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Unformatted text preview: ~3 days of total darkness within 200 miles of the eruption 1-2.5 degree C drop in New England and western Europe Snows and frost in New England in every month of the summer Widespread crop failure and famine o Krakatau, Indonesia (1883) 0.4*C global temperature decrease 2 nd largest historical eruption • Noise of eruption hear 3000 miles away • VEI 6 Period known for brilliant sunsets SO 2 and ash injected into stratosphere Atmospheric effects visible over 70% of globe o Pinatubo, Philippines (1991) 0.1*C global temperature decrease 0.6*C in N hemisphere Injected 15 million tons of SO 2 into the atmosphere Eruption column over 35km high o Toba (74,000 years ago) A megaeruption • VEI 8 Caused a global volcanic winter Near extinction of Homo Sapien lineage Eruption volume 2,000km 3 1% of globe covered to >10cm of ash...
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This note was uploaded on 07/02/2009 for the course ESS 106 taught by Professor Bergantz during the Spring '09 term at University of Washington.
- Spring '09