Mt Etna

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Location?
near Catania, Sicily
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Dates of eruptions?
1991-1993
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plate margin?
destructive
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Type of volcano?
stratovolcano
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Most prominent feature?
Valle del Bove, horseshoe-shaped caldera
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What happened at the end 1991?
lava began to advance of the settlement of Zafferana
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First protective measure?
large earth barrier across the end of the Val Calanna
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what did this do?
slowed lava advance temporarily
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How did they attempt to cut off flow?
by dropping concrete blocks from helicopters to block the primary feeder channel
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what happened in May 1992?
encouraged a new direction of flow by blasting openings in the lava tube - the lava stopped advancing on Zafferana
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Deaths?
None
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Two reasons for success?
low effusion rates during the eruption, possibility of diverting lava flow, lava flow was slow so easier to manage
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Why were the slopes an attractive place to live?
fertile soils
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Other cards in this set

Card 2

Front

Dates of eruptions?

Back

1991-1993

Card 3

Front

plate margin?

Back

Preview of the front of card 3

Card 4

Front

Type of volcano?

Back

Preview of the front of card 4

Card 5

Front

Most prominent feature?

Back

Preview of the front of card 5
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