Eyjafjallajökull is a volcano in Reykjavik, Iceland. It sits in the mid Atlantic ridge. It is where the Eurasian and north American tectonic plates meet, both move away from each other and split the island in two causing volcanic activity. The mountain is a stratovolcano, it is 1,651 meters at it highest point and has a crater 3 kilometers in diameter. The city of Reykjavik has a population of around 120,000 people.
Causes:
The eruption of Eyjafjallajökull was caused because the north american plate and the eurasian plate are shifting away from each other. As they grow apart, magma seeps up from bellow ground and plugs the gap.
Relationships:
Seismic activity started occuring at the end of 2009. It gradually increased in
intensity, until a small eruption happened on March 20, 2010. Later on april 14 the eruption entered a second phase and it created an ash cloud which made it dangerous for airplanes. The ash cloud was carried west by the wind. For an inicial period of six days, flight were cancelled and were unable to travel by air in most of Europe because the ash cloud had traveled to a great part of Europe. This left millions of travelers stranded across Europe and it hurt the economy
Evolution:
By 21st of may lava and ash had stopped coming out of the volcano. But there was large quantities of ash on the ground still, these got picked up by the wind so there was still ash in the air and this reduced visibility significantly. June 6th, a small, new crater had opened up. Until seismic activity is ceased for three months it will then be regarded as dormant.
Generalizations:
The eruption of Eyjafjallajökull was not very big, but the location made it affect a big part of Europe. Mount Pinatubo, of 1991 lasted for 8 days. It made an ash cloud harder to disperce, it altered weather worldwide and decreased global temperature for a few years. The second phase of the eruption of Eyjafjallajökull lasted longer than the eruption of Mount Pinatubo.