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Volcanic activity worldwide 16 Oct 2013: Klyuchevskoy, Barren Island, Galeras, Ubinas, Sotará, Cumb...

Wednesday Oct 16, 2013 17:03 PM |

Klyuchevskoy volcano this morning (KVERT webcam)
Klyuchevskoy volcano this morning (KVERT webcam)
MODIS hot spot data (past 7 days) for Barren Island volcano (ModVolc, Univ. Hawaii)
MODIS hot spot data (past 7 days) for Barren Island volcano (ModVolc, Univ. Hawaii)
Klyuchevskoy (Kamchatka): Strong eruptive activity continues. VAAC Tokyo reports an ash plume rising to estimated 33,000 ft (10 km) altitude, i.e. about 5 km tall above the volcano, and drifting SW.
Aircraft should avoid the airspace near as well many miles southwest and east of the volcano. VAAC Tokyo publishes regular updates about the observed and predicted extent of the ash plume.

Galeras (Colombia): Surface and seismic activity have been low recently. A 3.8 magnitude earthquake at 5.5 km depth and 7 km NE of the volcano occurred yesterday at 17:13 local time.
The earthquake was felt in Pasto, and the municipalities of Nariño and La Florida. This event was preceded by 14 earthquakes of smaller magnitude (less than 2.6) recorded between 12:56 am and 16:40 pm, located as well on the NE sector of the volcano at depths 1.2 and 7 km.

Cumbal (Colombia): Seismic unrest continues at low levels with little changes over the past weeks and months. GEOMINAS keeps the volcano at yellow alert level.

Sotará (Colombia): Low-level seismic unrest continues with no significant changes to report over the past months.

Sabancaya (Peru): Seismic unrest continued through Sep-Oct including occasional swarms of volcanic-tectonic quakes (such as on 10 Oct), but overall earthquake activity has been showing a slowly decreasing trend. The volcano remains to be closely monitored.

Ubinas (Peru): Surface and seismic activity have calmed down recently and are near background levels.

Barren Island (Indian Ocean): A new eruption occurred this week. This was confirmed by the Indian Navy (via twitter) who reported "smoke" and lava seen on the island from a surveillance plane. A large hot spot is visible on recent MODIS satellite data on the remote volcanic island, located in the Andaman Islands archipelago.
No details about the nature of the eruption are available at the moment, but the description and distribution of the hot spots suggests that it might be an explosive-effusive eruption with lava flows (possibly reaching the sea.
A satellite image from yesterday shows what likely is a steam/gas plume, but doesn't allow to recognize details.

Volcano Activity Summary for 16 Oct 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 16 Sep 2013)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 3 Oct 2013)
Barren Island (Indian Ocean): new eruption in mid October 2013 (updated 16 Oct 2013)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 10 Oct 2013)
Chirinkotan (Northern Kuriles): unspecified activity - possibly lava flows (updated 2 Sep 2013)
Cleveland (Aleutian Islands, Alaska): continuous small eruptions (updated 6 May 2013)
Colima (Western Mexico): lava flow on upper eastern flank (updated 19 Jul 2013)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 14 Oct 2013)
Erebus (Antarctica): active lava lake in summit crater (updated 21 Jan 2012)
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 flow on upper southern flank, small to moderate explosions (updated 15 Oct 2013)
Jebel Zubair (Red Sea): submarine eruption started 28 Sep 2013 (updated 14 Oct 2013)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 13 Oct 2013)
Kilauea (Hawai'i): lava lakes in Halemau'uma'u and Pu'u 'O'o, lava flows on coastal flat and weakly active ocean entries (updated 13 Aug 2013)
Kizimen (Kamchatka): growing lava dome and incandescent rock avalanches (updated 15 Oct 2013)
Klyuchevskoy (Kamchatka): strombolian activity / lava fountains in summit crater, lava flows, flank eruption, strong ash emissions (updated 16 Oct 2013)
Marapi (Western Sumatra, Indonesia): occasional weak explosions (updated 14 Aug 2013)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 12 Jun 2013)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): strombolian activity and lava flow (updated 10 Oct 2013)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 12 Aug 2013)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): explosions and ash emissions (updated 1 Oct 2013)
Reventador (Ecuador): ash explosions, occasional pyroclastic flows (updated 15 Oct 2013)
Sakurajima (Kyushu, Japan): constant ash emissions and strong explosions (updated 15 Oct 2013)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 15 Oct 2013)
Semeru (East Java, Indonesia): growing lava dome, ash venting and small to moderate explosions (updated 25 Jul 2012)
Shiveluch (Kamchatka): slow dome growth, occasional explosions and pyroclastic flows (updated 15 Oct 2013)
Stromboli (Eolian Islands, Italy): continuing lava overflows (updated 10 Oct 2013)
Suwanose-jima (Ryukyu Islands): Mt Ontake volcano of Suwanose-jima Island, Japan (updated 12 Sep 2013)
Telica (Nicaragua): normal (low) seismic activity (updated 26 Sep 2013)
Tungurahua (Ecuador): strombolian activity (updated 15 Oct 2013)
Ulawun (New Britain, Papua New Guinea): steaming, degassing (updated 1 Oct 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 10 Sep 2013)

