EESA06H3 Chapter : 6.doc
Document Summary
Indonesia sumatra earthquake and tsunami 2004 (page 69) Release of energy between the india plate and burma plate. Inundation the distance from the shoreline to the limit of tsunami penetration: magnitude 9. 3, run-up elevation the elevation above sea level of the water surface at the inland limit of inundation. 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. Determining the location of an earthquake (page 75) Time interval between the first arrivals of p and s waves increases with distance from the focus of an earthquake, this interval can be used to determine the distance from the seismograph station to a earthquake. Focus/epicentre/etc. (diagrams page 75: depth of focus distance between focus and epicentre, shallow focus o, deep focus. 1: magnitude richter scale (diagram pg. 78, moment magnitude (diagram pg. 79, quake of 5 releases 32 times more energy than one of magnitude 4.