Earthquake meters showed clear volcanic unrest around 6 PM on Saturday
Posted by Target on 5/21/2011, 9:20 pm
Grimsvotn erupts often but the eruptions are not always small:

'Laki (Skaftar Fires) and Grimsvotn eruptions 1783-1785
The eruption at Laki began on 8th June 1783 with a brief explosive event on a short fissure, and lava rapidly began to flow into the Skaftfi river gorge. Lava reached the lowlands, 35 km away, four days later.'

'Laki eruption created a 25 km long fracture and basalt lava flows extended 70 km.  The lava flow covered 565 square km (14.7 cubic km). Large amounts of gas were produced in the eruption which covered most of Europe in a blue haze.'

'Fluorine was released by the eruption and cattle died from eating the contaminated grass. Over 200 000 livestock were killed in Iceland and the resulting famine resulted in 10 000 deaths.'
http://www.volcanolive.com/grimsvotn.html







http://sacs.aeronomie.be/









Biggest earthquakes during the last 48 hours
Size  Time  Quality  Location
4.1  21 May 18:42:19  39.3  36.2 km NE of Snfell
3.8  21 May 19:53:42  Checked  2.7 km SW of Grímsfjall
3.7  21 May 18:34:06  51.7  9.0 km SW of Hvannadalshnjúkur
3.6  21 May 18:45:37  90.0  5.3 km SE of Grímsfjall
3.3  21 May 18:42:42  52.1  25.2 km ENE of Laki
3.1  21 May 19:44:41  40.9  16.8 km ESE of Álftavatn



'21.05.2011 | 19:33'
'Imminent Eruption in Grímsvötn in Iceland'
'All signs seem to indicate that an eruption is beginning at Grímsvötn volcano in Vatnajökull glacier. Earthquake meters showed clear "volcanic unrest" around 6 PM on Saturday. "All indications are that an eruption will start in this area," according to Iceland met geologist Hjörleifur Sveinbjörnsson, according to mbl.is.'


The Grímsvötn eruption 2004. Photo: Páll Stefánsson

'Sveinbjörnsson said that the unrest was present in meters in many locations around the country and indications were that an eruption may already have started.'
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Iceland Volcano Erupts... No Air Retrictions yet. - Anung Mwka, 5/21/2011, 7:36 pm
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