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Volcanic activity worldwide 11 Nov 2015: Fuego volcano, Lokon-Empung, Karangetang, Gamkonora, Gamala...

Wed, 11 Nov 2015, 21:00
21:00 PM |
MODIS thermal signal from Karangetang (MIROVA)
MODIS thermal signal from Karangetang (MIROVA)
Moderately large pyroclastic flow from Sinabung on 8 Nov 2015 (image via @LeopoldAdam/twitter)
Moderately large pyroclastic flow from Sinabung on 8 Nov 2015 (image via @LeopoldAdam/twitter)
Heat signal from Sangeang Api volcano during the past year (MIROVA)
Heat signal from Sangeang Api volcano during the past year (MIROVA)
Moderately strong ash emission from Cotopaxi this morning
Moderately strong ash emission from Cotopaxi this morning
Ash emission from Tungurahua yesterday evening
Ash emission from Tungurahua yesterday evening
Sakurajima (Kyushu, Japan): Activity at the volcano remains comparably low. During 2-6 November, only two small-scale eruptions occurred at the Showa Crater. Alert level is kept at 3 out of 5.

Karangetang (Siau Island, Sangihe Islands, Indonesia): Activity at the volcano has decreased a bit, but the volcano continues to effuse viscous lava at its summit, feeding a lava flow and generating incandescent avalanches.
from the Smithsonian / USGS Weekly Volcanic Activity Report 4-10 November 2015:
... [read more]

Gamkonora (Halmahera): PVMBG reported that observers at the Gamkonora observation post in Gamsungi (6 km NW), West Halmahera, reported that during 1 August-3 November diffuse white plumes rose up to 70 m above the crater rim.
RSAM values fluctuated; an increase was detected in October coincident with a period of increased tremor. The Alert Level was lowered to 2 (on a scale of 1-4) on 1 July. Residents and tourists were asked not to venture near the crater within a radius of 1.5 km.
(Smithsonian / USGS Weekly Volcanic Activity Report 4-10 November 2015)

Gamalama (Halmahera): PVMBG reported that during 1 August-4 November seismicity at Gamalama fluctuated, and was dominated by hybrid earthquakes and signals indicating emissions. 3 periods of increased seismicity were recorded during 3-5 and 11-19 August, and 8-22 October, though seismicity declined overall.
A sudden, small eruption from a fissure on the NW flank occurred at 19:53 on 8 September with no precursory seismicity, and produced a plume that rose 1 km. Gray plumes rose from 300-600 m the vent during 9-24 September.
... [read more]

Sinabung (Sumatra, Indonesia): The eruption of the volcano, slow extrusion of viscous lava, continues with little changes.
A lava lobe is active on the SE upper flank. Occasionally, parts of this lobe and/or the dome collapse to produce pyroclastic flows that reach up to 3-4 km distance.

Sangeang Api (Indonesia): PVMBG reported that observers at the Sangeang Api observation post in Desa Sangeang Darat, Bima, West Nusa Tenggara, reported that during 1 July-30 September diffuse white plumes rose up to 250 m above the crater rim. During 1 October-1 November white-to-gray plumes rose as high as 350 m.
Beginning on 23 October occasional weak thumping noises were reported. Crater incandescence possibly indicated lava-dome growth or lava-flow advancement.
The Alert Level remained at 2 (on a scale of 1-4); visitors and residents were warned not to approach the crater within a 1.5-km radius.

Paluweh (off Flores Island, Indonesia): PVMBG reported that observers at a post located in Kampung Ropa, Keliwumbu Village, noted that during 1 August-2 November diffuse white plumes rose as high as 200 m above Paluweh.
Seismicity remained relatively stable. The Alert Level remained at 2 (on a scale of 1-4). Residents and tourists were reminded not to approach the summit within a radius of 1.5 km.
(Smithsonian / USGS Weekly Volcanic Activity Report 4-10 November 2015)

Lokon-Empung (North Sulawesi, Indonesia): PVMBG reported that during 28 October-5 November observers at the post in Kakaskasen Tomohon (North Sulawesi, 4 km from the crater), saw white plumes rising as high as 125 m above the crater.
Seismicity fluctuated, but the seismic spectral amplitude measurement (SSAM) showed an increasing trend. The Alert Level remained at 3 (on a scale of 1-4). Residents and tourists were reminded not to approach the crater within a radius of 2.5 km.

Fuego (Guatemala): The strong eruptive phase (paroxysm) at the volcano ended over night and activity returned to normal levels of intermittent strombolian explosions.
A gradual decrease of activity began yesterday afternoon, when pyroclastic flows stopped and explosions at the summit decreased in size and frequency. This morning, the lava flow was still active, but its length had decreased from 2.5 to 1.5 km.

Cotopaxi (Ecuador): Intermittent explosions continue at the volcano. IG reported that during 4-10 November gas, steam, and ash plumes rose almost daily from Cotopaxi as high as 1.5 km above the crater.
Minor ashfall was reported S of the volcano on 6 November, and small lahars descended the W flank during 6 and 8-9 November.

