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chapter 8-10 Matching
crust
thin, rocky outer layer of earths is divided into oceanic and continental
moho
is the boundary separating the crust from the mantle, discernible by an increase in the the velocity of seismic waves
epicenter
point on earth's surface directly above the focus
seismograph
all seismic waves are recorded on a
body waves
seismic waves that move through the inside (body) of earth
seismogram
pen traces vibrations onto a moving drum of a paper to create a
p waves
push-pull body waves
pyroclastic material
the volcanic rock ejected during an eruption including ash bombs and blocks
seismic waves
waves of energy released by an earth quake
hot spot
volcanic areas far from plate boundaries
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