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Volcanic activity worldwide 23 Dec 2013: Chaitén, El Hierro, Palena, Barren Island, Nishino-shima, ...

Monday Dec 23, 2013 10:21 AM |

Map of recent earthquakes under El Hierro (IGN)
Map of recent earthquakes under El Hierro (IGN)
The new volcanic island off Nishino-Shima in Japan continues to grow and might merge wih the main island
The new volcanic island off Nishino-Shima in Japan continues to grow and might merge wih the main island
The glowing lava dome from Chaitén last night (photo: Francisco Negroni)
The glowing lava dome from Chaitén last night (photo: Francisco Negroni)
The eruption OR wildfire plume near Palena volcano yesterday (photo: A Gillmore / Twitter)
The eruption OR wildfire plume near Palena volcano yesterday (photo: A Gillmore / Twitter)
MODIS hot spot data (past 7 days) for Brren Island volcano (ModVolc, Univ. Hawaii)
MODIS hot spot data (past 7 days) for Brren Island volcano (ModVolc, Univ. Hawaii)
Etna (Sicily, Italy): No significant changes have occurred. Ash emissions, sometimes relatively strong, continued from the NE crater and the tremor shows a very slow gradual rising trend.

El Hierro (Canary Islands, Spain): The new earthquake swarm that started under the island yesterday continues with now more than 100 quakes above magnitude 2 and several in the magnitude 3 range that were weakly felt on the island in some areas. The earthquakes are located at about 15 km depth under the southeastern central part of the island. Slight inflation is visible as well, suggesting that a new episode of magma inflation beneath the crust of the island has started. Whether or not this could lead to a new eruption is impossible to predict, but the most recent such episodes in the past 2 years occurred with no eruption following.

Nishino-shima (Volcano Islands, Japan): The new volcanic island continues to grow thanks to active lava flows and has now reached more than 50 meters and surpassed its mother island in height. Its continuing growth also makes it be at only about 50 meters shallow water distance from the Nishin-Jima island and it seems it might merge with it, rather than remaining an own new island, if activity continues.


Chaitén (Southern Chile and Argentina): The lava dome of the volcano has become more active recently. Incandescent spots are visible at night and a thermal anomaly is visible on satellite data. This suggests that new magma might be rising into the volcano. No explosive activity has (at least so far) occurred.

Palena (Southern Chile and Argentina): A pilot reported a volcanic ash cloud from the Palena volcano last evening. A picture from Andres Gillmore on twitter shows what in fact looks similar to an eruption plume, and that would mean that after Chaiten in 2008, a second volcano with no known historic eruptions has become active.
But at this point, it seems more likely that the ash cloud is from a large wildfire instead, in other words, there is no new volcanic eruption. SERNAGEOMIN has not reported on the event which supports this interpretation.

Barren Island (Indian Ocean): A significant thermal anomaly remains present at the volcano which is likely in some sort of eruptive activity (lava flows?). However, no plumes could be detected on satellite imagery. An aerial survey by the Indian Navy could give more clues what is going on.

Heard (Australia, Southern Indian Ocean): Hot spots at Mawson Peak volcano remain visible on satellite imagery, but there are no indications of lava flows. What typo of activity IS currently present on the volcano's summit is unknown.

