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Volcanoes Today, 29 Aug 2014: Bardarbunga volcano, Poas, Rabaul (Tavurvur)

Friday Aug 29, 2014 18:00 PM |
Oblique aerial view of the eruptive fissure
Oblique aerial view of the eruptive fissure
Aerial view of the eruptive fissure this night (Iceland Coast Guard)
Aerial view of the eruptive fissure this night (Iceland Coast Guard)
Location of the eruptive fissure this morning (RUV)
Location of the eruptive fissure this morning (RUV)
Lava fountains and ash column from Tavurvur volcano (image: Emma Edwards via Mark Tarello @mark_tarello / twitter)
Lava fountains and ash column from Tavurvur volcano (image: Emma Edwards via Mark Tarello @mark_tarello / twitter)
The first of 3 phreatic explosions at Poás
The first of 3 phreatic explosions at Poás
Bardarbunga (Iceland): Two aerial pictures released by the Icelandic Civil Protection showing the eruptive fissure, the spatter ramparts that formed there as well as the new lava flows.
The eruption which lasted only a few hours probably set a record in the ration between public attention (extremely large) versus size (very small).
... [read more]
...29 Aug:
First pictures of the new eruptive fissure, taken from a helicopter of the Icelandic Coast Guard were released. They show a row of spatter cones and small lava flows that were erupted from the fissure, about 900 m long and located 5 km from the northern edge of the Dyngjuköll glacier.
Current webcam images and other sources do not indicate ongoing activity except steaming.
Seismic activity has decreased as a result of the pressure release, however a significant amount of earthquakes is still detected in the magma dike, between the eruption site and south to about 5 km into Dyngjujökull. (IMO)
...29 Aug:
An exclusion zone 1.5 km above and 15 km around the eruption site is in place.
The circumstances around the eruption are somewhat enigmatic. It is interesting to note that the large intrusion, estimated to contain approx. 350 million cu meters of magma on a length of 40 km only produced a tiny fissure eruption (so far, at least).
... [read more]
...29 Aug:
An eruption started in Holuhraun north of Dyngjujökull at around 00:02. Seismic tremor was observed on all seismic stations and the web camera installed in the area by Mila has showed some nice pictures of the eruption. It is a small fissure eruption and at 02:40 AM the activity appears to have decreased. (IMO)
Note: When more information becomes available, it will be posted on our Special Update Page.

Rabaul (Tavurvur) (New Britain, Papua New Guinea): A large explosive eruption began at Tavurvur volcano (Rabaul caldera) this morning.
The eruption seems to be similar to a paroxysm on Etna.
... [read more]

Poas (Costa Rica): A series of 3 phreatic explosions occurred at the crater lake after 14:45 local time on Wednesday. The eruptions followed a phase of relative calm during the past months and ejected jets of steam and mud to heights of approx. 100-200 m.
Tidigare Nyheter
Image of one of the ice cauldrons (image: Civil Protection)
Thursday, Aug 28, 2014
Bardarbunga (Iceland): No significant changes have occurred today. ... [mera]
Thermal image of the upper Sciara del Fuoco of Stromboli
Wednesday, Aug 27, 2014
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. ... [mera]
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. ... [mera]
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. ... [mera]
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. ... [mera]

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