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Volcanic activity worldwide 7 Jun 2013: Etna, Pacaya, Fuego, Popocatépetl, Ibu, Pavlov, Sakurajima,...

Freitag Jun 07, 2013 16:56 |

MODIS hot spot data (past 7 days) for Paluweh volcano (ModVolc, Univ. Hawaii)
MODIS hot spot data (past 7 days) for Paluweh volcano (ModVolc, Univ. Hawaii)
Current webcam view of Popocatépetl
Current webcam view of Popocatépetl
Current seismic recording at Nevado del Ruiz (OLL station, INGEOMINAS)
Current seismic recording at Nevado del Ruiz (OLL station, INGEOMINAS)
Etna (Sicily, Italy): During a visit to the summit craters today, we could observe a new hot fumarole in the western pit of the Bocca Nuova, increased bluish degassing from a vent in the saddle between the old and new SE crater and hear deep-seated explosions inside the NE crater.
Apart from this, Etna seems to continue its "sleep". Tremor levels have been low during the past weeks, and no eruptive activity has been observed from any of the summit craters since early May.

Sakurajima (Kyushu, Japan): During the past 5 days, no explosions have been recorded by Tokyo VAAC. It seems that the volcano is currently taking a rest and at very low levels of activity, with no or only very small explosions occurring.

Bagana (Bougainville Island, Papua New Guinea): Eruptions continue at Bagana. Occasionally, ash plumes are detected on satellite data such as on 4 June when a plume at 8,000 ft (2.4 km) altitude extended 20 nautical miles to the west. (VAAC Darwin)

Ibu (Halmahera, Indonesia): The alert level of the volcano was raised to 3 ("Siaga", "alarm") on a scale of 1-4 by the Indonesian Volcanological Survey.
The remote volcano on Halmahera island is rarely visited, but reports from the ground suggest it has been in a state of near-permanent (mostly strombolian) activity for years.

Pavlov (Alaska Peninsula, USA): The renewed eruptive activity (since 4 June) continues at low to moderate levels, accompanied by increased seismic activity. AVO reported low lava fountaining, although webcam images of the plume are more consistent with classic strombolian-type activity. Yesterday morning, ash emissions rose to 14-18,000 ft (4.2-5.6 km) altitude and drifted about 45 km SW.
Satellite images show elevated surface temperatures at the summit, consistent with mild explosive and perhaps effusive activity.

Popocatépetl (Central Mexico): Activity has not changed much and remained comparably low, with about 3 weak to moderate emissions of steam and gas per hour. Occasionally, some of them contained small amounts of ash.
Yesterday, 4 volcanic-tectonic quakes of magnitudes between 2.1 and 2.7 occurred.

Pacaya (Guatemala): An emission of fine ash occurred this morning at 04:00 local time, but INSIVUMEH reports no other (e.g. strombolian) activity but degassing from the crater at the moment.

Fuego (Guatemala): The level of activity has been generally very weak recently. During yesterday-today, only two small strombolian explosions were counted.
Similarly, the Santiaguito lava dome has been rather calm as well.

Nevado del Ruiz (Colombia): Seismic unrest and elevated degassing (high SO2 output) continue, but no significant eruptive activity at the surface has been observed recently.

Copahue (Chile/Argentina): Seismic unrest continues, but the number and energy of quakes has been decreasing in recent days.

Volcano Activity Summary for 7 Jun 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 2 May 2013)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 7 Jun 2013)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 3 Jun 2013)
Cleveland (Aleutian Islands, Alaska): continuous small eruptions (updated 6 May 2013)
Colima (Western Mexico): frequent explosions from growing lava dome, glowing rockfalls and small pyroclastic flows (updated 25 Apr 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): weak to moderate strombolian activity (updated 7 Jun 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): possible lava lake in summit crater (updated 2 May 2013)
Karkar (Northeast of New Guinea): possible ash eruption on 1 February (updated 15 Mar 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 20 Apr 2013)
Kizimen (Kamchatka): growing lava dome, lava flow on eastern flank, avalanches (updated 19 May 2013)
Lokon-Empung (North Sulawesi, Indonesia): frequent small to moderate ash explosions (updated 6 May 2013)
Manam (Papua New Guinea): strombolian explosions, lava flow on southern flank (updated 16 Apr 2013)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 29 May 2013)
Ol Doinyo Lengai (Tanzania): spattering and lava flows of natrocarbonatite lava inside the summit crater (updated 9 Dec 2012)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 3 Jun 2013)
Pavlov (Alaska Peninsula, USA): lava fountaining, lava flow on NW flank (updated 7 Jun 2013)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): ash emissions, small explosions (updated 14 Mar 2013)
Sakurajima (Kyushu, Japan): 0-3 weak to moderate vulcanian-style explosions per day, ash clouds up to 2-3 km altitude (updated 7 Jun 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 19 May 2013)
Stromboli (Eolian Islands, Italy): continuing lava overflows (updated 6 Jun 2013)
Tinakula (Santa Cruz Islands, Solomon Islands): increased activity at the volcano (updated 8 Feb 2013)
Tolbachik (Kamchatka): effusion of fluid lava flows (updated 5 Jun 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 29 May 2013)

Eruption warning / minor activity:

