Planet Earth Exam 3 study guide

Planet Earth Exam 3 study guide - Planet Earth Exam 3 study...

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Planet Earth Exam 3 study guide Hypocenter (focus) vs. epicenter Faults: normal, reverse, thrust, strike-slip (right-lateral and left-lateral); hanging wall and footwall. Seismic waves: Body waves: P (compressional, primary, first to arrive, fastest, travel through solid, liquid and gas); S ( shear, secondary, second to arrive, slower than P, only travel through solid) Surface waves: last to arrive, most destructive. L-waves (interaction of S waves and the ground surface); R-waves (interaction of P waves and the ground surface) What is a seismograph? What information can we get from seismographs? Basic process of determining an earthquake’s epicenter P and S wave, intersections of three stations, above where earthquake was Earthquake size: Mercalli scale: measures level of shaking damage (link to human occupancy/density of human structures) Richter scale: measures magnitude (amount of energy released) Earthquake occurrence Shallow earthquakes: divergent and transform boundaries
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