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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, #Sismologia
Sinabung - 13.04.2022 / 11:42 WIB - PVMBG / Magma Indonesia webcam - one click to enlarge

Sinabung - 13.04.2022 / 11:42 WIB - PVMBG / Magma Indonesia webcam - one click to enlarge

Sinabung activity continues, still at level 3 / siaga.
A plume of gas, sometimes embellished with ash, overcomes the volcano from 50 to 400 meters.
The seismicity of the week of April 6 to 12 is characterized by:
- 4 collapse earthquakes
- 32 blast/emission earthquakes
- 30 hybrid earthquakes
- 2 volcanic earthquakes
- 7 local & 38 distant tectonic earthquakes
- 4 earthquakes linked to lahars.

Sinabung - seismicity of the last 4 months - Doc. PVMBG / Magma Indonesia - one click to enlarge

Sinabung - seismicity of the last 4 months - Doc. PVMBG / Magma Indonesia - one click to enlarge

Communities and visitors/tourists should not carry out activities in the villages that have been relocated, as well as within a radial radius of 3 km from the summit of Mount Sinabung, as well as a sectoral radius of 5 km for the south- east sector, and 4 km for the east-north and west sector.
In the event of ash rain, people are advised to wear masks when leaving the house to reduce the health impact of volcanic ash. Securing drinking water installations and cleaning the roofs of houses from heavy volcanic ash so that they do not collapse.
People who live and live near the rivers that originate at Mount Sinabung should remain alert to the dangers of lahars.

 

Sources: PVMBG, Magma Indonesia

Semeru - 13.04.2022 / 06:07 WIB - PVMBG / Magma Indonesia webcam

Semeru - 13.04.2022 / 06:07 WIB - PVMBG / Magma Indonesia webcam

In Semeru, for the week of April 6 to 12, the PVMBG reports:
- 605 eruption earthquakes
- 2 collapse earthquakes
- 29 emission and blast earthquakes
- 3 harmonic episodes
- 2 volcanic earthquakes
- 21 lesser tectonic earthquakes
- 3 earthquakes linked to lahars

Semeru - weekly activity summary from April 6 to 12, 2022 - Doc. PVMBG

Semeru - weekly activity summary from April 6 to 12, 2022 - Doc. PVMBG

Eruptive activity continues with a level 3 / siaga. It is advised not to carry out any activity in the southeastern sector along Besuk Kobokan, up to 13 km from the summit (the center of the eruption). Beyond this distance, the community does not conduct activities within 500 meters of the bank (river edge) along Besuk Kobokan due to the potential for expansion of hot clouds and lava flows. lava up to a distance of 17 km from the summit.
Not to move within a radius of 5 km from the crater/summit of Mount Semeru, as the area is likely to undergo incandescent projections.
And to remain aware of the potential for hot cloud avalanches (APGs), lava avalanches and lahars along the rivers/valleys that originate at the summit of Mount Semeru, especially along Besuk Kobokan, Besuk Bang, Besuk Kembar and Besuk Sat as well as potential lahars in the rivers a small river which is a tributary of Besuk Kobokan.

 

Source: PVMBG, Magma Indonesia

Reykjanes Peninsula - location and magnitudes of earthquakes on 13.04.2022 / 06:20 - Doc. IMO
Reykjanes Peninsula - location and magnitudes of earthquakes on 13.04.2022 / 06:20 - Doc. IMO
Reykjanes Peninsula - location and magnitudes of earthquakes on 13.04.2022 / 06:20 - Doc. IMO

Reykjanes Peninsula - location and magnitudes of earthquakes on 13.04.2022 / 06:20 - Doc. IMO

A seismic swarm began on April 12 at around 9:20 p.m. in the Reykjanes Peninsula, with a magnitude 3.9 earthquake, followed by several smaller earthquakes, measuring near magnitude 3. Earthquake activity has been almost continuous since the large quake. earthen.
ENSu has heard that the largest earthquake was observed in Reykjavík, so it can be assumed that it was well felt in many parts of the Reykjanes peninsula.
The crisis follows the pattern of activity that has characterized the peninsula over the past two years, as activity jumped between areas.

 

Source: IMO

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