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Volcanic activity worldwide 23 Jan 2015: Karymsky volcano, Bardarbunga, Kilauea, Ubinas, Sabancaya, ...

Freitag Jan 23, 2015 17:42 |

The southern end of the rampart; surveillance flight with the Icelandic Coast Guard 21 January 2015. Various measurements were made and the results will be published shortly. Photo: Morten S. Riishuus.(IMO)
The southern end of the rampart; surveillance flight with the Icelandic Coast Guard 21 January 2015. Various measurements were made and the results will be published shortly. Photo: Morten S. Riishuus.(IMO)
Mild strombolian explosion from Fogo on 21 Jan (image: OVCV)
Mild strombolian explosion from Fogo on 21 Jan (image: OVCV)
Map of the June 27th lava flow as of yesterday
Map of the June 27th lava flow as of yesterday
Seismic activity at Shishaldin volcano today (SSLW station / AVO)
Seismic activity at Shishaldin volcano today (SSLW station / AVO)
Degassing plume from Sabancaya last week (IGP)
Degassing plume from Sabancaya last week (IGP)
Seismic activity at Ubinas volcano during the past weeks (IGP)
Seismic activity at Ubinas volcano during the past weeks (IGP)
Bardarbunga (Central Iceland): No significant changes in seismic and volcanic activity have occurred recently at the ongoing Holuhraun eruption, but overall, a slowly decreasing trend of the activity is becoming evident. Still, magma effusion remains quite impressive, especially the large lava lake inside Baugur crater on the main part of the fissure.
Although still elevated, the average number of larger earthquakes under the caldera is decreasing slowly.

Fogo (Cape Verde): Mild explosive activity continues from the vent, at least intermittently, but there is no longer significant lava effusion. According to local observers, the eruption continues to decline overall and might be ending in a near future.
Works have started to reopen the road into the caldera to reach Ilheu de Losna and Portela/Bangaeira.

Karymsky (Kamchatka): Another small ash plume was detected by Tokyo VAAC this morning. The volcano's activity has been characterized by intermittent strombolian to small vulcanian explosions for years.
Clear weather over the past days allowed the detection of more emissions than normally (when most events unless very large go unnoticed due to cloud cover).

Kilauea (Hawai'i): The June 27th lava flow remains active, but its advance has been mainly in form small and slow breakouts along its margins, widening it. The most advanced flow front is still 600 m upslope from Highway 130 near the Pāhoa police and fire stations.

Shishaldin (United States, Aleutian Islands): The Alaska Volcano Observatory (AVO) reported "strongly elevated" temperatures in the summit crater on satellite data from yesterday. This could indicate lava is present there, possibly strombolian activity. What seems to be light ash fall deposits on the upper snowy flanks was visible on webcam images.
Seismic activity has been slightly above background, a phase of elevated activity occurred today. Aviation color code remains orange.

Sabancaya (Peru): A small magmatic intrusion has been taking place under the volcano recently, a report of the Geophysical Institute of Peru (IGP) concludes. Activity at the volcano could increase over the next few days, but no violent explosive activity is currently expected.
An increase in shallow earthquake activity with both characteristics of rock fracturing and disturbance of the hydrothermal system was noted last week. Most quakes occurred at shallow depth in an area few NNE of the volcano and south of the villages Pinchollo and Maca. The strongest quake of magnitude 3.8 on the evening of 19 Jan was felt by the local population.
Intermittent steam and bluish gas (SO2) emissions rose to a maximum of 1300 m above the crater. This and other monitored parameters showed no significant changes compared to the previous weeks.

Ubinas (Peru): No ash emissions or explosions have occurred recently at the volcano.
While overall seismicity has decreased during the past weeks, tremor and long-period earthquakes, indicators of internal fluid movements, along with degassing activity have increased again since 6 January.
Although the general tendency seems to be that the volcano is progressively calming down, the current crisis is not yet over, IGP warns. Explosions could occur again with little or no warning and it is recommended not to approach the summit crater.

