Monday, August 26, 2013

[Geology2] Volcanic activity worldwide 26 Aug 2013



Volcanic activity worldwide 26 Aug 2013: Monte Albano, Kliuchevskoi, Rabaul (Tavurvur), Ebulobo , Ba...

Monday Aug 26, 2013 19:04 PM |

MODIS hot spot data (past 7 days) for Tavurvur volcano (ModVolc, Univ. Hawaii)
MODIS hot spot data (past 7 days) for Tavurvur volcano (ModVolc, Univ. Hawaii)
NASA EO-1 ALI satellite image of Manam volcano showing a steam plume and two active vents (21 Aug 2013)
NASA EO-1 ALI satellite image of Manam volcano showing a steam plume and two active vents (21 Aug 2013)
Monte Albano (Italy): What appears to be a new fumarole appeared near Rome's International Fiumicino airport Saturday morning. A vent producing small geyser-like fountains of steam, water and mud suddenly opened in the ground near a road crossing near Fiumicino.
Geologists are currently examining the phenomenon. It is still a bit unclear whether it is not a man-made accident caused by a broken pipe or similar (which might well be the case). As La Repubblica statess, first inspections however indicate that ii is in fact a new natural vent. Obviously, there are also already some speculations whether it could be related to volcanic activity.
... [read more]

Kliuchevskoi (Kamchatka): Relatively intense strombolian activity continues at the summit. Bright glow can be seen at night. Both webcam images and MODIS hot spot data indicate the occurrence of hot avalanches on the slopes of the volcano as well.
The following is a time-lapse video from today's activity (KVERT webcam):

Suwanose-jima (Ryukyu Islands): An explosion at 01:54 GMT was reported by VAAC Tokyo earlier today. The height of the ash plume could not be determined.

Rabaul (Tavurvur) (New Britain, Papua New Guinea): Mild to moderate explosive activity continues. During the past days, several ash plumes reaching 6,000 ft (1,8 km) altitude were reported. MODIS data show a hot spot at Tavurvur cone.

Bagana (Bougainville Island, Papua New Guinea): A hot spot remains visible at the volcano, indicating that some activity continues. This is likely mostly effusive in style, because no recent significant ash emissions have been detected.

Manam (Papua New Guinea): Activity at the volcano continues. An explosion earlier today produced an ash plume rising to 10,000 ft (3 km) altitude extending 80 nautical miles to the NW, VAAC Darwin reported.
A recent NASA satellite image from 21 August shows two active vents at the summit of the stratovolcano, possibly containing lava lakes.

Ebulobo (Flores): The alert level was raised from 1 (normal) to 2 (watch) (on a scale of 1-4) on 23 August, following detection of volcanic tremor as well as the observation of incandescence and increased degassing from the volcano's summit.

Volcano Activity Summary for 26 Aug 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 14 Aug 2013)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 16 Aug 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 2 May 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): strombolian activity, new lava flow on upper southern flank (updated 19 Aug 2013)
Gamalama (Halmahera): ash eruptions since 17 Sep (updated 17 Sep 2012)
Grozny (Iturup Island): fumarolic activity (updated 3 Apr 2013)
Heard (Australia, Southern Indian Ocean): likely lava lake in summit crater (updated 1 Aug 2013)
Karkar (Northeast of New Guinea): possible ash eruption on 1 February (updated 15 Mar 2013)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 22 Aug 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 22 Aug 2013)
Kliuchevskoi (Kamchatka): strombolian activity at summit crater (updated 26 Aug 2013)
Lokon-Empung (North Sulawesi, Indonesia): steaming, degassing, occasional ash explosions (updated 25 Jul 2013)
Manam (Papua New Guinea): occasional explosions (updated 26 Aug 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 in summit crater (updated 16 Aug 2013)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 12 Aug 2013)
Reventador (Ecuador): lava flow on upper southern flank, numerous small to moderate explosions (updated 17 Aug 2013)
Sakurajima (Kyushu, Japan): constant ash emissions and strong explosions (updated 23 Aug 2013)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 23 Aug 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 22 Aug 2013)
Stromboli (Eolian Islands, Italy): continuing lava overflows (updated 25 Jul 2013)
Tinakula (Santa Cruz Islands, Solomon Islands): increased activity at the volcano (updated 8 Feb 2013)
Tolbachik (Kamchatka): effusion of fluid lava flows (updated 13 Aug 2013)
Veniaminof (Alaska Peninsula, USA): effusion of lava flows (updated 16 Aug 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 14 Aug 2013)

Eruption warning / minor activity:

Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 26 Aug 2013)
Bezymianny (Central Kamchatka Depression): slow lava flow extrusion from dome (updated 10 Jun 2013)
Chirinkotan (Northern Kuriles): unspecified activity - possibly lava flows (updated 7 Aug 2013)
Copahue (Chile/Argentina): degassing, weak sporadic ash emissions (updated 16 Aug 2013)
Dieng (Central Java): increased degassing (updated 28 Mar 2013)
Etna (Sicily, Italy): steaming, degassing (updated 2 Aug 2013)
Galeras (Colombia): sporadic ash emissions (updated 25 Jul 2013)
Gamkonora (Halmahera): seismic swam, minor ash emissions (updated 27 May 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)
Iwo-Tori-shima (Ryukyu Islands): possible small ash eruption on 6 July 2013 (updated 6 Jul 2013)
Kerinci (Sumatra): occasional ash explosions (updated 5 Jun 2013)
Ketoi (Kurile Islands, Russia)
Kikai (Ryukyu Islands): steaming at summit crater of Iodake, occasional weak glows (updated 5 Jun 2013)
Kirishima (Kyushu): degassing, slightly increased seismic activity (updated 30 Jul 2012)
Krakatau (Sunda Strait, Indonesia): occasional explosions (updated 27 Jun 2013)
Langila (New Britain, Papua New Guinea): occasional ash explosions (updated 11 Feb 2013)
Medvezhia (Kurile Islands, Russia): strong steaming, thermal anomaly (updated 17 Jan 2013)
Merapi (Central Java): moderate gas and ash plume on 22 july (updated 24 Jul 2013)
Nyamuragira (DRCongo): steaming/degassing from pit inside summit caldera (updated 18 Jul 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 19 Aug 2013)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): explosions and ash emissions (updated 26 Aug 2013)
Rasshua (Central Kuriles)
Raung (East Java): strombolian activity in summit crater (updated 5 Aug 2013)
Rincón de la Vieja (Costa Rica): small phreatic eruption on 11 April (updated 6 Oct 2012)
Sacabaya (Northern Chile, Bolivia and Argentina)
Sangay (Ecuador): no recent explosions reported (updated 24 May 2013)
Suwanose-jima (Ryukyu Islands): Mt Ontake volcano of Suwanose-jima Island, Japan (updated 26 Aug 2013)
Tungurahua (Ecuador): degassing, earthquake swarm and inflation (updated 14 Aug 2013)
Turrialba (Costa Rica): ash venting, strong degassing (updated 24 Jul 2013)
Ulawun (New Britain, Papua New Guinea): steaming, degassing (updated 5 Aug 2013)
White Island (New Zealand): strong degassing, volcanic tremor (updated 20 Aug 2013)



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