 3 / siaga, with a no-access zone that varies according to the orientations

 

Source: PVMBG & BPPTKG

Soufrière de St Vincent - 16.01.2021 - collection of lava samples from the dome by Dr. R. Robertson - UWI-RSC

Soufrière de St Vincent - 16.01.2021 - collection of lava samples from the dome by Dr. R. Robertson - UWI-RSC

Scientists safely and successfully collected rock samples from the new lava dome at St Vincent's Soufriere on January 16.

Analyzing the composition of these rocks will provide valuable information on whether the new dome is made of old material (linked to the 1979 eruption) or fresh material from greater depths. This will complement data from other monitoring techniques, which will allow scientists to better understand how the current eruption occurred, and will evolve.

Soufrière de St Vincent - 16.01.2021 - Lava samples from the dome by Dr. R. Robertson - UWI-RSC

Soufrière de St Vincent - 16.01.2021 - Lava samples from the dome by Dr. R. Robertson - UWI-RSC

There is no explosive eruption at the Soufriere volcano at this time. No evacuation order was issued either.

Soufriere continues to erupt "effusively" as hot magma reaches the surface at extreme temperatures. This appears overnight as a bright red glow above the crater, observed by the villagers of Chateaubelair and surrounding areas on the western flank of the volcano.

 

Sources: UWI-SRC, NEMO

Klyuchevskoy - 17.01.2021 - Volcanic ash advisory - Doc. VAAC Tokyo

Klyuchevskoy - 17.01.2021 - Volcanic ash advisory - Doc. VAAC Tokyo

At Klyuchevskoy, the explosive-effusive eruption continues.

A plume of gas, steam and a little ash was emitted and formed a cloud at 6,000-6,500 meters asl. stretching 65 km northeast of the volcano.

The thermal anomalies, marking the effusion, are very variable as the weather conditions.

The aviation code is orange, other ash explosions can occur at any time.

 

Sources: KVERT & VAAC Tokyo

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Kilauea, Halema Vent Ouest - 01/14/2021 / 7.15am HST - USGS photo taken by K. Lynn - USGS

Kilauea, Halema Vent Ouest - 01/14/2021 / 7.15am HST - USGS photo taken by K. Lynn - USGS

In Kilauea, lava activity is confined to Halemaʻumaʻu crater, with lava erupting from a vent on the northwest side of the crater.

This morning, January 15, the lava lake has a depth of about 199 m and remains stagnant on its eastern half. SO2 emission rates remain high. The low fountain in the west vent feeds a lava channel that drains into the lava lake at Halema'uma'u Crater.

The active western half of the lava lake was about 199m deep on January 15, while the stagnant eastern half of the lake remains several meters below. The entire lava lake - including half of it stagnant - is perched at least 1-2m above the crust between the perched lake and the crater wall. All of the islands have been stationary for the past week as if frozen in the stagnant parts of the eastern lava lake. The dimensions of the main island have remained unchanged with its edges several meters above the surface of the lake.

 

Source: HVO-USGS 01.15.2021 / 18:58 UTC

Kilauea, Halema'uma'u West Vent - Brief (less than 20 minutes) changes in activity near the vent when part of the west vent projection cone collapsed on January 13, 2021. The first photo was taken seconds after the collapse at 5:06 p.m., showing the main lava spillway. Three minutes later, at 5:09 p.m., a second vent to the east (right) sent a new flow of lava to the side of the projection cone. This ephemeral (short-lived) flow remained active until 5:25 p.m. - photo N. Deligne / USGS

Kilauea, Halema'uma'u West Vent - Brief (less than 20 minutes) changes in activity near the vent when part of the west vent projection cone collapsed on January 13, 2021. The first photo was taken seconds after the collapse at 5:06 p.m., showing the main lava spillway. Three minutes later, at 5:09 p.m., a second vent to the east (right) sent a new flow of lava to the side of the projection cone. This ephemeral (short-lived) flow remained active until 5:25 p.m. - photo N. Deligne / USGS

The activity of Merapi between January 8-14, 2021 is reported by the BPPTKG:

Lava blocksls have been observed 128 times with a maximum slide distance of 900 meters southwest over the upper Kali Krasak. There were 2 pyroclastic flows, with a maximum slide distance of 600 m to the southwest (upstream of Kali Krasak).

Morphological analysis of the summit area, based on photos of the southwest sector from January 14 to January 7, 2021 shows a change in the morphology of the peak area due to avalanche activity and the development of new domes of wash. The new lava dome, referred to as "The Lava Change 2021" is located in the southwest sector of Mount Merapi around the 1997 Lava Cliffs.

On January 14, 2021, the measured volume of the lava dome was 46,766 m³ with a growth rate of approximately 8,500 m³ / day.

 The intensity of internal seismicity has decreased significantly this week compared to last week. Meanwhile, RF earthquakes that reflect lava avalanche activity from the eruption tend to be high.