Volcano Activity Summary for 23 Jan 2015:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 14 Aug 2013)
Aso (Kyushu): intense strombolian activity from main vent in Nakadake crater (updated 20 Jan 2015)
Bardarbunga (Central Iceland): lava lake, sporadic fountains, lava flow (updated 18 Sep 2014)
Barren Island (Indian Ocean): intermittent activity, likely strombolian-type and/or lava flows (updated 4 Feb 2014)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 4 Nov 2014)
Colima (Western Mexico): slowly growing lava dome, occasional explosions (updated 21 Jan 2015)
Copahue (Chile/Argentina): ash venting (updated 4 Dec 2014)
Daikoku (Volcano Islands): underwater eruption discovered on 14 Dec 2014 (updated 22 Dec 2014)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 21 Jan 2015)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
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 explosions from summit crater, intermittent lava flows (updated 19 Jan 2015)
Gamalama (Halmahera): new eruption on 18 Dec 2014 (updated 22 Dec 2014)
Hunga Tonga-Hunga Ha'apai (Tonga, Tonga Islands): surtseyan activity, growing new island (updated 16 Jan 2015)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 14 Nov 2014)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 23 Jan 2015)
Kilauea (Hawai'i): new lava flow from vents on NE flank of Pu'u 'O'o (updated 13 Aug 2013)
Kliuchevskoi (Kamchatka): strombolian activity at summit crater, possible short lava flow (updated 20 Jan 2015)
Manam (Papua New Guinea): degassing, occasional ash venting (updated 28 Aug 2013)
Marapi (Western Sumatra, Indonesia): sporadic explosions (updated 27 Mar 2014)
Nasu (Honshu)
Nishino-shima (Volcano Islands, Japan): growing island (updated 19 Jan 2015)
Nyamuragira (DRCongo): active lava lake (updated 29 Nov 2014)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 26 Feb 2014)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Poas (Costa Rica): phreatic explosions (updated 14 Oct 2014)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 3 Jan 2015)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): lava fountains, ash emissions from Tavurvur cone (updated 12 Sep 2014)
Raung (East Java): mild strombolian activity in summit crater (updated 2 Dec 2014)
Reventador (Ecuador): lava flow on southwestern flank, intermittent explosions (updated 7 Dec 2014)
Sakurajima (Kyushu, Japan): ash venting, intermittent explosions (updated 20 Jan 2015)
Sangeang Api (Indonesia): growing lava dome & lava flow (updated 7 Jul 2014)
Santiaguito (Guatemala): small explosions from the Caliente dome and active lava flow (updated 19 Jan 2015)
Semeru (East Java, Indonesia): growing lava dome, lava flow, strombolian activity (updated 26 Nov 2014)
Shiveluch (Kamchatka): growing lava dome, incandescent avalanches, occasional explosions (updated 18 Jan 2015)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 19 Jan 2015)
Soputan (North Sulawesi, Indonesia): active viscous lava flow, explosions, rockfalls, pyroclastic flows (updated 21 Jan 2015)
Tungurahua (Ecuador): moderate to strong strombolian explosions from central crater (updated 25 Sep 2014)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)
Zhupanovsky (Kamchatka, Russia): intermittent ash emissions (updated 21 Jan 2015)

Eruption warning / minor activity:

Augustine (Cook Inlet (SW Alaska))
Bagana (Bougainville Island, Papua New Guinea): ash emissions, lava dome growth (updated 21 Jan 2015)
Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Chirinkotan (Northern Kuriles): unspecified activity - possibly lava flows (updated 12 Jan 2015)
Chirpoi (Kurile Islands, Russia): hot spot visible on satellite imagery (updated 12 Jan 2015)
Etna (Sicily, Italy): sporadic weak ash emissions from New SE crater (updated 19 Apr 2014)
Fogo (Cape Verde): sporadic small explosions (updated 23 Jan 2015)
Heard (Australia, Southern Indian Ocean): possibly lava lake in summit crater (updated 5 Dec 2014)
Karangetang (Siau Island, Sangihe Islands, Indonesia): incandescent lava dome (updated 24 Oct 2014)
Kavachi (Solomon Islands): no eruption since 2007 (updated 16 Jun 2014)
Kerinci (Sumatra): seismic unrest (updated 5 Jun 2013)
Kirishima (Kyushu): degassing, alert lowered (updated 25 Oct 2014)
Krakatau (Sunda Strait, Indonesia): degassing (updated 31 Mar 2014)
Kuchinoerabu-jima (Ryukyu Islands): explosion on 3 Aug 2014 (updated 5 Dec 2014)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 13 Sep 2014)
Lopevi (Vanuatu ): eruption warning (updated 16 Dec 2014)
Mayon (Luzon Island): steaming (updated 18 Dec 2014)
Monowai (Kermandec Islands, New Zealand): frequent submarine eruptions, last confirmed during Oct 2014 (updated 14 Nov 2014)
Nevado del Ruiz (Colombia): ash emissions (updated 16 Dec 2014)
Ontake-san (Honshu): steaming, low seismic activity (updated 18 Dec 2014)
Pacaya (Guatemala): ash emissions, thermal anomaly in Mackenney crater (updated 15 Jan 2015)
Papandayan (West Java): strong hydrothermal activity, increased seismicity (updated 6 May 2013)
Pavlof (Alaska Peninsula, USA): steaming, elevated seismic activity (updated 22 Dec 2014)
Piton de la Fournaise (La Réunion): short-lived eruption during 21-22 June (updated 4 Dec 2014)
Rasshua (Central Kuriles)
Rincón de la Vieja (Costa Rica): phreatic explosions from crater lake (updated 21 Sep 2014)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): possible ash emission on 11 April (updated 12 Apr 2014)
Sangay (Ecuador): degassing (updated 19 Jan 2015)
Shishaldin (United States, Aleutian Islands): mild explosive activity, intermittent more intense phases (updated 23 Jan 2015)
Slamet (Central Java): intense strombolian explosions (updated 12 Jan 2015)
Stromboli (Eolian Islands, Italy): weak strombolian activity at summit vents (updated 13 Jan 2015)
Suwanose-jima (Ryukyu Islands): strombolian activity in summit crater (updated 21 Jan 2015)
Turrialba (Costa Rica): occasional ash emissions (updated 9 Dec 2014)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)
Villarrica (Central Chile): deep-seated strombolian explosions in summit crater (updated 18 Dec 2014)

Vorherige Nachrichten
Modis / Aqua satellite view over Kamchatka this morning
Mittwoch, Jan 21, 2015
Karymsky (Kamchatka): More explosions have occurred at the volcano. Tokyo VAAC reported ash plumes to 7-12,000 ft (2.1-3.6 km) elevation drifting SE. ... [mehr]
Glow from Klyuchevskoy's eruption, note the lava flow on the upper flank
Dienstag, Jan 20, 2015
Kliuchevskoi (Kamchatka): The eruption at the volcano has intensified during the past 24 hours. ... [mehr]
Observed caldera subsidence versus time - if the modeled curve is correct, it should flatten out in March this year and might mean the end of the eruption (source: visir.is)
Montag, Jan 19, 2015
Bardarbunga (Central Iceland): According to Icelandic volcanologist Haraldur Sigurðsson, it is reasonable to predict that the eruption might be ending in March this year. ... [mehr]
Strombolian activity at Klyuchevskoy at dusk (KVERT webcam)
Sonntag, Jan 18, 2015
Kliuchevskoi (Kamchatka): Mild strombolian activity continues at the summit crater, producing small ash plumes that drift one after the other from the volcano. A short lava flow might still be active on the southeast side, but this is not certain from available imagery. ... [mehr]
Dilute ash emissions from Etna's NE crater on 15 Jan 2015 (Etnatrekking webcam Linguaglossa)
Samstag, Jan 17, 2015
Etna (Sicily, Italy): (16 Jan) Unrest continues at the summit craters. After strombolian activity from the Central Crater (Voragine) had ceased around 13 Jan, weak ash emissions occurred from the North-East crater yesterday. ... [mehr]

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