Volcano Activity Summary for 23 Dec 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 5 Dec 2013)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 10 Dec 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)
Cleveland (Aleutian Islands, Alaska): continuous small eruptions (updated 6 May 2013)
Colima (Western Mexico): explosions and lava flows (updated 5 Dec 2013)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 18 Dec 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 15 Dec 2013)
Fuego (Guatemala): strombolian activity at summit, lava flow emission on upper slopes (updated 16 Dec 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)
Klyuchevskoy (Kamchatka): ash emissions (updated 12 Dec 2013)
Nishino-shima (Volcano Islands, Japan): lava effusion enlarging the new island (updated 23 Dec 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 Dec 2013)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 12 Aug 2013)
Reventador (Ecuador): ash explosions, occasional pyroclastic flows (updated 14 Nov 2013)
Sakurajima (Kyushu, Japan): constant ash emissions and strong explosions (updated 10 Dec 2013)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 10 Dec 2013)
Semeru (East Java, Indonesia): growing lava dome, ash venting and small to moderate explosions (updated 18 Oct 2013)
Shiveluch (Kamchatka): growing lava dome, incandescent avalanches, occasional explosions (updated 18 Dec 2013)
Sinabung (Sumatra, Indonesia): seismic crisis, degassing, ash venting, occasional explosions (updated 17 Dec 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 6 Dec 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:

Barren Island (Indian Ocean): lava flows (?) (updated 23 Dec 2013)
Bezymianny (Central Kamchatka Depression): slow lava flow extrusion from dome (updated 13 Oct 2013)
Chaitén (Southern Chile and Argentina): degassing, possible renewed slow growth of lava dome (updated 23 Dec 2013)
Chirinkotan (Northern Kuriles): unspecified activity - possibly lava flows (updated 22 Nov 2013)
Copahue (Chile/Argentina): ash venting (updated 16 Nov 2013)
Dieng (Central Java): increased degassing (updated 28 Mar 2013)
Galeras (Colombia): sporadic ash emissions (updated 18 Dec 2013)
Heard (Australia, Southern Indian Ocean): likely lava lake in summit crater (updated 23 Dec 2013)
Iliwerung (Lesser Sunda Islands): possible submarine eruption from Mt Hobal on 20 August (updated 20 Aug 2013)
Jebel Zubair (Red Sea): no signs of activity after 24 Nov 2013 (updated 26 Nov 2013)
Karangetang (Siau Island, Sangihe Islands, Indonesia): lava extrusion at summit crater, strombolian activity, glowing avalanches (updated 4 Sep 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 22 Nov 2013)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 24 Sep 2013)
Manam (Papua New Guinea): degassing, occasional ash venting (updated 5 Dec 2013)
Marapi (Western Sumatra, Indonesia): occasional ash explosions (updated 9 Dec 2013)
Merapi (Central Java): sporadic phreatic explosions (updated 12 Dec 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 9 Dec 2013)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): weak ash explosions (updated 5 Dec 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)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Dec 2013)

Previous news
Ash emission from Etna's NE crater
Sunday, Dec 22, 2013
Etna (Sicily, Italy): A slight increase in ash emissions from the NE crater and tremor is visible during the past hours. This might be a precursor to more vigorous activity in the near future. ... [more]
Ash venting from the NE crater (Pizzo Deneri Etna Trekking webcam)
Friday, Dec 20, 2013
Etna (Sicily, Italy): Ash emissions from the NE crater continue with little variation, suggesting deep-seated explosive degassing inside the upper conduit. Tremor is stable with a slightly increasing tendency. ... [more]
Ash emission from Etna's NE crater this afternoon
Thursday, Dec 19, 2013
Etna (Sicily, Italy): The ash emissions from the NE crater have increased and become near continuous. A likely cause are deep-seated explosions from a degassing active magma column. Tremor has remained low, but with a slight increase. ... [more]
Lava effusion from the new effusive vent at the lower NE flank of Etna's NSEC (photo from last evening: Emanuela / VolcanoDiscovery Italia)
Wednesday, Dec 18, 2013
Etna (Sicily, Italy): (17 Dec) Weak lava effusion continues from the fissure on the lower NE flank of the New SE crater. Explosive activity seems to have ceased and tremor has descended back to low levels. ... [more]
Thermal image of the New SE crater (INGV Catania)
Tuesday, Dec 17, 2013
Etna (Sicily, Italy): It seems that the latest, highly unusual paroxysm can be regarded as over. Lava effusion ceased (or almost completely ceased) over night and tremor has continued to drop to again low levels. ... [more]

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