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Earthquake

Of or pertaining to the natural phenomenon when tectonic plates slide or move causing the Earth's surface also move which causes devastating damage to cities and towns.

Contributors in Earthquake

Earthquake

Dip-slip fault

Natural environment; Earthquake

A fault with the major component of relative displacement along the direction of dip of the fault.

Horst

Natural environment; Earthquake

An elongated block of the earth's crust uplifted relative to surrounding rocks along bounding faults.

Displacement

Natural environment; Earthquake

The difference between the initial position of a reference point and a later position. In geology it is the permanent offset of a reference point across a fault.

Hot spot

Natural environment; Earthquake

A volcanic center, 100 to 200 km across and persistent for at least a few tens of millions of years, that is thought to be the surface expression of a rising plume of hot mantle material.

Ductile deformation

Natural environment; Earthquake

Behaviour in which rocks, at a critical stress, do not rupture but instead become permanently deformed by flowing.

Hypocenter

Natural environment; Earthquake

The point within the earth where earthquake rupture begins; the focus of an earthquake.

Duration (earthquake)

Natural environment; Earthquake

The length of time the ground motion at a site shows certain characteristics in an earthquake.

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