Bezymianny (Central Kamchatka Depression): slow lava flow extrusion from dome (updated 10 Mar 2013)
Chirpoi (Kurile Islands, Russia): thermal anomaly at summit crater, steaming (updated 9 Jan 2013)
Copahue (Chile/Argentina): ash venting, strong degassing (updated 7 Jun 2013)
Dieng (Central Java): increased degassing (updated 28 Mar 2013)
Etna (Sicily, Italy): ash emissions and strombolian activity at New SE crater (updated 7 Jun 2013)
Galeras (Colombia): sporadic ash emissions (updated 17 May 2013)
Gamkonora (Halmahera): seismic swam, minor ash emissions (updated 27 May 2013)
Gaua (Vanuatu): possible ash eruption on 29 april (updated 29 Apr 2013)
Gorely (Southern Kamchatka): strong steaming (updated 10 Mar 2013)
Ibu (Halmahera, Indonesia): Thermal anomalies indicate continuing eruption, possible lava dome growth (updated 7 Jun 2013)
Karangetang (Siau Island, Sangihe Islands, Indonesia): hot spot visible at the summit (updated 9 Apr 2013)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 4 Apr 2013)
Kerinci (Sumatra): occasional ash explosions (updated 5 Jun 2013)
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 1 Oct 2012)
Langila (New Britain, Papua New Guinea): occasional ash explosions (updated 11 Feb 2013)
Marapi (Western Sumatra, Indonesia): intermittent mild ash explosions (updated 17 Mar 2013)
Mayon (Luzon Island): phreatic explosions (updated 3 Jun 2013)
Medvezhia (Kurile Islands, Russia): strong steaming, thermal anomaly (updated 17 Jan 2013)
Nevado del Ruiz (Colombia): sporadic ash emissions (updated 7 Jun 2013)
Nyamuragira (DRCongo): Fort dégazage du cratère sommital (updated 27 Apr 2012)
Pacaya (Guatemala): strombolian explosions from Mackenney crater, short-lived lava flow on 30 May (updated 7 Jun 2013)
Pagan (Mariana Islands): steaming, thermal anomaly (updated 12 Dec 2012)
Papandayan (West Java): strong hydrothermal activity, increased seismicity (updated 6 May 2013)
Poas (Costa Rica): Small phreatic explosions on 29 October (updated 1 May 2013)
Popocatépetl (Central Mexico): strong degassing, ash explosions, growing lava dome (updated 7 Jun 2013)
Rasshua (Central Kuriles)
Reventador (Ecuador): growing lava dome, lava flows on upper flank, frequent explosions (updated 25 May 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)
Sangeang Api (Indonesia): degassing, increased seismic activity (updated 21 May 2013)
Santa María / Santiaguito (Guatemala): advancing viscous active lava flows, weak occasional explosions (updated 4 Jun 2013)
Soputan (North Sulawesi, Indonesia): new eruption on 18 (updated 22 Apr 2013)
Suwanose-jima (Ryukyu Islands): steaming, occasional weak eruptions, elevated seismicity (updated 23 Feb 2013)
Turrialba (Costa Rica): ash venting, strong degassing (updated 22 May 2013)
Ulawun (New Britain, Papua New Guinea): ash emissions and rumblings heard (updated 23 Mar 2013)
Villarrica (Central Chile): weak deep-seated explosive activity, steaming (updated 20 Jan 2013)

Vorherige Nachrichten
Donnerstag, Jun 06, 2013
Stromboli (Eolian Islands, Italy): When observed during 3-6 June, the volcano was at normal levels of activity which had not changed significantly since our last visit 2 weeks ago. On the crater terrace, about 7 active vents were present, with eruptions every about 15-20 minutes: the two vents in the NW crater sometimes erupted simultaneously, one with low ejections of blocks, scoria and ash, the other with loud turbine-like jets of gas and lava fragments that often reached about 250 m height. The hornito at the NW crater rim was not seen erupting. ... [mehr]
Plume from Kikai on Aqua satellite image at  04h05 UTC (NASA, via Blog Culture Volcan)
Mittwoch, Jun 05, 2013
Tolbachik (Kamchatka): Activity continues with little changes, although the slow trend of decreasing seismic activity persists. A small lava lake 20 m across and weak strombolian activity were recently observed by Russian volcanologists who visited the site. Lava flows continue to be alimented and spread mainly to the SE. ... [mehr]

Dienstag, Jun 04, 2013
Pavlov (Alaska Peninsula, USA): No further activity has been detected during the past days. Alert status is at yellow. ... [mehr]
Recent MODIS hot spot data for Batu Tara volcano (ModVolc, Univ. Hawaii)
Montag, Jun 03, 2013
Mayon (Luzon Island): The alert level for the volcano has been raised by PHILVOLCS. A weak incandescence is sometimes observed at the summit, and slight inflation has been detected, suggesting that magma has started to intrude into the volcanic edifice. ... [mehr]

Freitag, Mai 31, 2013
Popocatépetl (Central Mexico): Activity has continued to decrease and there have been no new significant explosions. The number of steam-gas emissions (which sometimes contain also small amounts of ash) has dropped from an average of 5 per hour to only 2 per hour last night. ... [mehr]

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