Earth science

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

magnitude

Earth science; Seismology

A general term for a measure of the strength or energy of an earthquake as determined from seismographic information.

lava

Earth science; Seismology

Magma or molten rock that has reached the surface.

damping

Earth science; Seismology

Loss of energy in wave motion due to transfer into heat by frictional forces.

alluvium

Earth science; Seismology

Loose material -- clay, silt, sand, gravel, and larger rocks -- washed down from hills and mountains and deposited in low areas.

unconsolidated

Earth science; Seismology

Loosely arranged, not cemented together, so particles separate easily.

trench

Earth science; Seismology

Long, narrow arcuate depression in the seabed which results from the bending of the lithospheric plate as it descends into the mantle at a subduction zone.