Bardarbunga, Vatna glacier, Iceland, 17th August 2014 global emergency alert updates

Bardarbunga, Vatna glacier, Iceland, 17th August 2014 global emergency alert updates

Sunday, 19th October 2014 :: 16:59:13 UTC

First alert: 17th August 2014.

Volcano Activity in Iceland on Sunday, 17 August, 2014 at 04:14 (04:14 AM) UTC.

(Regardless of site’s conventions on zone times UTC, GMT, UT1, +saving time, etc, earthquakes are clearly increasing, and if there is no ‘saving time’ lapse for the Hungarian people who maintain RSOE EDIS Disaster Emergency Information Service, the two hours lapse in Iceland earthquakes is happening for two different events).

Seismic activity in Bardarbunga volcano has increased. A seismic swarm has been ongoing since 03AM this morning, and near continuous earthquakes have been occurring since then. The depths of earthquakes in the present swarm are in the upper crust and their magnitudes are mainly around 1.5; a few earthquakes are of magnitude greater than ML3. Long-term seismic and GPS data indicate that there is increased unrest in the northwestern region of Vatnajokull glacier, where Bararbunga is located: Over the last seven years seismic activity has been gradually increasing in Bar?arbunga and the fissure swarm north of the volcano. This activity dropped down at the Grímsvotn eruption in May 2011, but soon after, the activity started to gradually increase again and has now reached similar level of activity to that just before the Grímsvotn eruption. Earlier this year, in the middle of May 2014, there was a small swarm of over 200 events and now the present swarm has already generated at least 300 earthquakes. Since early June 2014, displacements at GPS stations around Vatnajokull (Hamarinn, Grímsfjall, Vonarskar and Dyngjuhals) show an increased upward movement and away from Bar?arbunga. Together, these two systems indicate magma movements in Bararbunga. Due to increased seismicity IMO has decided to turn volcano Bar?arbunga status to yellow. In case of a sub-aerial eruption, an ash plume of potential concerns for aviation will be generated.’

To see the list of current updates click here.

Wednesday, 15 October, 2014 at 17:11 UTC update

‘An increased number of earthquakes have been detected in and around Barbarbunga volcano under Vatnajokull glacier in the past days. In the last 24 hours, almost 130 earthquakes have been detected at Barbabunga and about 30 in the northern part of the intrusive dike. The dike channels magma from Barbarbunga to the Holuhraun eruption site north of Vatnajokull. No quakes above 5.0 in magnitude have been detected in the area since October12, but five quakes between magnitude 4.5 and 4.8 hit yesterday, the Icelandic Met Office reported in its latest update this morning. The eruption continues at a similar intensity. It was clearly visible on webcams from midnight until almost 8 this morning.’

Friday, 17 October, 2014 at 04:10 UTC latest update

‘The eruption continues from the Holuhraun fissure with an amazing lava output at approx. 350 cubic meters per second. A large lava pond has formed over the merged main craters on the central part of the fissure, from where a river of lava flows into the plain. Earthquakes have increased under the Bardarbunga caldera, which could be a sign that something is about to change. The Icelandic Met office’ recent updates writes: “During the last 24 hours, about 70 earthquakes have been detected at Bar?arbunga and a dozen in the northern part of the dike. This is somewhat less activity than 24 hours earlier. Two quakes over five in magnitude occurred at the northern caldera rim; an M5.4 at 11:16 yesterday and an M5.0 in the early hours of the morning, at 03:14 today. One earthquake M4.2 occurred later this morning, at 09:25, in a similar location. Observations of deep thudding sounds were received yesterday while the large earthquake occurred, possibly as a consequence thereof. Scientist went to Askja yesterday but found no signs of a rockfall, which could have caused the noises. Possibly the sounds were from jet aircrafts, passing at the same time.” (IMO Icelandic Met Office)

If you click on the info icon on the right of the row for any of the events in the RSOE EDIS webpage events list, which you will see by scrolling down the page showing the world map, you will see more info in another window. At the top of that info you have various tabs you can inspect. I include a link here.

Newsweek magazine review on the state of emergency in October the 15th

IMO site link.

My blog posts on seismic crises and other related issues are tagged and categorised as ‘global issues’

I think you should read and spread them all over the world.

 

Acerca de María Cristina Alonso Cuervo

I am a teacher of English who started to write this blog in May 2014. In the column on the right I included some useful links and widgets Italian is another section of my blog which I called 'Cornice Italiana'. There are various tags and categories you can pick from. I also paint, compose, and play music, I always liked science, nature, arts, language... and other subjects which you can come across while reading my posts. Best regards.
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