ARENAL  By: Corben Davis, and Sam Gomez  GE151j.

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Presentation transcript:

ARENAL  By: Corben Davis, and Sam Gomez  GE151j

Costa Rican Volcano  Alujela Provence, Costa Rica

Tectonic formation/location

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

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

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

Eruption Style  Pyroclastic flows  Lava flows  Volcanic mudflows (lahars)

Recent Activity  Eruption from  Recent activity of gas emissions  Eruption from  Recent activity of gas emissions

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

Rock Deposits, Lava Type Major:  Andesite/Basaltic Andesite  Basalt/Picro-Basalt

Local Tourism  Geothermal hot springs  Hiking, climbing, mountain biking  Volcanic activity observation  Geothermal hot springs  Hiking, climbing, mountain biking  Volcanic activity observation

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

Bibliography  overview.htm overview.htm  vn= vn=   noes_work/stratovolc_page.html noes_work/stratovolc_page.html  valley/arenal-volcano/ valley/arenal-volcano/  overview.htm overview.htm  vn= vn=   noes_work/stratovolc_page.html noes_work/stratovolc_page.html  valley/arenal-volcano/ valley/arenal-volcano/