Answer:
a.)fault:A fault is a planar crack or discontinuity in a volume of rock over which rock-mass motions have caused considerable displacement.
b.)focus:The focus is on the location where an earthquake begins deep under the Earth's crust.
c.)epicenter:The epicenter of an earthquake is the point on the earth's surface that is vertically above the epicenter.
d.)seismic waves:Seismic waves are elastic waves that occur in the ground as a result of an earthquake or other natural occurrence.
Step-by-step explanation:
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