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Volcanic activity worldwide 14 Feb 2016: Semeru volcano, Dukono, Sinabung, Momotombo

Sunday Feb 14, 2016 21:00 PM |

Eruption of Sinabung on the evening of 12 Feb 2016 (PVMBG)
Eruption of Sinabung on the evening of 12 Feb 2016 (PVMBG)
Pyroclastic flow at Semeru yesterday (image: Leopold Kennedy Adam ‏@LeopoldAdam / twitter)
Momotombo's eruption with pyroclastic flow yesterday
Momotombo's eruption with pyroclastic flow yesterday
Sinabung (Sumatra, Indonesia): Explosions from the summit crater continue to occur intermittently. An eruption in the evening (18:24 local time) of 12 Feb produced an ash plume that rose approx. 2 km above the summit.

Semeru (East Java, Indonesia): A pyroclastic flow (hot avalanche of fragmented volcanic material) occurred on the volcano's southern side yesterday morning, reaching 4.5 km length and producing an ash plume that rose to 26,000 ft (8 km) altitude. Darwin VAAC raised the aviation color code to RED.
Another, smaller flow seems to have occurred today.
The pyroclastic flow(s) were probably caused by sudden collapse of accumulated lava on the steep upper flank - inside the volcano's breached summit crater, a flat lava dome has been growing steadily during the past months and overspilling as viscous flow into the upper part of the ravine.

Dukono (Halmahera): The volcano continues to produce mild to moderate, but near-continuous ash emissions.
Darwin VAAC reported an ash plume at estimated 10,000 ft (3 km) altitude extending 55 nautical miles to the NE this morning.

Momotombo (Nicaragua): Another explosion occurred at the volcano yesterday at 10:40 local time. It produced a pyroclastic flow that descended the NE flank through the prominent ravine that also had channeled the recent lava flow from 2015.
The pyroclastic flow, surrounded by yellow-brown ash, was likely the result of collapse of older material at the crater during the explosion. Whether and in which proportion fresh magma is involved in the current activity is difficult to say without an analysis of the ash.
Glow continued to be visible at the crater during the night, suggesting that temperatures have increased and maybe magma is now at least close to the vents.

Volcano Activity Summary for 14 Feb 2016:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 24 May 2015)
Aso (Kyushu): steaming, occasional phreatomagmatic or strombolian explosions (updated 26 Oct 2015)
Bagana (Bougainville Island, Papua New Guinea): mild ash emissions (updated 26 Oct 2015)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 28 Nov 2015)
Bromo (East Java, Indonesia): intermittent ash-rich explosions, ash venting (updated 8 Feb 2016)
Colima (Western Mexico): intermittent vulcanian explosions (updated 12 Feb 2016)
Cotopaxi (Ecuador): vulcanian explosions (updated 16 Aug 2015)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 14 Feb 2016)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Danakil depression, Ethiopia): overflowing lava lake (updated 18 Jan 2016)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 10 Feb 2016)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 10 Feb 2016)
Kilauea (Hawai'i): new lava flow from vents on NE flank of Pu'u 'O'o (updated 28 Apr 2015)
Kliuchevskoi (Kamchatka): ash emissions, weak strombolian activity (updated 11 May 2015)
Manam (Papua New Guinea): large explosion on 31 July 2015 (updated 31 Aug 2015)
Masaya (Nicaragua): active lava lake in summit crater since mid Dec 2015 (updated 1 Feb 2016)
Momotombo (Nicaragua): intermittent vulcanian explosions (updated 14 Feb 2016)
Nevado del Ruiz (Colombia): intermittent ash emissions, strong degassing (updated 21 Sep 2015)
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)
Pacaya (Guatemala): intense spattering from intra-crater cone (updated 13 Jan 2016)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 29 Jan 2016)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): lava fountains, ash emissions from Tavurvur cone (updated 12 Sep 2014)
Reventador (Ecuador): lava flow on SW flank (updated 17 Aug 2015)
Sakurajima (Kyushu, Japan): seismic swarm, eruption warning (updated 12 Feb 2016)
Sangay (Ecuador): likely strombolian eruptions at summit crater (updated 13 Mar 2015)
Santiaguito (Guatemala): intermittent explosions from Caliente dome, strong degassing (updated 5 Feb 2016)
Semeru (East Java, Indonesia): growing lava dome, lava flow, strombolian activity (updated 14 Feb 2016)
Shiveluch (Kamchatka): growing lava dome (updated 29 Jan 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 14 Feb 2016)
Soputan (North Sulawesi, Indonesia): strong eruption 4-6 Jan 2016 (updated 6 Feb 2016)
Stromboli (Eolian Islands, Italy): weak strombolian activity at summit vents (updated 16 Apr 2015)
Suwanose-jima (Ryukyu Islands): strombolian explosions in Ontake crater (updated 1 Oct 2015)
Tungurahua (Ecuador): intermittent small ash emissions, small to moderate explosions (updated 21 Nov 2015)
Ubinas (Peru): sporadic vulcanian explosions (updated 16 Jan 2016)
Villarrica (Central Chile): small lava lake in summit crater (updated 12 May 2015)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 13 Nov 2015)
Zhupanovsky (Kamchatka, Russia): occasional explosions and ash emissions (updated 14 Feb 2016)

