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Volcanic activity worldwide 6 Aug 2014: Etna, Stromboli, Fuego, Ubinas, Sakurajima

Wednesday Aug 06, 2014 14:59 PM |

Thermal image of Etna's active lava flows from the effusive vent at the base of the NE crater (Monte Cagliato thermal webcam, INGV Catania)
Thermal image of Etna's active lava flows from the effusive vent at the base of the NE crater (Monte Cagliato thermal webcam, INGV Catania)
Increased seismic activity at Fuego yesterday (FG3 station, INSIVUMEH)
Increased seismic activity at Fuego yesterday (FG3 station, INSIVUMEH)
Small eruption at Ubinas volcano this morning
Small eruption at Ubinas volcano this morning
Stromboli (Eolian Islands, Italy): According to the local mountain guides and visitors, explosive activity at Stromboli is currently at elevated levels. Several vents in the crater terrace produce strong and frequent strombolian explosions.
Access to the summit area is frequently closed, but for those visiting the island at the moment, good viewpoints are also found along the Sciara del Fuoco up to 400 m elevation (permitted limit).

Etna (Sicily, Italy): Decreasing tremor and weakening thermal signals suggest that the explosive / effusive activity from the vents at the eastern foot of the NE crater still continues, but at reduced rate. At least one lava flow seems to be still active.

Sakurajima (Kyushu, Japan): Activity has been unusually low at the volcano since about 2 weeks. The first explosion during August occurred this morning, producing a plume that rose less than 1 km above the summit.

Fuego (Guatemala): An increase in activity with more frequent and stronger explosions took place yesterday, but the volcano has again been calmer today.
The volcano observatory reported that explosions with ash plumes of up to 800 m height occurred at rates of 3-4 per hour and produced a plume drifting for about 12 km W and NW. Ash fell on the villages of Morelia, Santa Sophia and Yepocapa.
The explosions were accompanied by moderate booms and shock waves that let roofs and windows of houses in a radius of 6 km vibrate.

Ubinas (Peru): Activity remains low. A few small ash explosions occurred today, with plumes rising a few 100 m above the crater.

Volcano Activity Summary for 6 Aug 2014:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 14 Aug 2013)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 27 May 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 7 Jul 2014)
Colima (Western Mexico): extrusion of lava flow from summit, intermittent explosions (updated 10 Apr 2014)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 4 Aug 2014)
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 explosions from summit crater, intermittent lava flows (updated 6 Aug 2014)
Ibu (Halmahera, Indonesia): growing lava dome, occasional ash emissions (updated 28 Jul 2014)
Kilauea (Hawai'i): new lava flow from vents on NE flank of Pu'u 'O'o (updated 13 Aug 2013)
Kuchinoerabu-jima (Ryukyu Islands): explosion on 3 Aug 2014 (updated 4 Aug 2014)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 25 Jul 2013)
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): lava effusion enlarging the new island (updated 28 Jul 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)
Reventador (Ecuador): ash emissions, explosions (updated 28 Jul 2014)
Sakurajima (Kyushu, Japan): ash venting, intermittent explosions (updated 6 Aug 2014)
Sangeang Api (Indonesia): growing lava dome & lava flow (updated 7 Jul 2014)
Santiaguito (Guatemala): generation of hot lahars (updated 4 Aug 2014)
Semeru (East Java, Indonesia): growing lava dome & lava flow, sporadic explosions (updated 23 Jul 2014)
Shiveluch (Kamchatka): growing lava dome, incandescent avalanches, occasional explosions (updated 7 Jul 2014)
Sinabung (Sumatra, Indonesia): effusion of viscous lava, steaming, ash emissions (updated 15 Jul 2014)
Slamet (Central Java): strombolian explosions from central crater (updated 4 Jul 2014)
Stromboli (Eolian Islands, Italy): strombolian explosions from summit crater, intermittent lava flows (updated 6 Aug 2014)
Suwanose-jima (Ryukyu Islands): strombolian activity in summit crater (updated 19 Jun 2014)
Tungurahua (Ecuador): new seismic unrest, ash emissions (updated 4 Aug 2014)
Ubinas (Peru): degassing, sporadic small explosions and ash venting (updated 6 Aug 2014)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)
Zhupanovsky (Kamchatka, Russia): intermittent ash emissions (updated 28 Jul 2014)