Eruption warning / minor activity:

Bezymianny (Central Kamchatka Depression): slow lava flow extrusion from dome (updated 13 Oct 2013)
Chirpoi (Kurile Islands, Russia): hot spot visible on satellite imagery (updated 14 Oct 2013)
Dieng (Central Java): increased degassing (updated 28 Mar 2013)
Etna (Sicily, Italy): sporadic ash emissions from New SE crater (updated 10 Oct 2013)
Heard (Australia, Southern Indian Ocean): likely lava lake in summit crater (updated 3 Oct 2013)
Ibu (Halmahera, Indonesia): growing lava dome, seismic unrest (updated 9 Jun 2013)
Iliwerung (Lesser Sunda Islands): possible submarine eruption from Mt Hobal on 20 August (updated 20 Aug 2013)
Karangetang (Siau Island, Sangihe Islands, Indonesia): lava extrusion at summit crater, strombolian activity, glowing avalanches (updated 4 Sep 2013)
Kerinci (Sumatra): occasional ash explosions (updated 5 Jun 2013)
Ketoi (Kurile Islands, Russia)
Kirishima (Kyushu): degassing, slightly increased seismic activity (updated 30 Jul 2012)
Langila (New Britain, Papua New Guinea): occasional ash explosions (updated 11 Feb 2013)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 24 Sep 2013)
Manam (Papua New Guinea): occasional explosions (updated 12 Sep 2013)
Merapi (Central Java): moderate gas and ash plume on 22 july (updated 3 Oct 2013)
Nevado del Ruiz (Colombia): seismic unrest (updated 7 Oct 2013)
Papandayan (West Java): strong hydrothermal activity, increased seismicity (updated 6 May 2013)
Poas (Costa Rica): occasional small phreatic explosions from lake (updated 22 Aug 2013)
Popocatépetl (Central Mexico): steam/gas/ash emissions (updated 15 Oct 2013)
Raung (East Java): strombolian activity in summit crater (updated 5 Aug 2013)
Tangkubanparahu (West Java): occasional phreatic explosions (updated 15 Oct 2013)
Turrialba (Costa Rica): ash venting, strong degassing (updated 24 Jul 2013)
Veniaminof (Alaska Peninsula, USA): effusion of lava flows (updated 15 Oct 2013)
White Island (New Zealand): strong degassing, volcanic tremor (updated 13 Oct 2013)

Previous news
Klyuchevskoy volcano half an hour ago (KVERT webcam)
Tuesday, Oct 15, 2013
Klyuchevskoy (Kamchatka): KVERT reported a small decrease in activity, although it seems during the past hours (after the report) to have increased again (see video below). The activity in any case can be considered high. An ash plume rises to up to 26,200 ft (8 km) a.s.l. and extends to the east-north-east of the volcano. ... [more]

Monday, Oct 14, 2013
Reykjanes (Reykjanes peninsula (SW Iceland)): (13 Oct) A shallow (10 km) magnitude 4.8 earthquake with many pre- and aftershocks (or a seismic swarm) occurred this morning (Sun) at 07:34 UTC at the SW tip of the Reykjanes peninsula, on the SW active rift zone. The swarm of earthquakes included several quakes of magnitude 3 and higher. The strongest earthquake was widely felt in SE Iceland. ... [more]
Eruption from Klyuchevskoy volcano, Kamchatka (KVERT webcam)
Sunday, Oct 13, 2013
Gorely (Southern Kamchatka): No changes in activity (strong degassing, moderate seismic activity) have occurred. ... [more]
Lightning inside the eruption cloud above Klyuchevskoy volcano (KVERT webcam)
Saturday, Oct 12, 2013
Klyuchevskoy (Kamchatka): (11 Oct) We posted the following time-lapse video of the eruption this morning (or evening, in Kamchatka time). At 08:30 UTC (17:30 local time), a new vent opened in the saddle between Klyuchevskoy and neighboring Kamen volcano, producing a fountain of lava and ash rising to about 7 km altitude. The KVERT webcam even captured lightning during this eruption: ... [more]
Map of yesterday's earthquakes under Etna (marker shows one of the two mag 2.7 events)
Friday, Oct 11, 2013
Etna (Sicily, Italy): (10 Oct) A swarm of shallow earthquakes occurred yesterday under the SE flank, below Monte Arcimis near Tarderia (Pedara) at depths of 2.7-5.6 km. The two largest events were magnitude 2.7 and felt by local residents. ... [more]

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