Volcano Case Study: Montserrat (low income country)

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  • Created by: Ellen
  • Created on: 19-08-14 14:47

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  • British colony of Montserrat.
  • Northern part of the Lesser Antilles.
  • Island arc formed where Atlantic tectonic plate subducts beneath the Caribbean tectonic plate.
  • Montserrat is only 16km long and 10km wide - built almost entirely of volcanic rock.
  • Lava domes have been created as a result of thick sticky (andesitic) lava building up at the top of the volcano.
  • When the lava becomes too heavy, the domes collapse, resulting in andesitic lava flows and pyroclastic flows.
  • The volcanic flows have left rich volcanic soil which supports an abundance of tropical vegetation and cashcrops including the soft, locally woven Sea Island cotton.

Eruption:

  • On 18th July 1995, the Chances Peak volcano in the south of the island began erupting ash and dust.
  • One month later evacuation of the south of the island began, residents moved to churches and halls in the north.
  • In April 1996, the entire population of Plymouth (the capital) was forced to leave.
  • On 25 June 1997 Chances Peak erupted. The…

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