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Ch17 Earth and Space

Definitions from Earth and Space Science BJU Press Ch 17

TermDefinition
earthquake a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
elastic rebound is an explanation for how energy is released during an earthquake. As adjoining plates on the Earth's surface move in opposite directions, the rocks which span the opposing sides of the incipient fault are subjected to extreme shear stress.
seismograph detects earthquakes
richter scale raitings of earthquakes
magnitude energy released
intensity how damaging
focus center of earthquakes activity
epicenter place of earths surface directly above the focus
tsusinami a long high sea wave caused by an earthquake, submarine landslide, or other disturbance.
p wave a longitudinal earthquake wave that travels through the interior of the earth and is usually the first conspicuous wave to be recorded by a seismograph. Expand. Also called primary wave
s wave
L wave
volcano
vent
lava
volcanic cone
crater
caldera
glowing avalanche
lahar
fumarole
pyroclastic materials
ash
tephra
cinder
bomb
shield volcano
cinder cone
composite cone
stratovolcano
active volcano
dormant volcano
extinct volcano
circum pacific belt
a-h belt
geothermal gradient
hot spring
mud spot
geyser
geothermal energy
Created by: kjkhp
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