The Eyjafjallajökull 2010 eruption
from the Eyjafjöll Volcanic System

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Eyjafjallajökull began erupting in March 2010. Fljótshlíd residents noticed an orange glow on the edge of the volcano at 23:52 GMT 20th March. This initial eruption was in the Fimmvörduhals area, the pass between Eyjafjallajökull and Mýrdalsjökull. This fissure eruption produced alkali-olivine basaltic lava with an SiO2 content of around 47%. The eruption produced lava flows (1.27 km2), as well as scoria cones. Activity decreased and stopped on the 12 April.

On the 14th April activity activity switched to Eyjafjallajökull's main crater just after midnight. Analyses of the tephra from the second phase of activity show a more evolved source, with an SiO2 content of around 58% with a high fluorine content. This subglacial eruption has resulted in jökulhlaups which has flowed north out of Gígjökull into the Markarfljót valley.

On the 23 May, the Institute of Earth Sciences/Nordic Volcanological Institute reported that the volcano was now dormant and just emitting steam. The final report on the 23rd June 2010, describes small scale ash clouds and that the ice is no longer in contact with molton material. Since June 2010, Eyjafjallajökull has been quiet. .


The data on this page is from the following source(s). If you use this data please acknowledge the source of the data.

Institute of Earth Sciences, University of Iceland. (2010)

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This Tephrabase search was made on 22/10/2020 at 10:06:05 local time, Edinburgh, Scotland, UK.