Eruption warning / minor activity:

Aso (Kyushu): occasional weak ash emissions (updated 23 Jul 2014)
Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Chirpoi (Kurile Islands, Russia): hot spot visible on satellite imagery (updated 1 May 2014)
Etna (Sicily, Italy): new lava flow from vent at E base of NE crater (updated 19 Apr 2014)
Heard (Australia, Southern Indian Ocean): possibly lava lake in summit crater (updated 27 May 2014)
Karangetang (Siau Island, Sangihe Islands, Indonesia): lava extrusion at summit crater, strombolian activity, glowing avalanches (updated 28 Jul 2014)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 3 Jul 2014)
Kavachi (Solomon Islands): no eruption since 2007 (updated 16 Jun 2014)
Kelud (East Java): steaming, activity at crater unknown (updated 2 Mar 2014)
Kerinci (Sumatra): seismic unrest (updated 5 Jun 2013)
Krakatau (Sunda Strait, Indonesia): degassing (updated 31 Mar 2014)
Medvezhia (Kurile Islands, Russia): strong steaming, thermal anomaly (updated 17 Jan 2013)
Nyamuragira (DRCongo): lava lake in summit crater (updated 4 Aug 2014)
Papandayan (West Java): strong hydrothermal activity, increased seismicity (updated 6 May 2013)
Piton de la Fournaise (La Réunion): short-lived eruption during 21-22 June (updated 23 Jun 2014)
Poas (Costa Rica): occasional small phreatic explosions, intense degassing (updated 23 Jun 2014)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 4 Aug 2014)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): weak ash explosions (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)
San Cristobal (Nicaragua): possible ash emission on 11 April (updated 12 Apr 2014)
San Miguel (El Salvador): ash emissions, small explosions, increasing tremor (updated 23 Jul 2014)
Sangay (Ecuador): degassing (updated 24 May 2013)
Shishaldin (United States, Aleutian Islands): possibly lava fountaining episodes in summit crater (updated 23 Jul 2014)
Soputan (North Sulawesi, Indonesia): degassing, seismic crisis, eruption warning (updated 1 May 2014)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)

Previous news

Tuesday, Aug 05, 2014
Kilauea (Hawai'i): (4 Aug) This map (USGS) shows the June 27th flow at Puʻu ʻŌʻō in Kilauea’s East Rift Zone. The area of the flow as mapped on July 18 is shown in pink, while widening of the flow as of July 29 is shown in red. ... [more]
Thermal image of Etna's active lava flows from the effusive vent at the base of the NE crater (Monte Cagliato thermal webcam, INGV Catania)
Monday, Aug 04, 2014
Etna (Sicily, Italy): No significant changes have occurred at the volcano recently. Lava continues to arrive at the vent(s) at the eastern base of the NE crater, where strombolian activity is building up a complex cone and several small lava flows are spreading towards the Valle del Bove. ... [more]

Wednesday, Jul 30, 2014
Kilauea (Hawai'i): The June 27 flow front has advanced more rapidly over the past four days, and is now 4.2km (2.6mi) from the vent (Seen in first photo below). This recent increased advance rate is due to the confinement of the flow against the slopes of an older perched lava channel, from 2007. The advance rate will likely drop in the coming days as the flow passes the confines of the perched channel and spreads out on flatter topography. ... [more]
Ash emission of Tungurahua volcano last Sunday (photo: P. Espín OVT/IG-EPN)
Tuesday, Jul 29, 2014
Tungurahua (Ecuador): Following more than 2 months of calm, the volcano is probably about to enter a new eruptive phase, a special bulletin of Ecuador's Geophysical Institute (IGPEN) informs. ... [more]
Nishinoshima on 23 July (image: Japanese Coast Guard)
Monday, Jul 28, 2014
Summary of some of the most significant events during the past days: ... [more]

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