Distal deposition of tephra from the Eyjafjallajökull 2010 summit eruption

John Stevenson, Susan Loughlin, C. Rae, Thorvaldur Thordarson, Antoni Milodowski, Jennie Gilbert, Szabolcs Harangi, Reka Lukács, Bartal Højgaard, Uni Árting, Sean Pyne-O'Donnell, Alison MacLeod, Bronwen Whitney, Mike Cassidy

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54 Citations (Scopus)

Abstract

The 2010 Eyjafjallajökull lasted 39 days and had 4 different phases, of which the first and third (14–18 April and 5–6 May) were most intense. Most of this period was dominated by winds with a northerly component that carried tephra toward Europe, where it was deposited in a number of locations and was sampled by rain gauges or buckets, surface swabs, sticky-tape samples and air filtering. In the UK, tephra was collected from each of the Phases 1–3 with a combined range of latitudes spanning the length of the country. The modal grain size of tephra in the rain gauge samples was 25 μm, but the largest grains were 100 μm in diameter and highly vesicular. The mass loading was equivalent to 8–218 shards cm−2, which is comparable to tephra layers from much larger past eruptions. Falling tephra was collected on sticky tape in the English Midlands on 19, 20 and 21st April (Phase 2), and was dominated by aggregate clasts (mean diameter 85 μm, component grains
Original languageEnglish
JournalJournal of Geophysical Research: Solid Earth
Volume117
Issue numberB9
DOIs
Publication statusPublished - Sep 2012

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