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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
 Poas - eruption on the 08.02.2019 / 10h10 - webcam RSN
 Poas - eruption on the 08.02.2019 / 10h10 - webcam RSN
 Poas - eruption on the 08.02.2019 / 10h10 - webcam RSN

Poas - eruption on the 08.02.2019 / 10h10 - webcam RSN

In Costa Rica, Poas experienced some eruptions in the morning of 8 February.

Four eruptions are reported between 5 and 7 o'clock, accompanied by plumes between 100 and 200 meters above the active crater.

At 10h10, a new eruption, with a black plume that rose straight 200 meters above the crater, lasting 2 minutes, is observed by the Ovsicori and the RSN.

At 10:47, the eruptive activity is marked by a plume rising 100 meters above the crater.

At 12:44, an eruption lasting 2 minutes was accompanied by a plume at a height of 200 meters above the crater.

 

Sources: Ovsicori & RSN

Etna - ash emission from the northeast crater 08.02.2019 - photo from Linguaglossa / Salvatore Lo Giudice

Etna - ash emission from the northeast crater 08.02.2019 - photo from Linguaglossa / Salvatore Lo Giudice

At Etna, violent strombolian explosions are observed at the northeast crater from 8:40 am on February 8, accompanied by a dense ash plume pushed by the wind blowing from the north to an east and south-east sector.

The risk unit at Fontanarossa Catania Airport, a moment in a state of pre-alert, allowed all the air movements, given the direction taken by the ashes.

 

Sources: Salvatore Lo Giudice, Gio Giusa, Guide Vulcanologiche Etna North and Mobilita / Catania

Etna and its plume seen from Capotaormina, 08.02.2019. - photo Gio Giusa

Etna and its plume seen from Capotaormina, 08.02.2019. - photo Gio Giusa

In Chile, the Villarica has presented these 7 and / or February Strombolian explosions.

On February 7, ballistic projections were observed on the webcam at 29 meters above the crater rim; On February 8th at 4:57 am, incandescent bombs were reported on the north-east upper flank.

The dynamics of the lava lake remain fluctuating, and the POVI reports similar episodes on January 3 and 24.

 

Sources: POVI & Sernageomin

Villarica - Strombolian activity from 07.02.2019 / 22h17 loc. - Doc. Povi

Villarica - Strombolian activity from 07.02.2019 / 22h17 loc. - Doc. Povi

At Merapi, on the island of Java, the activity of the summit dome continues with regular glowing avalanches and sometimes observed over a long distance.

Some surveys: on February 7th, at 18:28 WIB, the episode lasted 215 sec, for an amplitude of 70, and an avalanche length of ± 2 km in amont of Kali Gendol; On February 9, at 4:34 WIB, the episode lasted 130 sec. for an avalanche of 1,300 meters long.

The activity level remains at 2 / waspada

 

Sources: BPPTKG & PVMBG

 Merapi - 07.02.2019 / 18:29 WIB - Doc. BPPTKG

 Merapi - 07.02.2019 / 18:29 WIB - Doc. BPPTKG

 Merapi 06.02.2019 / 4:34 WIB - Doc. BPPTKG

 Merapi 06.02.2019 / 4:34 WIB - Doc. BPPTKG

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