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Seismology

The study of earthquake, seismic sources, and wave propagation through the Earth.

Contributors in Seismology

Seismology

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.

Tectonics

Earth science; Seismology

Large-scale deformation of the outer part of the Earth resulting from forces in the Earth.

Bedrock

Earth science; Seismology

Relatively hard, solid rock that commonly underlies softer rock, sediment, or soil.

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