Plate tectonics ALL case studies.

A document containing all plate tectonics case studies I learnt including:

  • Pinatubo, Philippines 1991
  • Ejafjallajökull, Iceland 2010

  • Port-au-Prince, haiti 2010

  • L'Aquila, Italy 2009

  • Japan 2011 tsunami

  • Boxing day Indian ocean tsunami 2004

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Plate tectonics:
Pinatubo, Philippines 1991:
Nature of the volcanic hazard:
· Destructive margin (Eurasian ­ continental, Philippine ­ oceanic)
· The volcano had been dormant since the 14th century
· Lots of sediment on top of the volcano which made it very explosive as the
magma had to blast…

Page 2

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Nature of the volcanic hazard:
· Constructive margin
· Also a hot spot
· 1st eruption basaltic lava 2nd a little more andesitic
· 2nd eruption released large amounts of ash because as the magma rose it was
blocked and so built up a lot of pressure when this was…

Page 3

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Port-au-Prince, Haiti 2010
Nature of the seismic hazard:
· Haiti lies on the boundary of the Caribbean and North American plates.
· Conservative/ transform plate boundary.
· 7.0 magnitude.
· Very shallow earthquake 13km deep.
· Port-au-Prince (2 million population) was vulnerable because the geology of the
area is prone…

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· Due to the issues at the airport aid was backing up and not being distributed, this
led to small incidences of violence and looting.
Secondary responses:
· Money was pledged by organisations and governments to assist in rebuilding, but
only slow progress had been made after one year.

Page 5

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Short Term:
· Money was provided by the government to pay rent, gas and electricity bills were
· Cranes and diggers were used to remove rubble.
· Ambulances, fire engines, the army were sent in to rescue survivors.
· International teams with rescue dogs were sent to look…

Page 6

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Japan 2011:
Nature of the hazard:
· Japan is located at the meeting point of 3 tectonic plates, The Eurasian, Pacific
and Philippines.
· Destructive margin.
· Japan gets 30% of the world's earthquakes every year.
· There was a magnitude 7.2 earthquake on the 9th of March, 2 days…

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· The island of Honshu was moved 2.4 m east and shifted the Earth on its axis by
estimates of between 10 cm and 25 cm.
· 3 nuclear meltdowns at the Fukushima power plant.
· This cause contamination of the sea and land, and force the evacuation of…

Page 8

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· People were swept away in the waters, which arrived rapidly and with little
· Thirteen countries were affected, the worst being Indonesia.
· Diseases in refugee camps killed 150,000.
· Up to 5 million people lost homes, or access to food and water.
Impacts on tourism and…


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