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Volcanic activity worldwide 31 Dec 2018: Santiaguito volcano, Fuego, Popocatépetl, Krakatau, Shivel...

Monday Dec 31, 2018 21:00 PM |

Map of today's active volcanoes
Map of today's active volcanoes
Satellite image of Shiveluch volcano on 31 Dec 2018
Satellite image of Shiveluch volcano on 31 Dec 2018
Anak Krakatau island seen 30 Dec 2018 (author unknown / Dongeng Geologi via facebook)
Anak Krakatau island seen 30 Dec 2018 (author unknown / Dongeng Geologi via facebook)
Comparison of Anak Krakatau's coast line seen on 29 Dec with a satellite image before the eruption (26 Nov 2018) (image: Sentinel-2 / ESA)
Comparison of Anak Krakatau's coast line seen on 29 Dec with a satellite image before the eruption (26 Nov 2018) (image: Sentinel-2 / ESA)
Satellite image of Sabancaya volcano on 31 Dec 2018
Satellite image of Sabancaya volcano on 31 Dec 2018
Shiveluch (Kamchatka): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 and is moving at 20 kts in SE direction.
The full report is as follows: VA EMISSIONS CONTINUING OBS VA DTG:31/1120Z
...31 Dec:
A volcanic ash plume up to estimated 19000 ft (5800 m) altitude (flight level 190) and moving at 20 kts in SE direction was reported by Volcanic Ash Advisory Center Tokyo (VAAC).
The full report is as follows: VA EMISSIONS CONTINUING OBS VA DTG:30/2320Z

Dukono (Halmahera): (30 Dec) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA TO FL070 EXT TO ESE LAST OBS AT 30/0900Z

Krakatau (Sunda Strait, Indonesia): A fresh aerial image from Anak Krakatau has appeared on the very active Volcanoes and Volcanism group on facebook:
it shows in more detail what the 29 Dec satellite image already confirmed: the island of Anak Krakatau has now the shape of a 270 deg almost closed crescent, with a water-filled crater in the center where once the 330 m tall summit cone stood (which collapsed on 22 Dec causing the tsunami).
... [read more]
...30 Dec:
A new high-resolution satellite image taken yesterday allows an update on the dramatic effects the 22 Dec collapse has had on Anak Krakatau island:
It shows that actually not all, but most of the summit cone is now missing as well as significant parts of the western and southern shores previously formed by young lava deltas. On the other side, there has been a significant enlargement of the coast on the eastern shore.
... [read more]

Popocatépetl (Central Mexico): (31 Dec) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS HAS DISP

Santiaguito (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EM AT 1300Z.

Fuego (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: CONT VA EMS.
...31 Dec:
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS HAS DISP

Reventador (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 17000 ft (5200 m) altitude or flight level 170 .
The full report is as follows: PSBL ONGOING VA EMS
...31 Dec:
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS HAS DISP

Sabancaya (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: UNABLE TO DETECT
...31 Dec:
Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: SPORADIC EMISSIONS OF VA

Volcano Activity Summary for 31 Dec 2018:

Currently erupting:

Ambrym (Vanuatu): several lava lakes, currently flank eruption inside the caldera near Marum (updated 17 Dec 2018)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 28 Nov 2017)
Ebeko (Paramushir Island): intermittent ash eruptions (updated 7 Oct 2018)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Danakil depression, Ethiopia): active lava lake in the south crater of the summit caldera (updated 12 Oct 2018)
Etna (Sicily, Italy): steam and ash emissions from Bocca Nuova (updated 30 Dec 2018)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 6 Jun 2018)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Jul 2018)
Krakatau (Sunda Strait, Indonesia): Major eruption ends (updated 31 Dec 2018)
Masaya (Nicaragua): active lava lake ini summit crater (updated 12 Jul 2016)
Merapi (Central Java, Indonesia): growing lava dome in summit crater, incandescent rockfalls from dome (updated 29 Dec 2018)
Nevados de Chillán (Central Chile): sporadic mild to moderate ash emissions (updated 31 Oct 2018)
Nyiragongo (DRCongo): new vent on crater floor (updated 9 Sep 2016)
Pacaya (Guatemala): strombolian activity in summit crater, lava flow effusion (updated 29 Apr 2018)
Planchón-Peteroa (Central Chile and Argentina): Continuous mild ash emissions (updated 19 Dec 2018)
Popocatépetl (Central Mexico): intermittent explosions of varying size, ash emissions (updated 16 Dec 2018)
Reventador (Ecuador): lava flow on SW flank (updated 1 Dec 2017)
Sabancaya (Peru): frequent moderate explosions, intense ash emissions (updated 1 Dec 2017)
Sakurajima (Kyushu, Japan): Resumed explosions (updated 20 Dec 2018)
Santiaguito (Guatemala): intermittent strong explosions from growing Caliente dome (updated 9 May 2017)
Semeru (East Java, Indonesia): growing lava dome, mild strombolian activity in summit crater (updated 10 Oct 2016)
Shiveluch (Kamchatka): Powerful explosion, Aviation code to red (updated 30 Dec 2018)
Stromboli (Eolian Islands, Italy): intense strombolian explosions, occasional lava overflows from vents (updated 26 Dec 2018)
Turrialba (Costa Rica): sporadic mild ash emissions (updated 13 Nov 2018)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 16 Dec 2017)

Eruption warning / minor activity:

Agung (Bali): degassing, sporadic small to moderate explosions (updated 30 Dec 2018)
Bagana (Bougainville Island, Papua New Guinea): intermittent mild ash emissions (updated 8 Dec 2018)
Barren Island (Indian Ocean): strombolian activity, lava flow effusion on northern flank (updated 16 Dec 2018)
Cleveland (Aleutian Islands, Alaska): 80 m diameter circular lava flow observed in summit crater, low seismic unrest (updated 29 Dec 2018)
Karangetang (Siau Island, Sangihe Islands, Indonesia): Significant increase in activity; alert level raised (updated 22 Dec 2018)
Kuchinoerabu-jima (Ryukyu Islands): Minor eruption (updated 23 Oct 2018)
Mayon (Luzon Island, Philippines): intermittent small explosions, degassing (updated 15 Nov 2018)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the pit crater in the northern main crater (updated 16 Dec 2018)
Sangeang Api (Indonesia): New small ash emissions (updated 15 Oct 2018)
Soputan (North Sulawesi, Indonesia): Volcano slowly calming down (updated 19 Dec 2018)
Veniaminof (Alaska Peninsula, USA): Eruption eases, color code back to orange (updated 20 Dec 2018)

Previous news
Map of today's active volcanoes
Sunday, Dec 30, 2018
Etna (Sicily, Italy): The volcano remains highly restless. Although no more lava is being erupted right now, strong gas and dense ash emissions continue from the Bocca Nuova crater as a sign that magma is close to the surface. ... [more]
Map of today's active volcanoes
Thursday, Dec 27, 2018
Etna (Sicily, Italy): The decreasing trend in surface and earthquake activity on and around Etna continues and there is little to nothing left of the vigorous flank eruption that had started on Christmas Eve (24 Dec 2018). However, the volcano is far from quiet and there are indications that more and potentially more dangerous activity could be in the making. ... [more]
Map of today's active volcanoes
Wednesday, Dec 26, 2018
Stromboli (Eolian Islands, Italy): Following an increase in activity detected at the volcano, Italian Civil Protection raised the alert level from "green" to "yellow", pointing out that the volcano is in "an unstable situation" and should be monitored more closely. ... [more]

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