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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, #Sismologie
Sheveluch - Copernicus image from 13.04.2019 - one click to enlarge

Sheveluch - Copernicus image from 13.04.2019 - one click to enlarge

The explosive-extrusive eruption of Sheveluch continues: on April 23, the KVERT reports an ash plume at 4,000-4,500 meters asl, drifting northeast over 50 km.

Copernicus shows a thinning on the top of the volcano, which allows to see the infra-red signature of ongoing lava flow.

Moderate thermal anomalies are recorded by Mirova, of VRP between 13 and 69 MW.

 

Source: KVERT

 Sheveluch - image Sentinel-2 nat Colors from 23.04.2019

 Sheveluch - image Sentinel-2 nat Colors from 23.04.2019

Sheveluch - thermal anomalies on 24.04.2019 / 01h55 - Doc. Mirova_MODIS_Latest10NTI

Sheveluch - thermal anomalies on 24.04.2019 / 01h55 - Doc. Mirova_MODIS_Latest10NTI

In Taal, in the Philippine archipelago, the number of volcanic earthquakes is maintained in recent days to about 10 daily episodes.

The Phivolcs recorded for April 20 : 11 episodes, for April 21: 9 episodes, for April 22 : 10 episodes and for April 23 : 9 episodes.

For field measurements, refer to those of 18 April.

The alert level remains within the scope of the Level 1 / Non-imminent hazardous eruption.

Philippines - earthquake on the island of Samar - Doc. Phivolcs earthquakes

Philippines - earthquake on the island of Samar - Doc. Phivolcs earthquakes

Note that a series of earthquakes hits the Philippines. Among the most important, an earthquake of magnitude 6.1 on 22 April on Castillejos / Zambales is responsible for 11 dead and many wounded; another of magnitude 6.4 on April 23, on the island of Samar, stands out among many aftershocks

 

Source: Phivolcs

Zavodovski island - Earthquake M6,0 on 22.04.2019 / 14:49 UTC depth 100 km - Doc. EMSC

Zavodovski island - Earthquake M6,0 on 22.04.2019 / 14:49 UTC depth 100 km - Doc. EMSC

A magnitude 6.0 earthquake was recorded on April 22, 2019 at 14:49 UTC, and a depth of 100 km in the South Sandwich Islands, near Zavodovski Island.

This island is constituted by a basaltic stratovolcano, Mount Curry, decentered towards the west; two cracks extend on the eastern flanks and a lava platform is located on the east coast.

Its first eruption was observed in 1819, and the last activity dates from 2016 (30,03,2016 - 16,05,2016)

 

Source: EMSC

 The South Sandwich Islands volcanic arc - Doc. Google Earth - one click to enlarge

 The South Sandwich Islands volcanic arc - Doc. Google Earth - one click to enlarge

Zavodovski island - image Sentinel-2 nat. colors from 14.04.2019 - one click to enlarge

Zavodovski island - image Sentinel-2 nat. colors from 14.04.2019 - one click to enlarge

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