The Puyehue Volcanic Eruption detailed case study

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Kieran Podbury
CASE STUDY SUMMARY
Case Study: The Puyehue Volcanic Eruption Year 2011
:
Event Profile
Magnitude Enormous Small
Speed of onset Rapid Slow
Duration Long Short
Areal extent Widespread Limited
Spatial predictability Random Predictable
Frequency Frequent Rare
Facts
Country Profile
Location (1) Map
Population HDI:
17.46 million (2012) (2) 0.822 (2013) (4)
GDP (US $) GDP per capita (USD )
268.3 billion USD (2012) 15,452.17 (2012) (3)
Government Political Stability ­
Chile is governed under the constitution of 1981 as amended. It is a Chile is a stable country with a solid economy, a clear institutional
multiparty democracy with a directly elected president who serves a framework and well-respected democratic institutions. The
four-year term. The president may not be elected to consecutive country's economic model is one of the most open in the world,
terms. Administratively, Chile is divided into 13 regions. (5) The evidenced by the internationally-renowned number of free trade
current president of Chile is Michelle Bachelet who as been in power agreements signed with other countries. (7)
since 2014 is a member of the socialist party of Chile. She is currently
pursuing her agenda of spreading the benefits of an economic boom
more broadly. In the most recent election in 2014 she captured 62%
of the vote in the runoff election against center-right candidate
Evelyn Matthei. (6)

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Kieran Podbury
What happened?
Magnitude/VEI T
Volcanic explosively index: 5
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Kieran Podbury
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Kieran Podbury
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Kieran Podbury
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Tectonic situation (words) T
The Nazca Plate, borders the South American Plate for most part of
the continent. But towards the tip of the continent and bordering
Chile is the Antarctic Plate.…read more

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Kieran Podbury
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Preparation / Warning?
A column of gases was observed rising from Puyehue on 26 April and
the alert level was raised to 3 (yellow). On 5 May, SERNAGEOMIN
first detected earthquakes typical for magma moving at depth. The
earthquakes were located 2-5 km beneath the southeast flank of the
volcano. Seismic activity continued to rise during May.…read more

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Kieran Podbury
Long term The Argentine Argentina's Agriculture Emergency and Disaster office head Haroldo
government Lebed said the emergency will be declared to the northeast of the
announced an province of Chubut where an estimated 750,000 sheep are suffering
agriculture the consequences of the volcanic ash.…read more

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Kieran Podbury
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Kieran Podbury
H Details
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P The president Cristina Fernández announced on national television plans to supply $2.41
e billion to 1,400 farmers and businesses in the area affected by the ash cloud. They also plan
o to spend $7 million on the cleanup operation, and double social benefits, and defer tax
p payments for the hardest hit regions.…read more

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Kieran Podbury
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