# 27 - October7,2010 01:05 Normalfault,...

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October 7, 2010 01:05 If Sea Floor drops in a tsunami: Normal fault, which down drops the sea floor Sea level also drops, same thing in reverse Entire column of water moves in a negative fashion See 2 km of Mudflat going way out, and fish are flopping out because sea level is  receded  Don’t go towards the hole, go toward high ground  * Wavelength of a Tsunami = typically couple of 100km, about 200 km Frequency of a Tsunami Wave = about 15 min or 4 cycles/hour Velocity of a Tsunami = (4 cycles/hour) x 200 km = 800 km/hour Upwards of about 10 min, sea level is way out there What happens after the trough passes, and the crust comes,  Tsunami waves are no individual events, they are many, different waves The first wave isn’t always the largest  Shocking number of people are killed by a later wave in the tsunami wave train. Thousands of people were killed in India and Sri Lanka, but the Tsunami was

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27 - October7,2010 01:05 Normalfault,...

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