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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

Some brief news of Indonesian volcanoes

- The Sinabung, in alert level IV, presented around 8:16 on November 20 a beautiful white plume rising to 3,200 meters, drifting little under a light wind to the SSW. A tremor of 275 sec. has been registered by the PVMBG.

- At the Agung, in alert level III, the situation is maintained without eruption, and with a low seismicity.

- On the rest of the archipelago, the PVMBG informs 18 volcanoes in alert level II.

A mention for Bromo, at this alert level for a year, greeted this anniversary with a beautiful plume of steam.

At Merapi / Java, a degassing is reported since the first week of November. On Sunday, November 19, the BPPTKG reported a thick white outgassing to the west and dome zones of temperatures between 83.3 and 122.5 ° C.

 

led_red_blinkG. SinabungCAUTION02-06-2015led_orange_blinkG. GreatStandby29-10-2017led_yellowG. Ili LewotolokAlert07-10-2017led_yellowG. Banda ApiAlert05-04-2017led_yellowG. DempoAlert05-04-2017led_yellowG. BromoAlert20-10-2016led_yellowG. RinjaniAlert27-09-2016led_yellowG. LokonAlert22-08-2016led_yellowG. SoputanAlert21-04-2016led_yellowG. KarangetangAlert16-03-2016led_yellowG. GamalamaAlert10-03-2015led_yellowG. SangeangapiAlert17-06-2014led_yellowG. RokatendaAlert07-04-2014G. MotherAlert10-12-2013led_yellowG. GamkonoraAlert01-07-2013led_yellowG. SemeruAlert02-05-2012led_yellowG. Anak KrakatauAlert26-01-2012led_yellowG. MarapiAlert03-08-2011led_yellowG. DukonoAlert15-06-2008led_yellowG. KerinciAlert09-09-2007
 

 Sinabung - 20.11.2017 / 8:20 WIB - photo Sadrah Peranginangin

Sinabung - 20.11.2017 / 8:20 WIB - photo Sadrah Peranginangin

Agung - summary histogram of seismicity as of 19.11.2017 - doc.Magma Indonesia

Agung - summary histogram of seismicity as of 19.11.2017 - doc.Magma Indonesia

Bromo - 20.11.2017 in the morning - photo Oystein Lund Andersen

Bromo - 20.11.2017 in the morning - photo Oystein Lund Andersen

Merapi - 09.11.2017 - photo BPPTKG

Merapi - 09.11.2017 - photo BPPTKG

Merapi - images of the summit dome and temperature recording with thermal camera - Doc.BPPTKG 19.11.2017 / 4h50

Merapi - images of the summit dome and temperature recording with thermal camera - Doc.BPPTKG 19.11.2017 / 4h50

In Fuego, Insivumeh reports a white degassing plume rising to 4.300 meters asl. on November 19 at 13:32, before drifting west and southwest, as well as 6-8 weak to moderate explosions per hour; they are accompanied by gray ash emissions at 4,500-4,700 meters asl.

Ashes are reported on Panimache I and II, Morelia, and Santa Sofía.

Sources: Insivumeh & Conred

 Fuego - 19.11.2017 / 13h32 - Insivumeh photo

 Fuego - 19.11.2017 / 13h32 - Insivumeh photo

Details on the state of the Öraefajökull:
According to a series of Nasa Landsat 8 images, the birth of the ice cauldron in the caldera could be dated between October 26 and early November.
The situation remains under investigation, and during a meeting between the Civil Protection and the local residents, it was clarified that the lapse of time between a possible eruption and the appearance of a jökulhlaup / ice breakup would be relatively short, of the order of 20 minutes.
 
Sources: IMO, and tweets from Evgenia Ilyinskaya.

Ice-cauldron of the Öraefajökull, respectively 1, 10 and 17.11.2017 - Landsat Nasa images via Evgenia Ilyinskaya. - a click to enlarge
Ice-cauldron of the Öraefajökull, respectively 1, 10 and 17.11.2017 - Landsat Nasa images via Evgenia Ilyinskaya. - a click to enlarge
Ice-cauldron of the Öraefajökull, respectively 1, 10 and 17.11.2017 - Landsat Nasa images via Evgenia Ilyinskaya. - a click to enlarge

Ice-cauldron of the Öraefajökull, respectively 1, 10 and 17.11.2017 - Landsat Nasa images via Evgenia Ilyinskaya. - a click to enlarge

Vedurstofan increases monitoring as a precautionary measure, with the movement of the ash detection radar towards the Öraefajökull volcano - Photo Njall Reynisson 19.11.2017

Vedurstofan increases monitoring as a precautionary measure, with the movement of the ash detection radar towards the Öraefajökull volcano - Photo Njall Reynisson 19.11.2017

Seismicity under Vatnajökull, with small earthquakes under Bardarbunga and Öraefajökull of Magnitude near max M1 - doc. 20.11.2017 / 7:55 am / IMO

Seismicity under Vatnajökull, with small earthquakes under Bardarbunga and Öraefajökull of Magnitude near max M1 - doc. 20.11.2017 / 7:55 am / IMO

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