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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
Pacaya - lava flow from MacKenney crater (people on the left give the scale) - photo William Chigne / Twitter 05.28.2020

Pacaya - lava flow from MacKenney crater (people on the left give the scale) - photo William Chigne / Twitter 05.28.2020

The insivumeh reports that, during the night and the morning of May 30, 2020, we were able to observe Strombolian explosions, with expulsion of incandescent materials at 50-100 meters above the MacKenney crater of Pacaya.

This activity feeds a large lava flow in a northeast direction, with a length of 700 meters.

 

Sources: Insivumeh and William Chigna

The insivumeh reports that, during the night and the morning of May 30, 2020, we were able to observe Strombolian explosions, with expulsion of incandescent materials at 50-100 meters above the MacKenney crater of Pacaya.  This activity feeds a large lava flow in a northeast direction, with a length of 700 meters.     Sources: Insivumeh and William Chigna

The insivumeh reports that, during the night and the morning of May 30, 2020, we were able to observe Strombolian explosions, with expulsion of incandescent materials at 50-100 meters above the MacKenney crater of Pacaya. This activity feeds a large lava flow in a northeast direction, with a length of 700 meters.   Sources: Insivumeh and William Chigna

At Kawah Ijen on Java, after the seismic rise from January 17, 2020 until May 29, 2020, a white gas with a thin to moderate gas intensity was observed about 50-300 meters from the summit or 250-500 m from the surface of the lake. Observations to crater lake did not show any change in the color of the crater water lake, the temperature of which fluctuated in the range of 24.5 to 40.3 ° C from January to mid-May 2020.

Kawah ijen - Sentinel-2 bands 12,11,4 image from 05.25.2020 - one click to enlarge

Kawah ijen - Sentinel-2 bands 12,11,4 image from 05.25.2020 - one click to enlarge

The PVMBG reports for May 29,

- a total of 49 blast earthquakes, with an amplitude of 3-45 mm, and a duration between 14 and 85 seconds.

- 9 shallow volcanic earthquakes, with an amplitude of 3-18 mm

- and 4 episodes of non-harmonic tremor, with an amplitude of 34 to 46 mm and a duration between 105 and 534 sec.

Under current conditions, the potential threat of volcanic activity from Mount Ijen is made up of high concentrations of volcanic gases around the crater which can suddenly increase, due to the rising bursts of gas bubbles from the bottom of the lake.

Kawah Ijen - 29.05.2020 - an atmosphere of drama - and the place of disappearance of the minor - Doc. PVMBG and Detik news / Istimewa
Kawah Ijen - 29.05.2020 - an atmosphere of drama - and the place of disappearance of the minor - Doc. PVMBG and Detik news / Istimewa

Kawah Ijen - 29.05.2020 - an atmosphere of drama - and the place of disappearance of the minor - Doc. PVMBG and Detik news / Istimewa

It is recommended to the communities around G. Ijen and to visitors / tourists / miners so as not to approach the edge of the crater or descend and approach the bottom of the crater at the top of G. Ijen, and do not spend the night in the area of ​​G. Ijen within a radius of 1 km from the crater. - However, the activity level remains at 1 / normal.

Recommendation to follow, because according to Detik news, a sulfur miner is missing. It is suspected that it fell into the acid lake.

According to witnesses, at 12:30 p.m. WIB on May 29, 2020, Andik and Alimik, along with other miners, heard the sound of a boom or explosion at the bottom of the crater lake of Mount Ijen. The boom caused the water to rise from the lake and formed a wave that encroached about 3 meters from the edge of the crater.

 

Sources: PVMBG & Detik news / Banyuwangi

White island - 30.05.2020 / 07h20 local - Geonet webcam

White island - 30.05.2020 / 07h20 local - Geonet webcam

White Island - 05.31.2020 / 9.30 a.m. NZST - webcam crater floor Geonet screenshot

White Island - 05.31.2020 / 9.30 a.m. NZST - webcam crater floor Geonet screenshot

Whakaari / White Island remains in a high state of volcanic unrest.

The gas flow varied above background levels and was high during our last observation flight. Most of the other monitoring parameters remain within the range observed in the past 2 months.

The volcanic alert level remains at level 2; The aviation color code remains yellow.

 

Source: GeoNet

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