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Volcanic activity worldwide 23 Aug 2013: Santa María / Santiaguito, Sakurajima

Friday Aug 23, 2013 17:04 PM |

MODIS hot spot data (past 7 days) for Sakurajima volcano (ModVolc, Univ. Hawaii)
MODIS hot spot data (past 7 days) for Sakurajima volcano (ModVolc, Univ. Hawaii)
Yesterday's eruption of Santiaguito (webcam image: INSIVUMEH, annotated by Blog Culture Volcan)
Yesterday's eruption of Santiaguito (webcam image: INSIVUMEH, annotated by Blog Culture Volcan)
Sakurajima (Kyushu, Japan): On 21 August, the volcano had at least 8 (!) vulcanian-type explosions with ash plumes rising up to 15,000 ft (4,5 km) altitude that often drifted over the bay and Kagoshima city, causing ash fall there. Some of the explosions can be seen on the following time-lapse video. The volcano has been in an elevated state of activity during the past weeks. A significant hot spot is visible on MODIS data, suggesting that magma levels are high in the crater and the presence of significant amounts of still hot fresh deposits on the flanks.

... [read more]

Santa María / Santiaguito (Guatemala): A major eruption occurred yesterday evening. Starting at 17:45 (local time), the top part of the Caliente lava dome collapsed and produced a series of relatively large pyroclastic flows and explosions. Ash plumes rose more than 2 km to elevations of 4 km altitude.
The cause of the eruption was likely the accumulation of pressurized magma and gas under the dome composed of viscous (solid) lava.
... [read more]

Volcano Activity Summary for 23 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 17 Aug 2013)
Lokon-Empung (North Sulawesi, Indonesia): steaming, degassing, occasional ash explosions (updated 25 Jul 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 22 Jul 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)
Manam (Papua New Guinea): occasional explosions (updated 8 Aug 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 8 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)
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)

Previous news
Glowing rock avalanche from Kizimen last night
Thursday, Aug 22, 2013
Kizimen (Kamchatka): The lava dome continues to grow at the top of the volcano and produce incandescent rockfalls and small pyroclastic flows, generating ash plumes. A new prominent spine is being extruded at the top and visible on the webcam. The following time-lapse movies show this activity during the day and night: ... [more]
Phreatic explosion at White Island this morning (GeoNet webcam)
Tuesday, Aug 20, 2013
Iliwerung (Lesser Sunda Islands): A submarine eruption has likely occurred this morning in Indonesia. VSI raised the alert level of Iliwerung volcano from 1 (normal) to 2 (watch) following increased seismic and visual activity from an underwater flank vent called Gunung Hobal. ... [more]
View of Popocatépetl this morning
Monday, Aug 19, 2013
Sakurajima (Kyushu, Japan): A very large vulcanian explosion, one of the largest during this year occurred yesterday morning. It produced a mushroom shaped ash column that rose to about 20,000 ft (6 km) altitude that drifted over the Kagoshima town where ash fall occurred. ... [more]
Aerial photo of the NE rim of the Kverkjökull glacier with deposits of the flood and ash from the phreatic explosion (
Saturday, Aug 17, 2013
Kverkfjöll (Eastern Iceland): A small phreatic eruption seems to have taken place yesterday at the ice-covered Kverkfjoell central volcano. The steam-driven (no fresh magma involved) explosion followed a small glacial flood on 15 August the Kverkjökull glacier released into the Volga river and was probably a result of the pressure release during the flood. ... [more]
MODIS hot spot at Veniaminof volcano (past 7 days, Univ. Hawai'i)
Friday, Aug 16, 2013
Karymsky (Kamchatka): An explosion probably occurred last night (inferred from seismic data), and might have produced an ash plume of up to 20,000 ft (7.5 km) elevation, Tokyo VAAC reported. ... [more]

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