earthquakes earthquake types lessons faults displacement horizontal vertical
earthquakes ripples behaves pond waves damage extensive causes longer surface others land than last these may like
earthquake map usgs hazards earthquakes state washington hazard seismic states united alaska future program fault maps models correlation springs hot
slip dip normal faults reverse strike lateral thrust transform left right lessons natural
lessons killed damaged numerous destroyed estimated damage million buildings property people
lessons waves motion damage pronounced usually extensive forth cause stronger much than back
earthquakes lessons cascadia subduction zone region years
earthquakes lessons boils landslides spreading liquefaction lateral sand
natural lessons soft 1906 sediment partly sandy fills earthquake rivers deposited saturated water man made
earthquakes lessons buildings hundreds serious codes preliminary sustained damage billion estimates 1970 tagged built did well modern red
convergent oceanic convergence continental boundaries lessons plate
san andreas fault california zone formation lessons francisco segments three there bay