EESA06H3 : EESA06 READING #3.doc
24 Apr 2012
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Document Summary
Elastic rebound theory (diagram pg. 68: tectonic forces. Indonesia sumatra earthquake and tsunami 2004 (page 69: magnitude 9. 3, release of energy between the india plate and burma plate, thrust fault. Inundation the distance from the shoreline to the limit of tsunami penetration: run-up elevation the elevation above sea level of the water surface at the inland limit of inundation, tsunami lost energy as it moved inwards. Why do earthquakes cause so much damage? (page 72-73) How do we know where earthquakes occur? (page 73-79) Order during earthquake: p waves, s waves, surface waves. Measuring the size of an earthquake: intensity modified mercalli scale (diagram pg. 77, magnitude richter scale (diagram pg. 78, moment magnitude (diagram pg. 79, quake of 5 releases 32 times more energy than one of magnitude 4. Quake of 6 is (32 x 32) more powerful than a quake of 4. Location and size of earthquakes in north america (pg. 79: bc, california, quebec.
