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Volcanic activity worldwide 15 Dec 2014: Sinabung volcano, Fogo, Sakurajima

Monday Dec 15, 2014 21:00 PM |

MODIS hot spots at Fogo volcano during the past 2 days - note the strong decrease compared to the image for the past 7 days(MODVOLC, Univ. Hawaii)
MODIS hot spots at Fogo volcano during the past 2 days - note the strong decrease compared to the image for the past 7 days(MODVOLC, Univ. Hawaii)
Strong, lava-rich explosion of Sakurajima on Friday
Strong, lava-rich explosion of Sakurajima on Friday
Pyroclastic flow on Sinabung yesterday
Pyroclastic flow on Sinabung yesterday
Fogo (Cape Verde): Lava emission has slowed down a lot, sign the eruption could be over soon.
For more than 5 days, no significant explosive activity and only minor lava effusion was observed at the vents. On the other hand, magmatic SO2 (sulfur dioxide) emissions remain high and even increased from 7,500 to 9,000 tons per day. That could mean that a new batch of magma is on the rise and lead to a rejuvenation of the volcanic activity. The next days will probably tell.
The lava front stopped 600 m from what was once Bangaeira village, at 3.5 km distance from the next inhabited place, Fernao Gomes village, which could be at risk if the lava flows resume from there. On the other hand, if the old channels and tubes have now been blocked, which is likely the case due to lack of supply, new flows would need to re-start from the source and travel all the way to there first. In other hand, the threat to villages on the eastern coast now seems minimal.

Sakurajima (Kyushu, Japan): The volcano has been relatively active recently. Lava-rich explosions can often be seen even on webcams as the screenshot from an explosion on Friday shows. (see timelapse on facebook / Sakurajima volcano 桜島昭和火口)

Sinabung (Sumatra, Indonesia): Eruptions continue. The volcano extrudes a viscous lobe of lava on its upper steep southern flank. Regular pyroclastic flows of small to moderate size occur as result of partial collapses.
Ash plumes were reported to 20,000 ft (6 km) altitude.

Volcano Activity Summary for 15 Dec 2014:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 14 Aug 2013)
Aso (Kyushu): intense strombolian activity from 2 vents (updated 12 Dec 2014)
Bagana (Bougainville Island, Papua New Guinea): ash emissions, lava dome growth (updated 10 Nov 2014)
Bardarbunga (Iceland): lava lake, sporadic fountains, lava flow (updated 18 Sep 2014)
Barren Island (Indian Ocean): intermittent activity, likely strombolian-type and/or lava flows (updated 4 Feb 2014)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 4 Nov 2014)
Colima (Western Mexico): new lava flow on SW flank (updated 30 Nov 2014)
Copahue (Chile/Argentina): ash venting (updated 4 Dec 2014)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 25 Nov 2014)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Ethiopia): active lava lake in northern pit crater, active hornito with intermittend flow in southern crater (updated 11 Jan 2013)
Fogo (Cape Verde): weak lava effusion, strong SO2 release (updated 15 Dec 2014)
Fuego (Guatemala): strombolian explosions from summit crater, intermittent lava flows (updated 12 Dec 2014)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 14 Nov 2014)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 4 Oct 2014)
Kilauea (Hawai'i): new lava flow from vents on NE flank of Pu'u 'O'o (updated 13 Aug 2013)
Manam (Papua New Guinea): degassing, occasional ash venting (updated 28 Aug 2013)
Marapi (Western Sumatra, Indonesia): sporadic explosions (updated 27 Mar 2014)
Nasu (Honshu)
Nishino-shima (Volcano Islands, Japan): growing island (updated 3 Dec 2014)
Nyamuragira (DRCongo): active lava lake (updated 29 Nov 2014)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 26 Feb 2014)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Poas (Costa Rica): phreatic explosions (updated 14 Oct 2014)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): lava fountains, ash emissions from Tavurvur cone (updated 12 Sep 2014)
Raung (East Java): mild strombolian activity in summit crater (updated 2 Dec 2014)
Reventador (Ecuador): lava flow on southwestern flank, intermittent explosions (updated 7 Dec 2014)
Sakurajima (Kyushu, Japan): ash venting, intermittent explosions (updated 15 Dec 2014)
Sangeang Api (Indonesia): growing lava dome & lava flow (updated 7 Jul 2014)
Santiaguito (Guatemala): generation of hot lahars (updated 12 Dec 2014)
Semeru (East Java, Indonesia): growing lava dome, lava flow, strombolian activity (updated 26 Nov 2014)
Shiveluch (Kamchatka): growing lava dome, incandescent avalanches, occasional explosions (updated 5 Dec 2014)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 15 Dec 2014)
Slamet (Central Java): intense strombolian explosions (updated 13 Sep 2014)
Suwanose-jima (Ryukyu Islands): strombolian activity in summit crater (updated 14 Nov 2014)
Tungurahua (Ecuador): moderate to strong strombolian explosions from central crater (updated 25 Sep 2014)
Ubinas (Peru): degassing, sporadic small explosions and ash venting (updated 11 Sep 2014)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)
Zhupanovsky (Kamchatka, Russia): degassing, last eruption ended mid Oct 2014 (updated 30 Nov 2014)

