Eyjafjallajkull - the Icelandic volcano eruption

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Eyjafjallajökull

Evacuations

About 500 farmers and their families from the areas of , Eyjafjöll, and Landeyjar were evacuated overnight (including a group of 30 schoolchildren and their 3 teachers  from  in England), and flights to and from  and  were postponed, but on the evening of 21 March, domestic and international air traffic was allowed again Inhabitants of the risk zone of Fljótshlíð, Eyjafjöll, and Landeyjar area were allowed to return to their farms and homes after an evening meeting with the  on 22 March and the  plan was temporarily dismissed. Instead, the police closed the road to , and the four-wheel-drive trail from  village to the Fimmvörðuháls mountain pass, but these roads and trails were reopened on 29 March, though only for suitable four-wheel drives. When the second fissure appeared, the road was closed again because of the danger of , which could have developed if the fissure had opened near big ice caps or other snow reservoirs, but the road was again opened at around noon on 1 April. (1,800 °F) up to 150 metres (490 ft) into the air. The lava is alkali olivine  and is relatively  causing the motion of the lava stream to the west and east of the fissure to be slow. The molten lava has flowed more than 4,000 metres (2.5 mi) to the north-east of the fissure and into Hrunagil , forming a lava fall more than 200 metres (660 ft) long and is slowly approaching , but has not yet reached the  of .

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On 25 March 2010, while studying the eruption,  witnessed, for the first time in history, the formation of a  during a . Crustal expansion continued at Þorvaldseyri for two days after the eruption began, but has been slowly decreasing whilst the volcanic activity increased. This indicates that the rate at which magma is flowing into the magma chamber roughly equals the rate at which it is being lost due to the eruption, giving evidence that this phase of volcanic activity has reached equilibrium.

A new fissure opened on 31 March, around 200 metres (660 ft) north-west of the original fissure. Many witnesses were ...

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