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Volcanic activity worldwide 30 Aug 2013: Dukono, Momotombo, Santa María / Santiaguito, Pacaya, Fueg...

Friday Aug 30, 2013 10:25 AM |

Location of quakes during the past 2 weeks (IGN)
Location of quakes during the past 2 weeks (IGN)
SO2 plume from Ambrym volcano (NOAA)
SO2 plume from Ambrym volcano (NOAA)
Current seismic recording from Veniaminof (VNHG station, AVO)
Current seismic recording from Veniaminof (VNHG station, AVO)
SO2 plume from Popocatépetl yesterday (NOAA)
SO2 plume from Popocatépetl yesterday (NOAA)
Pacaya volcano last evening (INSIVUMEH)
Pacaya volcano last evening (INSIVUMEH)
Location of yesterday's earthquake under Momotombo volcano, Nicaragua
Location of yesterday's earthquake under Momotombo volcano, Nicaragua
El Hierro (Canary Islands, Spain): Small earthquakes (mostly below magnitude 2) continue to occur frequently (10-20 per day), mostly under the central part of the island. Right now, this activity seems to be picking up, but it is too early to see if this evolves into another swarm.

Manam (Papua New Guinea): Explosions occurred this morning, producing ash plumes rising to 8,000 ft (2.4 km) altitude, VAAC Darwin reported.

Ijen (East Java, Indonesia): CVGHM reported that during 1 July-25 August diffuse white plumes rose 100-150 m above Ijen's crater, the lake water was light green, and seismicity decreased.
... [read more]

Dukono (Halmahera): VAAC Darwin reported an ash plume from the volcano at 8,000 ft (2.4 km) altitude yesterday morning. This might have originated from a larger than usual explosion.
The rarely visited volcano is one of Indonesia's almost permanently active volcanoes and often has strombolian to vulcanian activity.

Ambrym (Vanuatu): A large SO2 plume is drifting NW from the volcano, where at least two lava lakes in the Benbow and Marum craters remain active.

Veniaminof (Alaska Peninsula, USA): The eruption at the intracaldera cone of Veniaminof Volcano continues. The seismicity over the past 24 hours has been characterized by discreet episodic bursts of tremor, likely associated with lava effusion and minor ash emission.
Satellite images of the volcano over the past 24 hours have shown prominent thermal signals at the intracaldera cone, although views of the volcano have been infrequent due to cloud cover. (AVO daily update)

Popocatépetl (Central Mexico): Activity remains low with few (less than 1 per hour) weak emissions of steam and gas. Abundant SO2 output and glow at the summit indicate continuing lava extrusion.

Santa María / Santiaguito (Guatemala): INSIVUMEH reports strong rockfall activity from the steep-sided lava flows, suggesting that several of them are being alimented at the moment. Strong degassing produces a steam column rising up to about 1 km above the dome.

Pacaya (Guatemala): Weak strombolian activity and the effusion of lava flows continues. The activity can be seen from the capital and the coast.

Fuego (Guatemala): The lava flows were no longer active yesterday morning. Activity consisted in weak to moderate strombolian explosions with incandescent material projected to up to 150 m above the crater, and ash plumes of a few 100 m height.

Momotombo (Nicaragua): A swarm of quakes including a shallow magnitude 3.8 felt earthquake occurred yesterday morning (16:38 GMT) at 3.5 km depth under the NW flank of the volcano. There are no reports of other unusual activity at the volcano.

Volcano Activity Summary for 30 Aug 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 30 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 30 Aug 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 30 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 28 Aug 2013)
Lokon-Empung (North Sulawesi, Indonesia): steaming, degassing, occasional ash explosions (updated 25 Jul 2013)
Manam (Papua New Guinea): occasional explosions (updated 30 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 and lava flow (updated 30 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 28 Aug 2013)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 30 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)
Suwanose-jima (Ryukyu Islands): Mt Ontake volcano of Suwanose-jima Island, Japan (updated 28 Aug 2013)
Tinakula (Santa Cruz Islands, Solomon Islands): increased activity at the volcano (updated 8 Feb 2013)
Veniaminof (Alaska Peninsula, USA): effusion of lava flows (updated 30 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 30 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)
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
Klyu seen from the KVERT observatory this morning; the lava flow is indicated by the white plume rising on the right side of the upper flank
Wednesday, Aug 28, 2013
Kliuchevskoi (Kamchatka): A small lava flow has started to descend on the upper northern flank of the volcano. Sometimes intense strombolian continues at the summit vent. Glowing blocks from the lava flow often detach from the front and roll down the steep slope of the volcano. No significant ash emissions have occurred so far. ... [more]
MODIS hot spot data (past 7 days) for Tavurvur volcano (ModVolc, Univ. Hawaii)
Monday, Aug 26, 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. ... [more]
MODIS hot spot data (past 7 days) for Sakurajima volcano (ModVolc, Univ. Hawaii)
Friday, Aug 23, 2013
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. ... [more]
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]

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