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luneau.chapter6vocab

QuestionAnswer
plate a large section of earths crust and rigid upper mantle that moves around on the asthenosphere
fault surface which rocks move along when they pass their elastic limit and break
earthquake the vibrations produced by the breaking of rock
normal fault rock above the fault surface moves downward
reverse fault break in rock caused by compressive forces, where rock above the fault surfacemoves upward relative to the rock below the fault surface
strike-slip fault rocks on either side of the fault are moving past each other without much upward or downward movement.
wave rythmic movement that carries energy through matter and space
seismic wave wave generated by an earthquake
focus place during an eathquake where pressure is released
primary waves causes particles in rocks to move back and forth
secondary wave move through earth by causing particles in rocks to move at right angles.
surface waves moves rock particles in a backwards rolling motion and a side-to-side swaying motion.
epicenter the point on earths surface directly above the earthquakes focus
siesmograph instument used to measure seismic waves
crest the highest point in a wave
magnitude energy is released from an earthquake
liquefaction when wet soil acts like a liquid
tsunami huge waves caused by earthquakes
Created by: annmarie.l.
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