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ARENAL

ARENAL. By: Corben Davis, and Sam Gomez GE151j. Costa Rican Volcano. Alujela Provence, Costa Rica. Tectonic formation/location. Formation History. Formed 7000 Y ears Ago Erupted along with Chato Volcano until about 3500 years ago. Class: Stratovolcano. Characteristics. Steep Slope

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ARENAL

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  1. ARENAL • By: Corben Davis, and Sam Gomez • GE151j

  2. Costa Rican Volcano • Alujela Provence, Costa Rica

  3. Tectonic formation/location

  4. Formation History • Formed 7000 Years Ago • Erupted along with Chato Volcano until about 3500 years ago

  5. Class: Stratovolcano Characteristics • Steep Slope • Conical • Layered ‘Stratified’ appearance Dimensions Summit: 1670m (5480ft) Consists of 3 craters

  6. Eruption History 7:30 AM July 29, 1968 VEI: 3 • Killed: 87 • Buried 3 villages

  7. Eruption Style • Pyroclastic flows • Lava flows • Volcanic mudflows (lahars)

  8. Recent Activity • Eruption from 1968-2010 • Recent activity of gas emissions

  9. The Eruption Hazards • Explosive Hazards: • Potential flows diverted away from locals Local Population: 5KM: 3,429 30KM: 96,512 100KM: 3,027,485

  10. Rock Deposits, Lava Type Major: • Andesite/Basaltic Andesite • Basalt/Picro-Basalt

  11. Local Tourism • Geothermal hot springs • Hiking, climbing, mountain biking • Volcanic activity observation

  12. PREDICTING ERUPTIONS: VOLCANO MONITORING • Four seismic stations located around Volcano • 2 more • located • within 8km • of volcano

  13. Bibliography • http://www.arenal.net/arenal-volcano-overview.htm • http://www.volcano.si.edu/volcano.cfm?vn=345033 • http://geology.com/volcanoes/arenal/ • http://www.geology.sdsu.edu/how_volcanoes_work/stratovolc_page.html • http://puravida.com/costa-rica-central-valley/arenal-volcano/

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