Eyjafjallajökull update, 22 March 2010 22 March 2010Posted by admin in activity reports, eruptions, Eyjafjöll, Iceland.
Tags: Eyjafjallajökull, Eyjafjöll, Iceland, volcanic activity reports, volcanic eruptions
The Eyjafjallajökull (or Eyjafjöll) eruption in south Iceland is ongoing with lava erupting from a fissure about 2 km in length located between Eyjafjallajökull and Myrdalsjökull. A big bang of some kind at around 07:15 local time this morning sent an ash plume to around 4 km altitude, according to press reports; London VAAC issued an ash advisory reporting ash at FL164 (16,400 feet / 5000 metres altitude), but also stated that this was ‘for a limited duration only’. Activity returned to a low level shortly afterwards, suggesting that this was (to quote Boris Behncke) ‘a short-lived phreatic or phreatomagmatic event’ and not a sign of some major upswing in the eruption.
Apart from that brief explosive episode this eruption has been of a Hawaiian-type, low-intensity, effusive character. Civil protection authorities and volcanologists in Iceland are watching carefully, however, for any signs (1) that the activity is moving beneath the Eyjafjallajökull ice cap and threatening meltwater flooding, and (2) that neighbouring volcano Katla is showing any signs of restlessness. So far all seems quiet on both fronts.
According to Icelandic journalist Ómar Ragnarsson, veteran of 21 volcanic eruptions, what we are seeing from Eyjafjallajökull at the moment is a ‘small and shy fire column dance’. Iceland remains a land of poetry.
Iceland prepares for second, more devastating volcanic eruption – The Times, 21 March 2010
Uncertainty surrounds volcanic eruption in Iceland – Iceland Review Online, 22 March 2010
Changed activity in South Iceland volcano – Iceland Review Online, 22 March 2010
Global Volcanism Program: Eyjafjöll – summary information for Eyjafjallajökull, which the GVP calls Eyjafjöll (1702-02=)
Eyjafjallajökull eruption March 2010 – summary of events from the University of Iceland’s Nordic Volcanological Center