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Volcanic activity worldwide 29 Feb 2016: Dallol volcano, Sinabung, Kirishima, Momotombo

Monday Feb 29, 2016 21:00 PM |

Evolution of the fumarole field of Iwo crater between Dec 2015 and Feb 2016 (JMA)
Evolution of the fumarole field of Iwo crater between Dec 2015 and Feb 2016 (JMA)
Explosion from Sinabung on 25 Feb (image: Endro Lewa / facebook)
Explosion from Sinabung on 25 Feb (image: Endro Lewa / facebook)
Eruption of Momotombo volcano last week (21 Feb, image: Richard Roscoe)
Eruption of Momotombo volcano last week (21 Feb, image: Richard Roscoe)
Green and yellow salt pond at Dallol (image: Enku Mulugheta)
Green and yellow salt pond at Dallol (image: Enku Mulugheta)
Kirishima (Kyushu): A "near-crater" warning was issued for the volcano by JMA (Japan Meteorological Agency), in particular for the Iwo crater where an increase in seismic activity, fumarole temperatures and degassing (including poisonous H2S) in an area about 100x100 m wide has been observed over the past months.
The observed signs of volcanic unrest are considered weak and no eruption is expected in the near future, but the risk of (always possible) sudden, steam-driven explosions, which could affect an area of up to 1 km radius, needs to be considered elevated. The site, a popular excursion destination and easily accessible by road, has been closed for public access now. A similar warning had already been issued in October 2014 and lifted again in May 2015.

Sinabung (Sumatra, Indonesia): Over the past days, activity at the volcano seems to have picked up. The frequency and size of explosions from the summit have increased and generated several ash plumes that rose up to approx 3 km height above the summit.
In addition, collapses of parts of the lava lobe generated small to moderate pyroclastic flows that traveled up to 3 km down on the ESE side. One of them on Saturday reached again the (already mostly destroyed and abandoned) village of Simacem on the ESE flank at only 3 km distance from the crater.
... [read more]

Momotombo (Nicaragua): The volcano continues to produce on average 2-3 vulcanian-type explosions per day. Some of them seem to generate small pyroclastic flows.
Don't miss out the spectacular video our friend Richard Roscoe (www.photovolcanica.com) took last week (attached picture):


Dallol (Danakil desert, Ethiopia): One of our groups visited Dallol last week during our recent Danakil volcano expedition. The hydrothermal activity was observed to be very intense, with many colorful ponds and hot springs.
Expedition leader Enku reported:
"Dallol is back to its original status with every bit of the geothermal fissures which are full of activity with gas and liquid chemicals washed out by the hot ground water. I have never seen Dallol like this before in my entire 12 years of Afar Depression trip."

Volcano Activity Summary for 29 Feb 2016:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 18 Feb 2016)
Aso (central Kyushu, Japan): 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 24 Feb 2016)
Cotopaxi (Ecuador): vulcanian explosions (updated 16 Aug 2015)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 23 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 16 Feb 2016)
Momotombo (Nicaragua): intermittent vulcanian explosions (updated 29 Feb 2016)
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 18 Feb 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 24 Feb 2016)
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 25 Feb 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 29 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 27 Feb 2016)
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 sporadic explosions (updated 23 Feb 2016)
Canlaon (Central Philippines): occasional phreatic explosions (updated 11 Dec 2015)
Cerro Negro (Nicaragua): increased earthquake activity (updated 16 Feb 2016)
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)
Nevado del Ruiz (Colombia): intermittent ash emissions, strong degassing (updated 23 Feb 2016)
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 16 Feb 2016)
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 plume of Tungurahua volcano yesterday (image:  J.L Espinosa-Naranjo @Ambalaser / twitter)
Saturday, Feb 27, 2016
Tungurahua (Ecuador): Two moderately large explosions occurred at the volcano yesterday noon from 12:12 local time. The first and larger explosion produced an ash plume that rose approx. 5000 meters above the summit. ... [more]
Thursday, Feb 25, 2016
Shiveluch (Kamchatka): (25 Feb) Based on satellite data, Tokyo VAAC reported an eruption plume from the volcano that rose to estimated 21,000 ft (6.4 km) altitude yesterday evening and drifted NW. ... [more]
Eruption of Etna's NE crater yesterday morning (INGV Catania)
Wednesday, Feb 24, 2016
Etna (Sicily, Italy): An unusual eruptive episode occurred yesterday morning from the volcano's NE crater (the least active of the summit vents over the past few decades). Incandescent bombs were ejected above the rim of the crater and an ash plume rose several hundred meters. ... [more]
Explosion at Sinabung yesterday evening 18:19 local time (Image: @BeidarSinabung via Leopold Kennedy Adam / twitter)
Tuesday, Feb 23, 2016
Sinabung (Sumatra, Indonesia): The volcano continues to erupt with little changes overall: the activity consists of slow extrusion of viscous lava, interrupted by intermittent explosions (every few days on average) caused by sudden pressure release of trapped pressurized gasses. An explosion this morning was reported to have produced an ash plume that rose to 14,000 ft (4,2 km) altitude and drifted NW. ... [more]
MODIS thermal signal from Alaid volcano (MIROVA)
Monday, Feb 22, 2016
Alaid (Northern Kuriles): New thermal anomalies have been detected from the volcano during the past days via satellite data. It is not known whether or not a new eruption is underway at the volcano which is rarely visited, but one of the most active ones in the area. ... [more]

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