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The sudden movement of the earth's crust is called and earthquake
earthquakes
earthquake/fissure
An Earthquake
earthquake/fissure
it may cause an earth quake
A sudden movement of the Earth's crust is called an earthquake.
True((;
An earthquake
An earthquake is a violent disturbance in the Earth's crust.
A shift in the earth's crust to relieve pressure, and therefore release energy, is an earthquake.
what are some examples of seismic disturbances