Card Set Information
what is an earthquake?
sudden shaking of the crust
what are earthquakes associated with?
rupture of a fault
accumulated stree energy is released as _______
when seismic wves radiate through earths surface what does it cause?
how many major cities lie on or near unstable ragions of earths crust?
what does groundshaking produce?
explain elastic rabound theory:
crust at rest- no strain
crust deformed strain accumulates
ruptured crust causing earthquake w/ elastic rebound
fractured crust, fault zone- strain released
why do subduction zone have extreme earthquakes?
two plates touching build up stress