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Volcanic activity worldwide 6 Dec 2013: Pacaya, El Hierro, Popocatépetl, Suwanose-jima, Heard, Etna

Friday Dec 06, 2013 15:54 PM |

Etna this morning with the 2 Dec lava flow against the white snow (Etna Trekking webcam)
Etna this morning with the 2 Dec lava flow against the white snow (Etna Trekking webcam)
Depth vs time of earthquakes at El Hierro volcano during 2013 (up to 6 Dec)
Depth vs time of earthquakes at El Hierro volcano during 2013 (up to 6 Dec)
Glow above the crater of Suwanose-jima volcano (Japan)
Glow above the crater of Suwanose-jima volcano (Japan)
SO2 plume from Popocatépetl yesterday (NOAA)
SO2 plume from Popocatépetl yesterday (NOAA)
Strombolian activity at Pacaya last evening (CONRED)
Strombolian activity at Pacaya last evening (CONRED)
MODIS hot spot data (past 7 days) for Heard Island volcano (ModVolc, Univ. Hawaii)
MODIS hot spot data (past 7 days) for Heard Island volcano (ModVolc, Univ. Hawaii)
Etna (Sicily, Italy): No significant news from Etna so far. The brilliant weather shows the fiery lady in all her glory today. The latest lava flow towards Valle del Bove from Monday's paroxysm stands out as a dark black tongue against the white snow. Volcanic tremor has increased a bit, showing that the NSEC remains (mostly internally) agitated.

El Hierro (Canary Islands, Spain): No significant changes have occurred during the past months. Since the last energetic seismic swarm and deformation event in late March / early April this year, earthquake activity has remained more or less stable, although above background (pre-2011) levels.
In the past months, averages ranged from 5-10 mostly small (below magnitude 3) daily events. Most of them are clustered at approx. 10 km depth beneath the central part of the island.
No significant deformation has taken place in this period either.

Suwanose-jima (Ryukyu Islands): Weak reddish glow can be seen above the active Ontake crater at night. It is possible (if not likely) that there is weak strombolian activity. During the past weeks, a few more energetic explosions produced ash plumes that could be identified by VAAC Tokyo.

Popocatépetl (Central Mexico): Strong degassing with high SO2 content and glow from the crater characterize the current activity. There have been almost no explosive emissions during the past 24 hrs, as the following 24hr time-lapse video illustrates:


Pacaya (Guatemala): Strombolian activity has started to increase last evening, INSIVUMEH reports in its latest special bulletin, and might lead up to another phase of lava flow emission.
Accompanied by continuous tremor, explosions from the Mackenney crater have become more frequent and eject abundant incandescent material that rapidly accumulates around the new cone. A small ash plume was rising about 150 m. According to the observatory, it is likely that this activity continues to increase and leads to the emission of a new lava flow, which would be expected to likely descend the western flank.

Heard (Australia, Southern Indian Ocean): A hot spot at the summit crater is visible on MODIS satellite data, suggesting resumed or ongoing activity of some sort (small lava dome, lava lake?).

Volcano Activity Summary for 6 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 5 Dec 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)
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 30 Nov 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 28 Nov 2013)
Fuego (Guatemala): strombolian activity at summit, lava flow emission on upper slopes (updated 5 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)
Kizimen (Kamchatka): growing lava dome and incandescent rock avalanches (updated 15 Oct 2013)
Nishino-shima (Volcano Islands, Japan): strombolian activity, cone-building, lava flows (updated 3 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 6 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 5 Dec 2013)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 5 Dec 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 3 Dec 2013)
Sinabung (Sumatra, Indonesia): ash venting and vulcanian explosions (updated 5 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)
Telica (Nicaragua): normal (low) seismic activity (updated 26 Sep 2013)
Tungurahua (Ecuador): strombolian activity, strong ash emissions (updated 3 Nov 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)
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 5 Dec 2013)
Heard (Australia, Southern Indian Ocean): likely lava lake in summit crater (updated 6 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)
Klyuchevskoy (Kamchatka): strong steaming, likely strombolian activity in summit crater (updated 30 Nov 2013)
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 weak explosions (updated 13 Nov 2013)
Merapi (Central Java): moderate gas and ash plume on 22 july (updated 1 Dec 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 6 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
Vulcanian explosion from Sakurajima this morning (Tarumizu webcam)
Thursday, Dec 05, 2013
Etna (Sicily, Italy): The New SE crater remains restless. As the following time-lapse video of the past 24 hours shows, there is occasional weak lava extrusion from effusive vents on the upper flanks, and rarely glow from the summit vent suggesting that the magma column is relatively still high inside the vent and sometimes produces deep-seated strombolian explosions. ... [more]
INGV webcam image of Etna's New SE crater during the main phase of the eruption
Tuesday, Dec 03, 2013
Etna (Sicily, Italy): Turi Caggegi succeeded in capturing yesterday's lava fountains, several hundreds of meters high and from several vents spraying in different directions, on video: ... [more]
Ash emission from Sinabung volcano today
Monday, Dec 02, 2013
Sinabung (Sumatra, Indonesia): Activity continues at relatively mild levels. Numerous small explosions and ash emissions occurred today, producing plumes reaching up to 15,000 ft (4.5 km) altitude: ... [more]
Current tremor amplitude (ESLN station, INGV Catania)
Sunday, Dec 01, 2013
Etna (Sicily, Italy): The amplitude of tremor rose over night to levels that in the past weeks normally corresponded to intermittent strombolian activity at the New SE crater. However, bad visibility prevents direct observations. ... [more]
Weak glow from the New SE crater's summit vent this morning
Saturday, Nov 30, 2013
Etna (Sicily, Italy): The New SE crater has calmed down. Only very occasionally, a weak glow appeared from the summit vent at night, suggesting deep-seated activity still occurs from time to time. ... [more]

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