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Earth science

Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.

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Earth science > Seismology

elastic rebound theory

Earth science; Seismology

The theory of earthquake generation proposing that faults remain locked while strain energy slowly accumulates in the surrounding rock and then suddenly slip, releasing this ...

mean

Earth science; Seismology

The sum of the values divided by the number of values.

rossi-forel intensity scale

Earth science; Seismology

The Rossi-Forel scale is a measure of intensity of shaking from an earthquake. This scale was replaced by the Mercalli intensity scale.

reverse faulting

Earth science; Seismology

The rock above the fault plane (the "hanging" wall) moves up and over the rock below ("foot" wall).

slip

Earth science; Seismology

The relative motion of one face of a fault relative to the other.

seismic risk

Earth science; Seismology

The probability of social or economic consequences of an earthquake.

backarc

Earth science; Seismology

The region landward of the chain of volcanoes (volcanic arc) in a subduction system.