ESCI 1001 Lecture Notes - Lecture 8: Outer Core, Richard Dixon Oldham, Inge Lehmann
Document Summary
Richter scale (cid:523)see last week"s notes(cid:524) crust. Upper limit of earthquake is limited by the strength of the rocks within the: standing on sand is very dangerous (see liquefaction) Energy is released in earthquakes (much different between each number because it is exponential) Shaking intensity: intensity of earthquake, modified mercalli scale (1-12, important for mapping seismic hazards, depends on; distance to the earthquake, local geology and building type, varies from place to place, ex. Ground displacements: very strong at the surface of the earth: the ground is actually moving. Landslides: might delay for a couple of days. Even though the structure is strong, since the ground moves, the structure falls down: this is why you need to know what the bed rock under the towns are. Seiches: anomalous waves created by ground movement. Tsunami amplitude, doesn"t affect ships builds up very damaging: wall of water.
