[Solved] Why are deep-focus earthquakes rarely destructive?

Q.	Why are deep-focus earthquakes rarely destructive?
A.	They release less energy than shallow earthquakes.
B.	They occur less frequently than shallow earthquakes.
C.	The seismic waves lose much of their energy before reaching the surface.
D.	They are always smaller in magnitude than shallow earthquakes.
Answer» C. The seismic waves lose much of their energy before reaching the surface.

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