ARENAL

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ARENAL

• By Corben Davis, and Sam Gomez
• GE151j

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Costa Rican Volcano

• Alujela Provence, Costa Rica

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Tectonic formation/location

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Formation History

• Formed 7000 Years Ago
• Erupted along with Chato Volcano until about 3500
  years ago

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Class Stratovolcano
Characteristics

• Steep Slope
• Conical
• Layered Stratified appearance

Dimensions Summit 1670m (5480ft) Consists of 3
craters
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Eruption History

• 730 AM
• July 29, 1968
• VEI 3

• Killed 87
• Buried 3 villages

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Eruption Style

• Pyroclastic flows
• Lava flows
• Volcanic mudflows (lahars)

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Recent Activity

• Eruption from 1968-2010
• Recent activity of gas emissions

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The Eruption Hazards

• Local Population
• 5KM 3,429
• 30KM 96,512
• 100KM 3,027,485

• Explosive Hazards
• Potential flows diverted away from locals

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Rock Deposits, Lava Type

• Major
• Andesite/Basaltic Andesite
• Basalt/Picro-Basalt

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Local Tourism

• Geothermal hot springs
• Hiking, climbing, mountain biking
• Volcanic activity observation

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PREDICTING ERUPTIONS VOLCANO MONITORING

• Four seismic stations located around Volcano
• 2 more
• located
• within 8km
• of volcano

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Bibliography

• http//www.arenal.net/arenal-volcano-overview.htm
• http//www.volcano.si.edu/volcano.cfm?vn345033
• http//geology.com/volcanoes/arenal/
• http//www.geology.sdsu.edu/how_volcanoes_work/str
  atovolc_page.html
• http//puravida.com/costa-rica-central-valley/aren
  al-volcano/