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

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.
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from IMO's latest update:
"At 00:16 UTC today, a magnitude 5.3 earthquake occurred in the caldera of Bárðarbunga. At 02:50 UTC, another similar-sized earthquake (magnitude 5.2) took place in the same region.

...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.
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The intrusion is now 45 km long and roughly 20 km deep, but so far remains mostly below 5 km depth. Horizontal spreading between the Dyngjuháls (DYNC) and Kverkfjöll (Gengissig, GSIG) GPS stations approaches 50 cm.
At the moment, the expected most likely outcome scenario is a moderate to large fissure eruption, should the dyke eventually breach surface. The question is when this will occur, and where the magma exactly will be coming from:


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.
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The report mentions that the eruption could have been triggered by a magnitude 5.7 earthquake that occurred earlier that day in over 200 km distance. Whether such a link is reasonable or not remains questionable.

Volcano Activity Summary for 27 Aug 2014: