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Volcanic activity worldwide 27 Aug 2014: Stromboli volcano, Bardarbunga, Kilauea, Sabancaya, Fuego, ...

Wednesday Aug 27, 2014 17:05 PM |

Thermal image of the upper Sciara del Fuoco of Stromboli
Thermal image of the upper Sciara del Fuoco of Stromboli
Today's earthquakes in the Dyngjujökull glacier and Askja (triangle) area
Today's earthquakes in the Dyngjujökull glacier and Askja (triangle) area
Location of earthquakes since the start of the crisis. The current position of the magma intrusion front is marked by the youngest quakes (red) (IMO)
Location of earthquakes since the start of the crisis. The current position of the magma intrusion front is marked by the youngest quakes (red) (IMO)
View of the pad of lava with the equivalent view from a thermal camera. (HVO
View of the pad of lava with the equivalent view from a thermal camera. (HVO
Steam plume from Popocatépetl yesterday
Steam plume from Popocatépetl yesterday
Seismic signal of the phreatic explosion at Sabancaya on 25 Aug (IGP)
Seismic signal of the phreatic explosion at Sabancaya on 25 Aug (IGP)
Stromboli (Eolian Islands, Italy): The lava flow in the new channel at the eastern side of the Sciara del Fuoco remains well alimented. After a calmer weak, it is now again reaching the sea, at least intermittently.

Bardarbunga (Iceland): Over 800 earthquakes have occurred today so far, mostly now beyond the edge of the Dyngjujökull glacier. The crisis is showing no signs of decreasing. The intrusion itself has migrated about 1 km northwards since yesterday, and approaches the Asjka volcanic complex, which is a worrying development. A magnitude 4 earthquake occurred this morning under the eastern caldera rim of Askja (s. image).
IMO does not think an eruption is imminent and announced that it will from now on only post updates once a day (around noon) unless the situation escalates.
... [read more]
...27 Aug:
The intense seismic crisis caused by a significant laterally migrating magma intrusion continues to evolve with little changes.
Earthquake activity has been a bit weaker yesterday, only to pick up again today. Two more magnitude 5+ quakes occurred after midnight near the caldera of the Bardarbunga central volcano.
... [read more]

Bagana (Bougainville Island, Papua New Guinea): Eruptive activity continues at the volcano. An ash plume at approx. 7,000 ft (2.1 km) altitude was spotted by Darwin VAAC extending 50 km to the SW yesterday.

Batu Tara (Sunda Islands, Indonesia): A new ash plume extending approx. 50 km NW was reported yesterday on satellite imagery by Darwin VAAC.
This follows a relatively long interval of several weeks since the last ash plume spotted in early July.

Kilauea (Hawai'i): The lava flow branch that entered and followed a deep ground crack on Kīlauea's East Rift Zone last week has resurfaced and is now forming a small lava island inside the forest. Its farthest point is 11.4 km (7.1 miles) from the the vent on Puʻu ʻŌʻō, and 3.1 km (1.9 miles) from the eastern boundary of the Wao Kele o Puna forest reserve.

Popocatépetl (Central Mexico): Activity remains essentially unchanged and has been relatively low. The volcano emits a gas-steam plume most of the time and occasionally has small explosions that eject small amounts of ash.

Fuego (Guatemala): Activity has been stable at average levels with intermittent weak to moderate strombolian-type explosions.
During the past 24 hours, ash plumes rose up to 800 m and drifted up to 12 km west and southwest. The stronger explosions were accompanied by shock waves. Incandescent material was seen ejected to approx. 100 m above the crater.