The deformation of Mount Merapi, monitored using the EDM this week, showed a shortening rate of 6 cm / day. Over the past two weeks, the rate of distance shortening has shown a significant decrease.

The volcanic activity of Mount Merapi is still quite high in the form of effusive eruption activity. The activity status is defined at level 3 "siaga".

Current potential dangers in the form of lava avalanches and hot clouds in the South-Southwest sector include the Boyong, Bedog, Krasak, Bebeng and Putih rivers, with a maximum distance of 5 km. During this time, the ejection of volcanic material in the event of an explosive eruption can reach a radius of 3 km from the summit.

 Merapi - the summit and the domes on 01.11.2021 / 07:43 a.m. - photo IG Merapi uncover

Merapi - the summit and the domes on 01.11.2021 / 07:43 a.m. - photo IG Merapi uncover

Merapi - map of potential risks revised on 15.01.2021 - Doc. BPPTKG - one click to enlarge

Merapi - map of potential risks revised on 15.01.2021 - Doc. BPPTKG - one click to enlarge

Seismicity and activity from January 15th / 00:00 – 24:00

  • 104 collapse / avalanche earthquakes, with an amplitude of 3 to 60 mm and an earthquake duration of 15.8 to 78.4 seconds.

  • - 2 blast / emission earthquakes, with an amplitude of 3 to 15 mm, and the earthquake lasted 12 to 34.6 seconds.

  • - 74 hybrid / multiphase earthquakes, with an amplitude of 2-15 mm, S-P 0.3-0.5 seconds and the duration of the earthquake 5.4-9.1 seconds.

  • - 17 shallow volcanic earthquakes, with an amplitude of 30 to 75 mm and the duration of the earthquake was 11.3 to 28.6 seconds.

  • - 3 distant tectonic earthquakes, with an amplitude of 3 to 10 mm, S-P 18.96 seconds and an earthquake duration of 26 to 238 seconds. 

Sources : BPPTKG, PVMBG, Magma Indonesia

Merapi - 01.15.2021 - Incandescence of the dome, falling blocks, and fumaroles - very didactic and aesthetic photo by Øystein Lund Andersen

Merapi - 01.15.2021 - Incandescence of the dome, falling blocks, and fumaroles - very didactic and aesthetic photo by Øystein Lund Andersen

Shikhzekhirli mud volcano has erupted in Gobustan, Azerbaijan.

The Bureau of Earthquake Research reported that the volcanic eruption was characterized by three cycles of activity during the day. It was noted that the first active phase of the rash occurred at 17:48:36 local time and lasted almost three and a half minutes, the second phase started at 17:53:59 and lasted 2 minutes 18 seconds, and the third at 17:58:17 local time and lasted longer than the previous ones (7 minutes).

Due to volcanic activity, 2.5 hectares of land were completely covered with solid waste. A total of 1,700 cubic meters of waste was brought to the surface. The Shikhzekhirli mud volcano is not included in the state nature reserve. Bureau of Earthquake Research director Jeyhun Pashayev said it was the 25th volcanic peak, that is, spasmodic volcanic eruptions since 1810.

Azerbaijan is home to amazing and unique natural wonders. The Land of Fire has the largest number of mud volcanoes in the world, with 365 mud volcanoes. Most of the volcanoes are active and 43 of them are protected by the Azerbaijani Ministry of Ecology and Natural Resources.

 

 

Sources: Azernews and Lagazetteaz Azerbaijan

Azerbaijan - Shikhzekhirli / Gobustan mud volcano - photo Lagazettaz 01.15.2021

Azerbaijan - Shikhzekhirli / Gobustan mud volcano - photo Lagazettaz 01.15.2021

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At La Soufrière de St Vincent, the dome continues to grow in height and extends laterally to the east and west, confined between the old dome and the crater wall, following continued magmatic extrusion. Steam is visible from the Belmont Observatory.

A helicopter arrived from Antigua on January 14, allowing aerial reconnaissance, and the taking of thermal images, gas emissions and measurements of the dimensions of the new dome.

New gas measurements and analyzes must be carried out.

The alert level remains at orange.

 

Sources: UWI-SRC & NEMO

Soufrière de St Vincent - the growing dome - NEMO photos 14.01.2021
Soufrière de St Vincent - the growing dome - NEMO photos 14.01.2021

Soufrière de St Vincent - the growing dome - NEMO photos 14.01.2021

Soufrière de St Vincent - the domes seen on 12.01.2021 / 22h18 by Sentinel-1 radar - via Mounts

Soufrière de St Vincent - the domes seen on 12.01.2021 / 22h18 by Sentinel-1 radar - via Mounts

In Pacaya, Guatemala, effusive activity feeds an active lava flow over around 1,600 meters. Insivumeh does not rule out the occurrence of other lava flows on other sides of the volcano; they could be accompanied by degassing plumes with a high ash content.