Tungurahua (Ecuador): The volcano continues to produce intermittent mild explosions with ash emissions that produce columns that rise up to approx 1 km.
from the latest Smithsonian / USGS Weekly Volcanic Activity Report 4-10 November 2015:
... [read more]

Volcano Activity Summary for 11 Nov 2015:

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 26 Oct 2015)
Colima (Western Mexico): intermittent explosions from summit crater (updated 20 Oct 2015)
Cotopaxi (Ecuador): vulcanian explosions (updated 16 Aug 2015)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 8 Nov 2015)
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)
Fuego (Guatemala): lava fountaining, strong strombolian activity, lava flows (updated 11 Nov 2015)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Karangetang (Siau Island, Sangihe Islands, Indonesia): lava flow, incandescent avalanches (updated 11 Nov 2015)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 10 Nov 2015)
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)
Nevado del Ruiz (Colombia): intermittent ash emissions, strong degassing (updated 21 Sep 2015)
Nishino-shima (Volcano Islands, Japan): growing island (updated 21 Oct 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): weak strombolian activity in summit crater (updated 10 Nov 2015)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 18 Aug 2015)
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)
Rinjani (Lombok): lava flow effusion and ash emissions from new vent on Barujari cone (updated 10 Nov 2015)
Sakurajima (Kyushu, Japan): seismic swarm, eruption warning (updated 11 Nov 2015)
Sangay (Ecuador): likely strombolian eruptions at summit crater (updated 13 Mar 2015)
Santiaguito (Guatemala): slowly growing lava dome, ash explosions, viscous lava flow extrusion, occasional pyroclastic flows (updated 6 Nov 2015)
Semeru (East Java, Indonesia): growing lava dome, lava flow, strombolian activity (updated 9 Nov 2015)
Shiveluch (Kamchatka): growing lava dome (updated 30 Oct 2015)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 11 Nov 2015)
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)
Telica (Nicaragua): intermittent phreatic explosions (updated 27 Sep 2015)
Tungurahua (Ecuador): intermittent small ash emissions, small to moderate explosions (updated 11 Nov 2015)
Turrialba (Costa Rica): small to moderate ash emissions, intense degassing (updated 26 Oct 2015)
Villarrica (Central Chile): small lava lake in summit crater (updated 12 May 2015)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)

Eruption warning / minor activity:

Alaid (Northern Kuriles): probable strombolian activity in summit crater (updated 8 Oct 2015)
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 19 Aug 2015)
Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Bulusan (Luzon Island, Philippines): occasional phreatic explosions (updated 16 Jun 2015)
Chirinkotan (Northern Kuriles, Russia): sporadic ash emissions (updated 28 Jul 2015)
Chirpoi (Kurile Islands, Russia): strombolian activity, lava flows entering the sea (updated 8 Nov 2015)
Copahue (Chile/Argentina): intermittent ash emissions, strong degassing, crater incandescence (updated 18 Oct 2015)
Etna (Sicily, Italy): weak strombolian activity inside Voragine crater (updated 19 Apr 2014)
Heard (Australia, Southern Indian Ocean): possibly lava lake in summit crater (updated 6 Nov 2015)
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 31 Mar 2014)
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)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 11 Nov 2015)
Lopevi (Vanuatu): eruption warning (updated 16 Dec 2014)
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)
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)
Piton de la Fournaise (La Réunion): lava effusion from new vent near Piton Rivals (updated 30 Oct 2015)
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): degassing, seismic unrest, sporadic ash emissions (updated 28 Jan 2015)
Sangeang Api (Indonesia): weak lava extrusion from summit crater (updated 11 Nov 2015)
Shishaldin (Aleutian Islands, Alaska): mild explosive activity, intermittent more intense phases (updated 6 Nov 2015)
Sirung (Pantar Island, Indonesia ): degassing (updated 10 Jul 2015)
Slamet (Central Java): steam emissions (updated 12 Jan 2015)
Soputan (North Sulawesi, Indonesia): seismic unrest (updated 26 Oct 2015)
Ubinas (Peru): occasional explosions (updated 6 Nov 2015)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)
Zhupanovsky (Kamchatka, Russia): intermittent ash emissions (updated 22 Jun 2015)

Previous news
Tue, 10 Nov 2015, 17:12
Etna's current tremor signal (EBCN station, INGV Catania)
Etna (Sicily, Italy): Last night, a marked peak of volcanic tremor occurred as sign of internal unrest at the volcano, but (unlike during many previous occasions) did not result in a paroxysm and was not associated with any particular change in surface activity. ... read all
Mon, 9 Nov 2015, 21:00
The active lava dome inside Semeru's crater in early Nov 2015 (image: Andi / VolcanoDiscovery Indonesia)
Semeru (East Java, Indonesia): The lava dome inside the summit crater continues to grow slowly. Andi climbed the volcano a few days ago and observed continuous degassing, sometimes followed by minor explosions. ... read all
Sun, 8 Nov 2015, 21:00
Etna's summit area this morning
Etna (Sicily, Italy): (8 Nov) Etna remains highly restless. A peak in volcanic tremor occurred last night but with no visible changes in surface activity. Weak strombolian activity continues from the vent inside the Voragine summit craters. ... read all
Fri, 6 Nov 2015, 21:00
Ash plume over Lombok island this morning (NASA / MODIS)
Sakurajima (Kyushu, Japan): (6 Nov) Activity remains low. Only small-scale explosions occurred during the past weeks from the Showa crater. The Alert Level remains at 3 (out of 5). ... read all
Wed, 4 Nov 2015, 21:00
Ash plume from Rinjani volcano drifting over Bali today (MODIS / NASA)
Rinjani (Lombok): The eruption has intensified a lot over the past few days. Activity takes place from a lateral vent on the Barujari cone inside the volcano's caldera, producing continuous ash emissions and feeding a new viscous lava flow. The lava flow has been advancing more than 500 m in two lobes towards the NE. ... read all

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