Eyjafjallajökull Iceland 2010

Katie and Lisa 🙂

The 2010 eruptions of Eyjafjallajökull were volcanic events at Eyjafjöll in Iceland that affected the residents and air flights across western and northern Europe for six days.  This volcano was dormant for two centuries before this eruption. It was a small eruption rated as 1 on the Volanic Explosivity Index but when the eruption entered second phrase on 14th April it created ash cloud that blocked mist of airways to and Europe, and created the most air travel disruption since World War 2. By 14–20 April, the ash covered large areas of northern Europe when the volcano erupted.

The second phrase rated  as 4 on the Volcanic Explosivity Index but reduced to a point where no lava was produced on 21st May and by the morning of 24th there was very little activity. The eruption was declared officially over in October 2010, when snow on the glacier did not melt but  Ármann Höskuldsson, a scientist at the University of Iceland Institute of Earth Sciences stated that it might erupt again because it is active.

http://topics.nytimes.com/top/news/international/countriesandterritories/iceland/eyjafjallajokull/index.html

Katie and Lisa 🙂

Mount Eyjafjallajökull is between the North-Atlantic and Eurasian plate; on the Mid-Atlantic ridge. It is a constructive plate boundary,on the ridge also called divergent or spreading. The North American plate is going slowly towards the west and the Eurasian plate is heading east.

A divergent boundary move apart and as they do, the mid-ocean ridges are created as magma from the mantle upwells, becasue of this it causes growing oceanic crust on both sides of the vent. As the plates continue to move, and more crust is formed, the ocean basin expands and a ridge system is created.

The formation of the new crust on either side of the vents would push plates apart, mid-ocean ridges are mountain chains in the ocean. Magma is pushed upwards through the ridge cracks by convection currents. As some magma erupts out through the crust, the magma which does not erupt continues to move under the crust with the current away from the ridge crest. These continual convection currents, help to move the plates away from each other to allow more crust to be created and the sea floor to grow, this is known as sea-floor spreading.

3 responses to this post.

  1. Map
    Comment: The map was great and it accurately showed the plates and the location of the disaster
    Suggestions for improvement: I think you could have done all the things such a the plates names and the location on one map

    Description of Disaster
    Comment: I think you guys have explained the disaster very descriptively and even included a video showing the horrible mess mount ummmm Eyjafjallajökull had made in Iceland
    Suggestions for improvement: I think you guys could of shorten the information and make it equally descriptive because long, long essays can be very tiring.

    Explanation of plate boundary near disaster
    Comment: The explanation of the plate boundary near the disaster was very good and very interesting.
    Suggestions for improvement: I think you could of explained what convection currents were more in detail because other people who might see this blog may not know what convection currents are

    Overall impression
    Comment: I think this is a great blog and is very reliable
    Suggestions for improvement: The definition of certain words needs improvement

    MARK 8/10

    Is there another name for mt Eyjafjallajökull?

    How many countries were affected by this volcano?

    By Mark, Mary and Anita

    Reply

  2. Thankyou for the comments.
    No there is no other name for mt Eyjafjallajökull.
    Airlines were affected in Europe and ash clouds spread.

    Lisa and Katie 🙂

    Reply

  3. Map:
    Comment: The map is very accurate a great choice it shows all the information that was asked of you.
    Suggestions for Improvement: If you could have found a less blury picture it could have been a little better.

    Description of disaster:
    Comment: Your information is great and very descriptive i think there is no need for improvement there.

    Explanation:
    Comment: it catches attention its good.
    Improvement: could have been more descriptive.

    Overall:
    great and descriptive

    8 out of 10

    by marae, samuel, isabel and jrodie

    Reply

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