Sabancaya (Peru): A phreatic explosion occurred at the volcano on the evening of 25 Aug at 20:39 local time, Peru's Geophysical Institute (IGP) informed.
The eruption was not observed directly, but inferred from its seismic trace. A swarm of long-period quakes followed the eruption, suggesting internal fluid movements.
... [read more]

Volcano Activity Summary for 27 Aug 2014:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 14 Aug 2013)
Bagana (Bougainville Island, Papua New Guinea): ash emissions, lava dome growth (updated 27 Aug 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 27 Aug 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 21 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 27 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)
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 19 Aug 2014)
Sakurajima (Kyushu, Japan): ash venting, intermittent explosions (updated 19 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)
Shishaldin (United States, Aleutian Islands): small lava lake in summit crater (updated 14 Aug 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 14 Aug 2014)
Stromboli (Eolian Islands, Italy): continuous effusion of lava finds new pathway (updated 27 Aug 2014)
Suwanose-jima (Ryukyu Islands): strombolian activity in summit crater (updated 19 Jun 2014)
Tungurahua (Ecuador): moderate to strong strombolian explosions from central crater (updated 24 Aug 2014)
Ubinas (Peru): degassing, sporadic small explosions and ash venting (updated 22 Aug 2014)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)
Zhupanovsky (Kamchatka, Russia): intermittent ash emissions (updated 21 Aug 2014)

Eruption warning / minor activity:

Aso (Kyushu): occasional weak ash emissions (updated 23 Jul 2014)
Bardarbunga (Iceland): Ongoing northward migration of seismic activity (updated 21 Aug 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): strombolian explosions and lava flow effusion from NSEC (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)
Kerinci (Sumatra): seismic unrest (updated 5 Jun 2013)
Krakatau (Sunda Strait, Indonesia): degassing (updated 31 Mar 2014)
Kuchinoerabu-jima (Ryukyu Islands): explosion on 3 Aug 2014 (updated 21 Aug 2014)
Mayon (Luzon Island): slowly growing lava dome (updated 17 Aug 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 27 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)
Sabancaya (Peru): Sabancaya volcano (Peru): phreatic eruption on 25 August (updated 27 Aug 2014)
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)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)

Previous news
View onto the upper part of the lava flow early on the 10th of August, showing the trajectory of the lava from the vent down onto and across the plateau before it flows down the Sciara del Fuoco. Only the vent at the origin and the overflow from the plateau are visible from the 400 m webcams.
Tuesday, Aug 26, 2014
Stromboli (Eolian Islands, Italy): (25 Aug) After fluctuating and unstable effusive activity during the last few days, the vent seems to have once again increased its magma effusion rate and triggered a new pathway for the lava to flow down the upper part of the Sciara del Fuoco. ... [more]
Map indicating all earthquakes that occured since 16 August, showing their spatial migration in the last 10 days (red = today)
Monday, Aug 25, 2014
Bárdarbunga (Iceland): The latest offical briefing from the Icelandic Met Office confirms that seismic activity continues to migrate northwards with earthquakes below Bárðarbunga becoming weaker. An eruption in the Bárdarbunga caldera is therefore at present considered to be less likely. ... [more]
Thermal image of the upper Sciara del Fuoco of Stromboli
Sunday, Aug 24, 2014
Stromboli (Eolian Islands, Italy): The lava flow continues to be active, but the effusion rate has been more and more unstable and fluctuates a lot. This results in lava flows taking different (often overlapping) paths on the upper portion of the Sciara del Fuoco. ... [more]
Location of today's earthquakes showing the propagation of the intrusion to the north
Saturday, Aug 23, 2014
Bárdarbunga (Iceland): Even if Bárðarbunga's eruption continues and breaks the ice, allowing explosions between magma and water/ice to eject significant amounts of ash, most experts agree that a scenario like the Eyjafjallajökull back in 2010 is unlikely to repeat itself. ... [more]
Powerful vulcanian explosion at Ubinas yesterday
Friday, Aug 22, 2014
Fuego (Guatemala): Explosive activity has been relatively high recently. Individual eruptions have been producing ash plumes that rose to up to 1 km and incandescent material was seen rising 150-200 m above the crater. ... [more]

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