Overblog
Editer l'article Suivre ce blog Administration + Créer mon blog

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

In general, volcanic activity can be described as low, or in the norms these days.

 

In the Kurile archipelago, moderate activity continues on December 18 and 19 in Ebeko; explosions generate ash plumes 2 to 2.5 km high, which extend 8 to 10 km to the northeast or east of the volcano.

The aviation code is orange, signal of danger of assignment for the low-level planes and a possible problem for the airport of Severo-Kurilsk.

Source: KVERT

Ebeko - photo archive 08.2017 / T. Kotenko. IVS FEB RAS

Ebeko - photo archive 08.2017 / T. Kotenko. IVS FEB RAS

A small explosion was detected on 18 December at 3:17 UTC / 17 December at 6:17 am AKST in Cleveland, by seismic and infrasonic systems. No clouds of eruption were observed by the satellites, nor visu, given the cloud cover.

Source: AVO

The crater and dome of Cleveland - photo Janet schaefer / AVO / 17.08.2017

The crater and dome of Cleveland - photo Janet schaefer / AVO / 17.08.2017

At Sinabung, an eruption on December 18 at 13:02 JKT, coupled with tremor for 303 seconds, generated pyroclastic flows of 2,500 meters on the east-southeast flank, and 3,500 meters on the southern flank.

Source: PVMBG, via Surono Mbah Rono.

Sinabung - Pyroclastic flow of 18.12.2017 / 13h02 JKT - Doc. PVMBG

Sinabung - Pyroclastic flow of 18.12.2017 / 13h02 JKT - Doc. PVMBG

At Agung, seismicity remains in the standards of the previous days, with this December 18, 58 earthquakes emission. Nighttime glow is observed at the summit crater

Sources: PVMBG, BNPB, webcams

Agung - nighttime glow - photo 18.12.2017 by Devay Natamanggala

Agung - nighttime glow - photo 18.12.2017 by Devay Natamanggala

Agung - 19.12.2017 / 6h38 - webcam Telkomsel

Agung - 19.12.2017 / 6h38 - webcam Telkomsel

In Sabancaya, the week of December 11 to 17 is characterized by a downward volcanic activity, with an average of 55 explosions per day. Seismicity is mainly dominated by volcanic earthquakes.

The main danger is the possibility of lahars, and justifies a prohibited area of ​​12 km radius.

Source: IG Peru, OVO, Ingemmet

Sabancaya - summary activity table week from 11 to 17.12.2017 - IGP / OVI / Ingemmet

Sabancaya - summary activity table week from 11 to 17.12.2017 - IGP / OVI / Ingemmet

Commenter cet article

Articles récents

Hébergé par Overblog