题目内容

The depth between focus and epicenter is called :

A. focal depth
B. epicenter depth
C. focus
D. epicenter

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The point at which the vibration initiates and thus the energy is released in the crust or mantle is called:

A. epicenter
B. epicenter distance
C. focal depth
D. focus

The elastic rebound theory was proposed to explain why earthquake occur based on the observation of the earthquake happened on the San Andreas Fault that devastated San Francisco in 1906.

The elastic rebound theory was proposed to explain why earthquakes occur based on the observations of the earthquake on the San Andreas Fault that devastated San Francisco in 1906.

An earthquake is a shaking or vibration of the ground, it usually occurs when rocks being defromed suddenly break along a fault.

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