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Volcanic activity worldwide 5 Dec 2017: Fuego volcano, Klyuchevskoy, Shiveluch, Dukono, Agung, Reven...

mardi déc. 05, 2017 21:00 |

Map of today's active volcanoes
Map of today's active volcanoes
Satellite image of Klyuchevskoy volcano on  5 Dec 2017
Satellite image of Klyuchevskoy volcano on 5 Dec 2017
Satellite image of Klyuchevskoy volcano on  4 Dec 2017
Satellite image of Klyuchevskoy volcano on 4 Dec 2017
Eruption at Sheveluch volcano this morning (KVERT webcam)
Eruption at Sheveluch volcano this morning (KVERT webcam)
Satellite image of Shiveluch volcano on  4 Dec 2017
Satellite image of Shiveluch volcano on 4 Dec 2017
Satellite image of Dukono volcano on  5 Dec 2017
Satellite image of Dukono volcano on 5 Dec 2017
Deceivingly calm Agung volcano yesterday morning (image:  Øystein L. Andersen‏ @OysteinLAnderse / twitter)
Deceivingly calm Agung volcano yesterday morning (image: Øystein L. Andersen‏ @OysteinLAnderse / twitter)
Satellite image of Sabancaya volcano on  4 Dec 2017
Satellite image of Sabancaya volcano on 4 Dec 2017
Klyuchevskoy (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA EMISSIONS CONTINUING OBS VA DTG:05/1120Z
...4 Dec:
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20171204/2125Z FL200 EXTD E-NE REPORTED

Shiveluch (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA CONTINUOUSLY OBS ON SATELLITE IMAGERY OBS VA DTG:05/1120Z
...5 Dec:
A strong eruption occurred at the volcano yesterday morning around 9am local time (9pm last night GMT). An explosion and/or partial collapse at the active lava dome produced an eruption column that quickly rose to estimated 33,000 ft (10 km) altitude and drifted both NE and SE before dissipating over the North Pacific Ocean.
In addition, some small pyroclastic flows were generated that traveled approx. 1-2 km down the southwestern sector, followed by secondary mud flows (caused by melt-water) that reached up to about 3 km distance.
The eruption was preceded by near-constant steaming and moderate ash venting from the dome during the hours before which had started during the night. However overall, the event came after a long period of relative calm at the volcano. The activity at Shiveluch has been decreasing over the past months as heat emission data captured by satellites clearly show (as well as reduced frequency of larger explosions). Whether the eruption is a sign that activity might be on the rise again or just a temporary increase triggered by slowly accumulated over-pressure inside the upper conduit and lava dome remains open.
...4 Dec:
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20171204/2100Z FL330 EXTD E REPORTED OBS VA DTG:04/2100Z

Dukono (Halmahera): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA EMISSIONS TO FL070 EXT TO E OBS VA DTG:05/1630Z
...4 Dec:
Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA EMISSIONS TO FL070 EXT TO E.

Agung (Bali): At the surface, the explosive activity of the volcano has been declining during the past week and the ash and steam emissions have decreased considerably. Only a weak steam and gas plume has been observed since yesterday from the crater.
However, this apparent calm does not mean at all that the eruption is over. Rather that tts style is changing: it has entered a more effusive stage, with viscous lava accumulating in the summit crater as a new lava dome, which is what volcanologists have recently confirmed.
... [read more]

Fuego (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: OCNL EM

Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: RPRTS OF NEW VA EM
...4 Dec:
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: EM AT 04/2059Z

Sabancaya (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: SPORADIC PUFFS OF VA
...4 Dec:
Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: WEAK EMISSIONS OF VA AND GASES
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