1989 63 killed Magnitude 7.1 Water mains broke during shaking and couldn't fight fire
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San Francisco Earthquake
1906 Magnitude 7.9 Water mains broke and couldn't fight fire Most damage to structures was from fires not actual earthquake
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Mt. Unzen
Japan Pyroclastic flow as a result of lava dome collapse
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Mt St Helens
1980 Washington Composite volcano Both andesitic and rhyolitic Lateral Blast Earthquake --> landslide --> uncapped pressurized magma = eruption 57 killed 150 sq m of timber flattened Cost > $1 billion
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Lake Nyos
Cameroon, W Africa Volcanic Lake 1986 Emitted large cloud of CO2 that suffocated 2k people and 1k cattle
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Nevada Del Ruiz
1985 Colombia Lahars killed 22k of the 27k residents of Armero
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Mt Vesuvius
500 years of quiet, then erupted in 1631 18 cycles of activity between 1631 and 1944. nothing since 3 million people live within danger of Vesuvius 1 million people on slopes of volcano
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Mt Tungurahua
1999 Ecuador Tourist town of Banos at base of volcano Snow and ice at volcano summit --> would cause lahar
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Mt Pinatubo
1991 2nd largest eruption of 20th century Prediction saved 5-10k lives 847 deaths due to roof collapse