The seismicity is marked by a constant tremor, in relation to the rise of the magma and a permanent degassing of the crater.

 

Sources: Insivumeh & Sentinel-2

 Pacaya - Sentinel-2 bands image 12,11,5 from 01/14/2021 - incandescence at the summit and lava flow - high temperature zone west of the summit - Doc. Insivumeh

Pacaya - Sentinel-2 bands image 12,11,5 from 01/14/2021 - incandescence at the summit and lava flow - high temperature zone west of the summit - Doc. Insivumeh

The eruption is still in progress at Ili Lewotolok on January 14, 2021, with a white and gray eruptive column of varying intensity, about 200 to 500 meters high from the summit. A low, moderate to loud rumble was heard.

The projections of incandescent material have been observed up to 500-1500 meters southeast of the summit.

Thanks to seismographic recordings of January 14, 2021, it was recorded:

- 18 eruption earthquakes

- 113 blast / emission earthquakes

- 7 episode of harmonic tremor

- a distant tectonic earthquake.

The activity level remains at 3 / siaga. Communities around Mount Ili Lewotolok and visitors / climbers / tourists are recommended not to undertake activities within 3 km of the summit / crater of Mount Ili Lewotolok and in sectoral areas in the southeast until 4 km from the top of Mount Ili Lewotolok to the beach.

 

Source: PVMBG

 Lewotolok - Strombolian activity from 01/14/2021 / 11:44 p.m. - PVMBG webcam

Lewotolok - Strombolian activity from 01/14/2021 / 11:44 p.m. - PVMBG webcam

The Merapi volcano was clearly visible on January 14 until it was covered in fog. The main crater is topped by a white plume, of moderate to thick intensity, about 50 meters high from the summit.

Incandescent blocks falls are observed 17 times, over a maximum sliding distance of 600 meters upstream of the Krasak River.

The seismicity of January 14 is declined in:

- 105 collapse / avalanche earthquakes

- 7 emission / blast earthquakes

- 19 hybrid / multiphase earthquakes

- 2 distant tectonic earthquakes

 

Source PVMBG & BPPTKG

Merapi - falling glowing blocks and reflections on a lenticular cloud - photo Sumosulis TRC BPBD DIY 14.01.2021

Merapi - falling glowing blocks and reflections on a lenticular cloud - photo Sumosulis TRC BPBD DIY 14.01.2021

 Merapi - seismicity at 01.14.2021 (00-24h) - Doc BPPTKG

Merapi - seismicity at 01.14.2021 (00-24h) - Doc BPPTKG

In Kilauea, lava activity is confined to Halemaʻumaʻu with lava erupting from a vent on the northwest side of the crater.

This morning, January 14, the lava lake was about 199 m (653 ft) deep and remains stagnant over its eastern half. Sulfur dioxide emission rate measurements taken on Monday January 11 were around 2,500 t / d.

Yesterday afternoon, summit tiltmeters started registering an inflationary tilt. Seismicity remains high but stable, with regular earthquakes and a few minor earthquakes.

 

Source: HVO-USGS

Kilauea - Halema'uma'u - 14.01.2021 - photo Bruce Omori, mahalo nui Paradise Helicopters, Canon, Really Right Stuff, and Pro Camera Hawaii

Kilauea - Halema'uma'u - 14.01.2021 - photo Bruce Omori, mahalo nui Paradise Helicopters, Canon, Really Right Stuff, and Pro Camera Hawaii

Kilauea - Halema'uma'u - 14.01.2021 / 07h18 HST - doc. HVO F1 cam. therm.

Kilauea - Halema'uma'u - 14.01.2021 / 07h18 HST - doc. HVO F1 cam. therm.

This compilation shows nine heat maps created for the ongoing eruption at Halema'uma'u, atop Kīlauea, which began on December 20, 2020. The maps show the rapid establishment and growth of the lake in the early days , followed by a switch in the dominant vent from the North Fissure to the West Fissure on December 26. The main island moves and turns, presumably controlled by the currents of the lake. The last two maps (January 7 and 12) show the stagnation and cooling of the eastern half of the lake surface. The color range shows relative temperatures across the lake, with blue colors indicating cooler temperatures and red colors indicating warmer temperatures. USGS Maps by Mr. Patrick

This compilation shows nine heat maps created for the ongoing eruption at Halema'uma'u, atop Kīlauea, which began on December 20, 2020. The maps show the rapid establishment and growth of the lake in the early days , followed by a switch in the dominant vent from the North Fissure to the West Fissure on December 26. The main island moves and turns, presumably controlled by the currents of the lake. The last two maps (January 7 and 12) show the stagnation and cooling of the eastern half of the lake surface. The color range shows relative temperatures across the lake, with blue colors indicating cooler temperatures and red colors indicating warmer temperatures. USGS Maps by Mr. Patrick

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