Overblog
Editer l'article Suivre ce blog Administration + Créer mon blog

Earth of fire

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

Publié le par Bernard Duyck
Publié dans : #volcanic activity
Piton de La Fournaise, the eruptive cone on 16.01.2022 / 05:45 loc. - webcam Piton de Bert 1 / OVPF - one click to enlarge

Piton de La Fournaise, the eruptive cone on 16.01.2022 / 05:45 loc. - webcam Piton de Bert 1 / OVPF - one click to enlarge

At Piton de La Fournaise, after a decrease in its amplitude observed for two days, the tremor is relatively stable over the last 24 hours (at 16.01 / 11 a.m.) A decrease in the amplitude of the tremor is accompanied by the appearance of numerous resurgences and persistent flows within the lava field, as observed for two days.

 

Piton de La Fournaise - Evolution of the RSAM (indicator of a surface lava emission) between 21/12/2021 22:00 local time (18:00 UT) and 16/01/2022 10:30 local time (6:30 UT) on the FOR seismological station located at the level of the Château Fort crater – on the left and Evolution of the RSAM (indicator of a surface lava emission) over the last 24 hours on the FOR seismological station located at the level of the Château Fort crater – on the right (© OVPF/IPGP) – one click to enlargePiton de La Fournaise - Evolution of the RSAM (indicator of a surface lava emission) between 21/12/2021 22:00 local time (18:00 UT) and 16/01/2022 10:30 local time (6:30 UT) on the FOR seismological station located at the level of the Château Fort crater – on the left and Evolution of the RSAM (indicator of a surface lava emission) over the last 24 hours on the FOR seismological station located at the level of the Château Fort crater – on the right (© OVPF/IPGP) – one click to enlarge

Piton de La Fournaise - Evolution of the RSAM (indicator of a surface lava emission) between 21/12/2021 22:00 local time (18:00 UT) and 16/01/2022 10:30 local time (6:30 UT) on the FOR seismological station located at the level of the Château Fort crater – on the left and Evolution of the RSAM (indicator of a surface lava emission) over the last 24 hours on the FOR seismological station located at the level of the Château Fort crater – on the right (© OVPF/IPGP) – one click to enlarge

Observations of the eruptive site carried out on January 16 in the morning show that the lava projections at the level of the cone are still present, even if they are less frequent than at the beginning of the week, and occasionally exceed the height of the cone. No overflow from the lava lake has been reported in the past 24 hours.

The front of the last flow arm set up along the southern rampart of the Enclos Fouqué for several days is progressing only very slowly given the relatively low slopes in the sector.

A few small fires at the foot of the rampart, heavily vegetated, are observed.

Piton de LaFournaise - image Sentinel-2 bands 12,11,4 from 16.01.2022 - Doc. Sentinel Hub - one click to expand
Piton de LaFournaise - image Sentinel-2 bands 12,11,4 from 16.01.2022 - Doc. Sentinel Hub - one click to expand

Piton de LaFournaise - image Sentinel-2 bands 12,11,4 from 16.01.2022 - Doc. Sentinel Hub - one click to expand

Piton de La Fournaise - lava flows, and smoke from the fire on the wall of the enclosure (right) on 16.01.2022 / 05:45 loc. - webcam Piton de Bert 1 / OVPF - one click to enlarge

Piton de La Fournaise - lava flows, and smoke from the fire on the wall of the enclosure (right) on 16.01.2022 / 05:45 loc. - webcam Piton de Bert 1 / OVPF - one click to enlarge

The eruption started on 12/22/2021 at 3:30 a.m. local time stopped today, 01/17/2022 at 2:10 a.m. local time (10:10 p.m. UT), following the cessation of the volcanic tremor.

No hypothesis has yet been ruled out as to the evolution of the future situation (permanent shutdown, resumption of activity on the same site, resumption of activity on another site), taking into account seismic signals which are always observed below the top. It should be noted that reddenings are always visible and correspond to the lava tunnels which are draining.

