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Volcanic activity worldwide 8 Nov 2013: Yasur, Momotombo, Etna

Friday Nov 08, 2013 17:03 PM |

Strombolian eruption from NSEC this night
Strombolian eruption from NSEC this night
Ash emission from Yasur yesterday (webcam view)
Ash emission from Yasur yesterday (webcam view)
Current seismic signal at Momotombo volcano (MOMN station, INETER)
Current seismic signal at Momotombo volcano (MOMN station, INETER)
Etna (Sicily, Italy): Explosions from the New SE crater continued over night and this morning, although their frequency and size has decreased. Tremor levels have remained essentially unchanged and are still low.

Yasur (Tanna Island, Vanuatu): Strong semi-continuous ash emissions and relatively strong strombolian explosions that eject large bombs outside the crater were reported by John Seach, a regular visitor to the volcano.
The ash falls damage vegetation near the volcano and some ash fall was reported from Erromango Island located 150 km north of Yasur. John mentions large lava bombs of 4 meters in diameter.

Momotombo (Nicaragua): A small seismic swarm occurred at the volcano today. A cluster of small earthquakes of magnitudes around 1 were detected on 6 Nov under the southern flank.

Volcano Activity Summary for 8 Nov 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 16 Sep 2013)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 4 Nov 2013)
Barren Island (Indian Ocean): new eruption in mid October 2013 (updated 17 Oct 2013)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 6 Nov 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 23 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 4 Nov 2013)
Ibu (Halmahera, Indonesia): growing lava dome, seismic unrest (updated 23 Oct 2013)
Jebel Zubair (Red Sea): submarine eruption started 28 Sep 2013 (updated 3 Nov 2013)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 6 Nov 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)
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 3 Nov 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 3 Nov 2013)
Sakurajima (Kyushu, Japan): constant ash emissions and strong explosions (updated 3 Nov 2013)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 3 Nov 2013)
Semeru (East Java, Indonesia): growing lava dome, ash venting and small to moderate explosions (updated 18 Oct 2013)
Shiveluch (Kamchatka): slow dome growth, occasional explosions and pyroclastic flows (updated 6 Nov 2013)
Sinabung (Sumatra, Indonesia): ash emissions and explosions (updated 6 Nov 2013)
Stromboli (Eolian Islands, Italy): continuing lava overflows (updated 3 Nov 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, strong ash emissions (updated 3 Nov 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 8 Nov 2013)
Zhupanovsky (Kamchatka, Russia): new explosive activity since 23 Oct (updated 6 Nov 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): degassing, seismic unrest (updated 5 Nov 2013)
Heard (Australia, Southern Indian Ocean): likely lava lake in summit crater (updated 3 Oct 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)
Klyuchevskoy (Kamchatka): strong steaming, likely strombolian activity in summit crater (updated 6 Nov 2013)
Langila (New Britain, Papua New Guinea): occasional ash explosions (updated 24 Oct 2013)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 24 Sep 2013)
Manam (Papua New Guinea): occasional explosions (updated 4 Nov 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 3 Nov 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)

Previous news
Explsion from Etna's New SE crater in the afternoon
Thursday, Nov 07, 2013
Etna (Sicily, Italy): Intermittent strombolian explosions continue to occur every 10-15 minutes from the New SE crater. Tremor levels are fluctuating with no clear tendency (yet). ... [more]
Ash plume from an eruption of the New SE crater
Wednesday, Nov 06, 2013
Etna (Sicily, Italy): Explosions with ejection of incandescent material from the NSEC started again. Some relatively large explosions occurred at 11:51, 12:37, and 13:06 UTC. Tremor has been rising and an earthquake swarm occurred earlier at depths of 10-20 km beneath the SW flank. This could be a sign that the next paroxysm is not far away. At the moment, the tremor has decreased again a bit. ... [more]
Location of the 2.9 earthquake under Etna this morning
Tuesday, Nov 05, 2013
Etna (Sicily, Italy): While the summit craters have remained calm, seismic activity shows continuing unrest at the volcano. A number of relatively shallow earthquakes occurred this morning under the volcano. ... [more]
Bright glow from a likely collapse event at Shiveluch this morning (KVERT webcam)
Monday, Nov 04, 2013
Shiveluch (Kamchatka): An small ash plume rising to 12,000 ft (3,6 km) was detected at 11:00 UTC by VAAC Tokyo this morning (20:00 local time), suggesting another eruption (likely partial collapse from the dome). Video data show increased incandescence at that time, confirming this interpretation. ... [more]

Sunday, Nov 03, 2013
Stromboli (Eolian Islands, Italy): Activity has remained similar since our previous visit 9 days ago: most activity is at the NW crater (towards Ginostra), where 3 vents are active and produce mild to strong strombolian explosions (to heights of up to 250 m approx) at rates of one every 5 minutes approximately, mostly from the eastern vent and sometimes from the tall hornito to the north. The eastern vent also shows weak spattering and continuous glow, suggesting a high magma level within its conduit. ... [more]

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