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megathrust earthquake
1. interplate zone, one plate over another
2. r elease locked section
3. 7.0
cascadia plate tectonics
before: Kula plate and Farallon plate were big
after: kula move north and Farallon plate east
now: only farallen plate is left
farallon plate:
explorer
Juan De Fuca
Gorda
Cocos
North: queen charlotte fault
south: san andreas fault
speed is relative to
water dept, deep one can reach fast speed without lossing much energy
imamura Iida scale
function of max wave height in open ocean
approaching land
1. shallower and slows down
energy stays the same tho, speed reduce means height increase to maintain energy
Shoaling effect
height grow and tsunam=rapid rising/falliung tide
run-up height
highest vertical height onshore above sea level
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