what is earthquake
what is focus
what is epicental?
what is rockcycle
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3
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Earthquake, any sudden shaking of the ground caused by the passage of seismic waves through Earth's rocks.
The hypocenter is the point within the earth where an earthquake rupture starts. The epicenter is the point directly above it at the surface of the Earth. Also commonly termed the focus.
The point on the earth's surface vertically above the focus of an earthquake.
The rock cycle is a basic concept in geology that describes transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. Each rock type is altered when it is forced out of its equilibrium conditions.
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Explanation:
Earthquake, any sudden shaking of the ground caused by the passage of seismic waves through Earth's rocks.
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