Eruption warning / minor activity:

Augustine (Cook Inlet (SW Alaska))
Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Chirpoi (Kurile Islands, Russia): hot spot visible on satellite imagery (updated 2 Dec 2014)
Etna (Sicily, Italy): sporadic weak ash emissions from New SE crater (updated 19 Apr 2014)
Heard (Australia, Southern Indian Ocean): possibly lava lake in summit crater (updated 5 Dec 2014)
Karangetang (Siau Island, Sangihe Islands, Indonesia): incandescent lava dome (updated 24 Oct 2014)
Kavachi (Solomon Islands): no eruption since 2007 (updated 16 Jun 2014)
Kerinci (Sumatra): seismic unrest (updated 5 Jun 2013)
Kirishima (Kyushu): degassing, alert lowered (updated 25 Oct 2014)
Krakatau (Sunda Strait, Indonesia): degassing (updated 31 Mar 2014)
Kuchinoerabu-jima (Ryukyu Islands): explosion on 3 Aug 2014 (updated 5 Dec 2014)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 13 Sep 2014)
Mayon (Luzon Island): extrusion of viscous lava flow, warning of possible explosive eruption (updated 5 Dec 2014)
Medvezhia (Kurile Islands, Russia): strong steaming, thermal anomaly (updated 17 Jan 2013)
Monowai (Kermandec Islands, New Zealand): frequent submarine eruptions, last confirmed during Oct 2014 (updated 14 Nov 2014)
Nevado del Ruiz (Colombia): degassing, occasional ash emissions (updated 2 Dec 2014)
Ontake-san (Honshu): strong phreatic (?) explosion on 27 Sep 2014 (updated 14 Nov 2014)
Pacaya (Guatemala): weak strombolian activity (updated 14 Nov 2014)
Papandayan (West Java): strong hydrothermal activity, increased seismicity (updated 6 May 2013)
Pavlof (Alaska Peninsula, USA): steaming, elevated seismic activity (updated 8 Dec 2014)
Piton de la Fournaise (La Réunion): short-lived eruption during 21-22 June (updated 4 Dec 2014)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 6 Nov 2014)
Rasshua (Central Kuriles)
Rincón de la Vieja (Costa Rica): phreatic explosions from crater lake (updated 21 Sep 2014)
Sabancaya (Peru): steaming, elevated seismic activity (updated 10 Nov 2014)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): possible ash emission on 11 April (updated 12 Apr 2014)
San Miguel (El Salvador): ash emissions, small explosions, increasing tremor (updated 2 Sep 2014)
Sangay (Ecuador): degassing (updated 24 May 2013)
Shishaldin (United States, Aleutian Islands): mild explosive activity, intermittent more intense phases (updated 3 Dec 2014)
Stromboli (Eolian Islands, Italy): weak strombolian activity at summit vents (updated 12 Dec 2014)
Turrialba (Costa Rica): occasional ash emissions (updated 9 Dec 2014)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)

Vorig nieuws

Saturday, Dec 13, 2014
Batu Tara (Sunda Islands, Indonesia): (12 Dec) During our recent expedition to Batu Tara, we witnessed a spectacular increase in activity during the night 3-4 Nov, culminating in a small pyroclastic flow triggered by a collapsing lava fountain and increased effusive activity from the dome. Andi and Till managed to capture the event on photos. ... [meer...]
Strong degassing and small explosions from Stromboli's summit vents yesterday (INGV Catania)
Friday, Dec 12, 2014
Stromboli (Eolian Islands, Italy): Activity has remained low - there is no lava effusion. At the vents in the summit craters, there are occasional small explosions and strong degassing. ... [meer...]
Glow and ash emissions from Aso's Nakadake crater
Tuesday, Dec 09, 2014
Aso (Kyushu): Mild strombolian activity and ash emissions continue at Nakadake crater. ... [meer...]
The lava flow of Fogo passing near a destroyed building (image: INVOLCAN / @involcan / twitter)
Monday, Dec 08, 2014
Fogo (Cape Verde): The second village Bangaeira in the path of the rapidly advancing lava flow has been destroyed within only a few hours. ... [meer...]
Lava flow from Fogo in Portela (Asociación Canaria de Volcanología / facebook)
Sunday, Dec 07, 2014
Fogo (Cape Verde): (7 Dec) The eruption intensified according to news reports on Saturday, and destroyed most of what still had been left of Portela. The new lava flow advanced at 30 meters per hour and consumed another 20 houses and the sports center. ... [meer...]

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