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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 : #Actualités volcaniques
Rincon de La Vieja - eruption of 23.06.2017 / 14h56 - pictures Allan Garita and Felipe Fonseca - Ovsicori

Rincon de La Vieja - eruption of 23.06.2017 / 14h56 - pictures Allan Garita and Felipe Fonseca - Ovsicori

A phreatomagmatic eruption at the Rincon de La Vieja produced an eruptive plume on 23.06.2017 at 14:56 local, which rose to 2,000 meters above the crater, ie 3916 meters above sea level. The eruption lasted over one minute, and produced lahars on the north slope of the volcano.
 
Source: Ovsicori & RSN

Rincon de La Vieja - eruption of 23.06.2017 / 14h56 - photo RSN

Rincon de La Vieja - eruption of 23.06.2017 / 14h56 - photo RSN

The Bogoslof  has changed to a red aviation code, following a significant explosive eruption this 24 June at 0h49 UTC / 23 June 16h49 AKDT.
It produced a plume rising to about 36,000 ft, and was accompanied by a strong seismicity, flashes and infra-sons. The eruption lasted 10 minutes.
The satellites located the volcanic cloud at 1:30 UTC, at 36,000 ft, moving northeast.

Update  :The event at 00:49 UTC was followed by five additional eruptive bursts at 3:18-3:24 UTC, 4:13-4:21 UTC, 5:04-5:12, 5:52-5:55 and 8:40-8:44 UTC. High clouds have moved into the region since the initial explosion and has obscured observations of ash clouds from these later events. The meteorological cloud deck top is at about 28,000 to 30,000 ft asl, and none of the explosive events has produced a cloud that have risen above it. These explosions were also detected in infrasound data, but no lightning strokes were detected by the World Wide Lightning Location Network (WWLLN). 
 
Source: AVO

Bogoslof - picture of 22.06.2017 / 13h courtesy of Dave Eilertsen via AVO

Bogoslof - picture of 22.06.2017 / 13h courtesy of Dave Eilertsen via AVO

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