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Volcanic activity worldwide 19 Aug 2013: Fuego, Sakurajima, Popocatépetl

Monday Aug 19, 2013 17:04 PM |

View of Popocatépetl this morning
View of Popocatépetl this morning
Fuego's active lava flows towards the Taniluya (l) and Ceniza canyon (r) last night
Fuego's active lava flows towards the Taniluya (l) and Ceniza canyon (r) last night
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.
Vulcanian explosions, caused by a solidified plug of magma in the upper conduit expelled when pressure is high enough, are very common at the volcano, in particular during the past few years since a new crater (Showa) has become the focus of activity. The number of counted explosions in 2013 has recently exceeded 500. Along with some eruptions in late July, yesterday's one has been one of the largest. A list of explosions can be found here.

Popocatépetl (Central Mexico): Activity has not changed much and been relatively calm with 1-2 usually small emissions on average per hour. Glow remains visible at the summit.
Accompanied by low-amplitude high frequency tremor, stronger ash emissions on 17 August occurred between 11:20 and 13:30(local time) and produced a plume of 1.5 km height, drifting WSW. Ash fall occurred in Tetela del volcán, Ocuituco, Yecapixtla, Tlayacapan, Cuautla, Ayala and Cuernavaca.

Fuego (Guatemala): A surge in effusive activity has occurred overnight. The two active lava flows towards the Taniluya (western flank) and Ceniza (southern flank) canyons increased to 600 and 800 m length, respectively.
Numerous incandescent avalanches detach from the flow fronts and glowing blocks reach the vegetation limit.
... [read more]

Volcano Activity Summary for 19 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 16 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, lava flow on eastern flank, avalanches (updated 8 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 19 Aug 2013)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 13 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 17 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)
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): Small phreatic explosions on 29 October (updated 1 May 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)

Previous news
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]
SO2 plume from Sakurajima volcano (NOAA)
Wednesday, Aug 14, 2013
El Hierro (Canary Islands, Spain): Earthquake activity has been calmer today. So far, only 9 tiny quakes (all below magnitude 2) have been recorded under the island. ... [more]
Map of recent earthquakes under El Hierro (IGN)
Tuesday, Aug 13, 2013
El Hierro (Canary Islands, Spain): The number of earthquakes has increased from averages of 5-10 to about 30 during the past few days. The location of the recent quakes is in a N-S elongated layer about 10-12 km depth in the western part of the island under the El Golfo bay. So far, no quakes above magnitude 3 have occurred. ... [more]
Monday, Aug 12, 2013
Shiveluch (Kamchatka): The volcano has apparently entered a phase of elevated explosive activity. Over the past days, several explosions have occurred from the growing lava dome and produced ash plumes rising to up to about 23,000 ft (7 km) altitude. Small block avalanches and pyroclastic flows accompany the process as well. ... [more]

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