Eruption warning / minor activity:

Asama (Honshu): occasional small explosions since 16 June 2015 (updated 22 Jun 2015)
Augustine (Cook Inlet (SW Alaska))
Barren Island (Indian Ocean): weak thermal hot spot (updated 3 Feb 2016)
Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Bulusan (Luzon Island, Philippines): occasional phreatic explosions (updated 16 Jun 2015)
Canlaon (Central Philippines): occasional phreatic explosions (updated 11 Dec 2015)
Chirinkotan (Northern Kuriles, Russia): sporadic ash emissions (updated 28 Jul 2015)
Copahue (Chile/Argentina): seismic unrest, occasional ash venting (updated 3 Feb 2016)
Etna (Sicily, Italy): weak strombolian activity inside Voragine crater (updated 19 Apr 2014)
Heard (Australia, Southern Indian Ocean): strombolian activity, lava flow from Mawson Peak summit crater (updated 1 Feb 2016)
Karangetang (Siau Island, Sangihe Islands, Indonesia): rockfalls, glowing lava dome (updated 13 Jan 2016)
Kavachi (Solomon Islands): no eruption since 2007 (updated 16 Jun 2014)
Kerinci (Sumatra): seismic unrest, steam emissions (updated 5 Jun 2013)
Kick 'em Jenny (West Indies, Grenada): volcanic unrest, eruption warning (updated 24 Jul 2015)
Krakatau (Sunda Strait, Indonesia): steaming, seismic unrest (updated 15 Nov 2015)
Kuchinoerabu-jima (Ryukyu Islands): large explosive eruption on 29 May 2015 (updated 27 Mar 2015)
Lascar (Northern Chile): sudden explosion on 30 Oct 2015 (updated 31 Oct 2015)
Lopevi (Vanuatu): eruption warning (updated 16 Dec 2014)
MacDonald (Austral Islands,  ): steaming observed (updated 6 Feb 2016)
Mayon (Luzon Island, Philippines): steaming (updated 18 Dec 2014)
Merapi (Central Java, Indonesia): sporadic phreatic explosions (updated 21 Aug 2015)
Michael (United Kingdom, South Sandwich Is): unspecified activity detected as hot spot on satellite data (updated 3 Oct 2015)
Nevados de Chillán (Central Chile): short ash emission on 8 Jan 2016 (updated 1 Feb 2016)
Nyamuragira (DRCongo): active lava lake (updated 29 Nov 2014)
Ontake-san (Honshu): steaming, low seismic activity (updated 18 Dec 2014)
Papandayan (West Java): steaming (updated 6 May 2013)
Pavlof (Alaska Peninsula, USA): steaming, elevated seismic activity (updated 22 Dec 2014)
Poas (Costa Rica): phreatic explosions (updated 14 Oct 2014)
Rasshua (Central Kuriles)
Raung (East Java): intra-caldera eruption with lava flow and strombolian activity (updated 27 Aug 2015)
Rincón de la Vieja (Costa Rica): phreatic explosions from crater lake (updated 21 Sep 2014)
Sabancaya (Peru): steaming, elevated seismic activity (updated 11 Oct 2015)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): possible ash emission on 11 April (updated 9 Mar 2015)
San Miguel (El Salvador): intermittent ash emissions (updated 15 Jan 2016)
Sangeang Api (Indonesia): weak lava extrusion from summit crater (updated 11 Nov 2015)
Sirung (Pantar Island, Indonesia ): degassing (updated 10 Jul 2015)
Slamet (Central Java): steam emissions (updated 12 Jan 2015)
Telica (Nicaragua): degassing (updated 5 Dec 2015)
Turrialba (Costa Rica): sporadic ash emissions, weak crater glow (updated 3 Feb 2016)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)

Previous news
Eruption at Momotombo yesterday (image: INETER)
Saturday, Feb 13, 2016
Momotombo (Nicaragua): Two relatively small explosions occurred yesterday at the volcano, one at around 02:20 and another at 11:15 local time. ... [more]
Ash plume from an eruption at Sakurajima this morning
Friday, Feb 12, 2016
Sakurajima (Kyushu, Japan): The volcano continues to produce small to moderate vulcanian explosions at rates of a few per day, typically. ... [more]
Ash plume (its deposit on snow) from Zhupanovsky (image
Wednesday, Feb 10, 2016
Karymsky (Kamchatka): Explosions at the volcano have been relatively frequent recently and often intense enough to be detected on satellite imagery, monitored by Tokyo's VAAC (Volcanic Ash Advisory Center). ... [more]
Ash-rich strombolian eruption at Bromo yesterday
Monday, Feb 08, 2016
Bromo (East Java, Indonesia): The eruption continues in the form of intermittent small to moderate strombolian-type explosions and minutes-long phases of more or less vigorous ash venting alternating with strong degassing. Only few incandescent ejecta are being seen at night, but ash emissions are comparably intense and aviation color code of the volcano remains at orange. ... [more]
MODIS thermal signal from Alaid (MIROVA)
Saturday, Feb 06, 2016
Alaid (Northern Kuriles): The ´most recent eruption of the volcano, which began in October last year, can be regarded as over and the aviation color code was lowered back to green. ... [more]

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