Recommended Alert Level: Backup

 

Source: OVPF

Find all the information relating to the activity of Piton de la Fournaise on the various OVPF-IPGP media: - the website: ipgp.fr/fr/ovpf/actualites-ovpf - the Twitter account: twitter. com/obsfournaise - the Facebook account: facebook.com/ObsVolcanoPitonFournaise

Wolf - sat. GOES-16 - Thermal anomaly on 16.01.2022 / 15h UTC. - via IGEPN / NOAA

Wolf - sat. GOES-16 - Thermal anomaly on 16.01.2022 / 15h UTC. - via IGEPN / NOAA

The superficial and internal activity of the Wolf volcano remains high, but with a downward trend, following IGEPN.

On January 16 in the evening, slight gas emissions were observed in a southwesterly direction, on an image from the GOES-16 satellite.

MIROVA is reporting extreme thermal anomalies on January 16-17, while FIRMS is reporting hundreds of thermal alerts over the past 24 hours.
Satellite monitoring shows that thermal anomalies are continuing.

During the last 24 hours, the seismicity is characterized by a volcano-tectonic earthquake and 3 LP earthquakes.

Alert level of – SNGRE: Without alert

 

Sources: IGEPN, SNGRE, Mirova, sat. GOES-16 / NOOA

Galapagos- Wolf volcano - Thermal anomalies at 01.17.2022 / 04:25 (extreme) -Doc. Mirova _MODIS_Latest10NTI

Galapagos- Wolf volcano - Thermal anomalies at 01.17.2022 / 04:25 (extreme) -Doc. Mirova _MODIS_Latest10NTI

At 5:20 p.m. on Saturday January 15, a large impulsive eruption at the Hunga Tonga-Hunga Ha'apai Volcano in Tonga occurred, causing tsunami activity on Pacific coasts - seen as widely as the west coast of the United States , Peru, Japan and New Zealand.

Following the eruption of HTHH / Tonga, the tsunami affected a very wide area, from the west coast of the United States to Peru, Japan and New Zealand – Doc GeoNet - NZ

Following the eruption of HTHH / Tonga, the tsunami affected a very wide area, from the west coast of the United States to Peru, Japan and New Zealand – Doc GeoNet - NZ

Cyclone Cody was also a complicating factor. The storm caused increased swells around the east coast of the North Island and made our data harder to decipher.
The National Emergency Management Agency (NEMA) issued a National Advisory: Tsunami activity for the east and north coast of New Zealand and the Chatham Islands around 8:30 p.m. Saturday. This was extended to the west coast of the South Island around 9.40am on Sunday based on additional network sightings. They warned people to expect strong, unusual currents and unpredictable surges on the shore.

Unusual strong currents and unpredictable surges don't sound too worrisome, but reports of damage and evacuations from this weekend's event are an important reminder that even a small tsunami can cause property damage and constitute a risk to personal safety.

 

New Zealand is carrying out surveillance flights to assess the extent of the damage to the Tonga Islands, which could still be without internet for two weeks following the volcanic eruption which severed an undersea communication cable.

 

Sources: GeoNet and local observers

Popocatépetl - exhalation of 16.01.2022 / 05:17 - webcamdeMexico / Cenapred

Popocatépetl - exhalation of 16.01.2022 / 05:17 - webcamdeMexico / Cenapred

Popocatépetl - 16.01.2022 / 10:41 am - webcamdeMexico / Cenapred

Popocatépetl - 16.01.2022 / 10:41 am - webcamdeMexico / Cenapred

After two days when an eruption was recorded every day, thanks to the monitoring systems of the Popocatépetl volcano, 18 low intensity exhalations have been identified in the last 24 hours, accompanied by volcanic gases and small amounts of ash.

During the morning and at the time of this report (January 16, 11 a.m. local time), a slight emission of water vapor and volcanic gases with a southeasterly direction is observed.

CENAPRED urges NOT TO APPROACH the volcano and especially the crater, because of the danger of falling ballistic fragments and, in case of heavy rains, to stay away from the bottom of the ravines because of the danger of mudslides and rubbish.

The Popocatépetl volcanic alert is in YELLOW PHASE 2.

 

Source: Cenapred

Commenter cet article

Archives

Articles récents

Hébergé par Overblog