Essay: A comparison of Mount Etna and Chaitén Volcano

An essay that scored 35 when marked by school teacher on the differences/similarities between the two volcanoes.

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Helena Bonici Geography 10/10/2011
13EA2 Plate Tectonics
HOW DO THE ERUPTIONS OF CHAITÉN VOLCANO AND MOUNT ETNA
COMPARE?
Complete a report contrasting and comparing the Chaitén and Etna eruptions in full detail.
The report will include the work you completed on Chaitén, 2008. It is up to you how you present the
report however the minimum total word count is 1100 words.
A suggested layout for the report section of this would be to compare the two volcanic events under
the titles of:
·the nature of the volcanic hazard
·the impact of the event
·management of the hazard and responses to the event
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Helena Bonici Geography 10/10/2011
13EA2 Plate Tectonics
The Chaitén volcano is located in central, southern Chile, found on the west of South America and
it is the outcome of the Nazca plate subducting beneath the South American plate. Similarly, Mount
Etna is also the result of subduction, though it is situated in South-west of Europe, on the east coast
of Sicily, as the African plate is being subducted underneath the Eurasian plate.…read more

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Helena Bonici Geography 10/10/2011
13EA2 Plate Tectonics
the volcano and its vent. Also because of the lavas high acidity and silica content of 65-75%, it has a
very high viscosity so that over years it has created an obsidian lava dome.
Both hold caldera shapes in parts of their volcano shape but for very different reasons. Due to the
age of Mount Etna it has calderas present on its slopes.…read more

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Helena Bonici Geography 10/10/2011
13EA2 Plate Tectonics
the airport closure in Sicily and Italy was not as bad as in Chile because the ash travelled south and
barely lingered in the area, unlike with the Chaitén eruption.
A main difference is the age of the volcanoes so that Chaitén is much younger than Etna, which
implies the historic evidence may not be as reliable. This is especially so considering how often Etna
erupts in comparison to Chaitén.…read more

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