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Volcanic activity worldwide 20 Nov 2013: Fuego, Klyuchevskoy, Sinabung, Santa María / Santiaguito, ...

Wednesday Nov 20, 2013 17:04 PM |

Weak glow from the eastern effusive vent at Etna's New SE crater
Weak glow from the eastern effusive vent at Etna's New SE crater
Lava flows on Fuego on 19 Nov into Taniluya (left) and Ceniza (right) canyons
Lava flows on Fuego on 19 Nov into Taniluya (left) and Ceniza (right) canyons
Etna (Sicily, Italy): (19 Nov) Weak explosive (sporadic small strombolian eruptions) and effusive activity (weakly alimented lava flow from eastern fissure vent) continues at a decreasing trend. There are interesting small surges of activity at rhythmic intervals of 3-4 hours (visible as the smaller peaks in the tremor signal).

Klyuchevskoy (Kamchatka): Eruptive activity remains high with ongoing mild to strong explosions at the summit. A particularly intense phase yesterday produced a plume rising to 10-12 km altitude that extended SE. Today, activity has decreased, but plumes continue to reach 5-6 km altitude and drift N and NE.

Sinabung (Sumatra, Indonesia): A new explosion was reported this morning (around 7:30 UTC), sending an ash plume to estimated 30,000 ft (9 km) altitude.

Yasur (Tanna Island, Vanuatu): Geohazards reports that the volcano continues to produce near-continuous ash emissions while explosions are relatively weak. This phase of ash emissions began on 3 November and are likely to continue into the coming days and weeks.
Yasur Alert Level is still maintained at Level 1.
Villages and communities located close and far away from the volcano, especially those in the prevailing trade winds direction (NW) are likely to receive ash falls.

Santa María / Santiaguito (Guatemala): No significant changes in activity have occurred over the past days. INSIVUMEH reports weak explosions and continuing incandescent block avalanches from the active lava flow on the NE side of the Caliente dome.

Pacaya (Guatemala): INSIVUMEH reports ongoing mild to moderate strombolian activity with ejections of lava to up to 75 meters. Intervals between bursts are 20 seconds to one minute.

Fuego (Guatemala): Two lava flows are active on the upper slopes of the volcano at the moment, to the Taniluya (south) and Ceniza canyon (SE). The effusive activity started on 11 Nov and increased on 18 November, reaching a length of 600 m. Constant avalanches detach from the flow fronts.
At the same time, explosive activity at the summit crater remained at low to moderate levels, with strombolian explosions that produce ash plumes of up to 800 m height and incandescent jets visible from distance. Some of the explosions generate shock waves that can be felt and heard in up to 15 km distance, causing roofs, doors and windows of houses to rattle.
Fine ash fall occurred in Panimaché, Morelia abd Sangre de Cristo.

Volcano Activity Summary for 20 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 16 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 16 Nov 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)
Etna (Sicily, Italy): degassing, seismic unrest (updated 17 Nov 2013)
Fuego (Guatemala): strombolian activity at summit, lava flow emission on upper slopes (updated 20 Nov 2013)
Ibu (Halmahera, Indonesia): growing lava dome, seismic unrest (updated 23 Oct 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)
Klyuchevskoy (Kamchatka): strong steaming, likely strombolian activity in summit crater (updated 20 Nov 2013)
Merapi (Central Java): moderate gas and ash plume on 22 july (updated 18 Nov 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)
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 14 Nov 2013)
Sakurajima (Kyushu, Japan): constant ash emissions and strong explosions (updated 16 Nov 2013)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 20 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 20 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): ash emissions, weak strombolian explosions (updated 20 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)
Copahue (Chile/Argentina): ash venting (updated 16 Nov 2013)
Dieng (Central Java): increased degassing (updated 28 Mar 2013)
Heard (Australia, Southern Indian Ocean): likely lava lake in summit crater (updated 14 Nov 2013)
Iliwerung (Lesser Sunda Islands): possible submarine eruption from Mt Hobal on 20 August (updated 20 Aug 2013)
Jebel Zubair (Red Sea): degassing, perhaps strombolian activity (updated 14 Nov 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 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)
Marapi (Western Sumatra, Indonesia): occasional weak explosions (updated 13 Nov 2013)
Nevado del Ruiz (Colombia): seismic unrest (updated 7 Oct 2013)
Pacaya (Guatemala): strombolian activity and lava flow (updated 20 Nov 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 14 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
Explosion at Sinabung this morning
Tuesday, Nov 19, 2013
Sinabung (Sumatra, Indonesia): (18 Nov) Another explosion occurred this morning, sending an ash plume to about 30,000 ft (9 km) altitude according to Darwin VAAC, that drifted westward. The aviation alert level was raised to red immediately. ... [more]
Weak activity last evening from the New SE crater
Monday, Nov 18, 2013
Etna (Sicily, Italy): Activity has gradually decreased since the last paroxysm, with short peaks of renewed stronger activity in between. As of now, weak explosions probably still continue at the New SE crater but cannot be observed due to cloud cover. Tremor signal is still elevated but with a an overall decreasing tendency. ... [more]
Lava fountain at the New SE crater during the 16th paroxysm in 2013
Sunday, Nov 17, 2013
Etna (Sicily, Italy): As expected, another paroxysmal eruption took place at the New SE crater over night. This marks the 16th such event in 2013. ... [more]
Strombolian explosion at the NSEC
Saturday, Nov 16, 2013
Etna (Sicily, Italy): Intense strombolian activity is occurring at the New SE crater. Tremor has been climbing slowly, and it seems more and more likely that the next paroxysm is about to start in a near future. ... [more]
Steam rings from Etna's New SE crater this morning
Saturday, Nov 16, 2013
Etna (Sicily, Italy): Weak explosions continue at the New SE crater, and often produce steam rings. This morning, tremor has started to rise, which could indicate the start of yet another paroxysm. ... [more]

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