Montserrat Volcanic Eruption-Case Study

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What is the name of the volcano that erupted in Montserrat in 1997?
The Soufriére Hills
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What was the date of the eruption? When had small eruptions started?
The date of the eruption was June 25th 1997 and the small eruptions started in July 1995
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What was the size of the eruption?
Large- 4-5 million metres cubed of rocks and gas where released
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What was the death toll?
19 killed
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Cause-What type of plate margin is Montserrat above? What happens at this plate margin?
Destructive plate margin where the Atlantic plate is being forced under the Caribbean plate
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Cause-Where did magma rise up through and what did it form?
Through weak points under the Soufriére Hills forming an underground pool of magma
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When the rock above the pool collapsed, what happened?
It opened a vent causing the eruption
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Primary-How much mud and ash was the capital city of Plymouth covered in?
12m
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Primary-What happened to over 20 villages and two thirds of homes on the island?
Were destroyed by pyroclastic flows (fast-moving clouds of super-heated gas and ash)
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Primary-What other six things where destroyed?
Schools, hospitals, the airport, the port, vegetation and farmland
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Primary-How many people got injured?
7
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Secondary-What did the fires destroy?
Many buildings including local government offices, the police headquarters and the town's central petrol station
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Secondary-What two major things disrupted the economy?
Tourists stayed away and businesses where destroyed
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Secondary-How many people have left the island from its previous 12000 inhabitants? What is this called?
8000 of the inhabitants have left and this is called population decline
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Secondary-What has improved the soil fertility?
Volcanic ash
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Secondary-How is tourism now increasing?
People come to see the volcano
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Immediate-Where were people from the south evacuated too?
Safe areas in the North
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Immediate-What were built to house the evacuees?
Shelters
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Immediate-What was also built?
Temporary infrastructure, eg: roads and electricity supplies
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Immediate-How much money did the UK provide of emergency aid? Why?
£17million because Montserrat is an overseas territory of the UK
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Longterm-What has been set up to predict future eruptions?
The Montserrat Volcano Observatory
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Longterm-How much money has the UK provided to develop the north of the island? What are have they built?
£41 million and new docks, an airport and houses
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Longterm-Why is the south of the island off-limits?
Because the volcano is still active
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Longterm-What has been created? What has been put in place?
A risk map has been created and an exclusion zone has been put in place
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Other cards in this set

Card 2

Front

What was the date of the eruption? When had small eruptions started?

Back

The date of the eruption was June 25th 1997 and the small eruptions started in July 1995

Card 3

Front

What was the size of the eruption?

Back

Preview of the front of card 3

Card 4

Front

What was the death toll?

Back

Preview of the front of card 4

Card 5

Front

Cause-What type of plate margin is Montserrat above? What happens at this plate margin?

Back

Preview of the front of card 5
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