Seismology

Seismology

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

Industry: Earth science

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Seismology

head waves

Earth science; Seismology

Head waves are observed in a half-space that is in welded contact with another half-space with higher velocity when the seismic source is located in the lower velocity medium. The ray path of the ...

Poisson's ratio

Earth science; Seismology

Gives the absolute value of ratio given by the extension normal to applied compressive stress, divided by the extension parallel to the applied compression.

volcanism

Earth science; Seismology

Geological process which involved the eruption of molten rock.

caustic

Earth science; Seismology

Focusing of a wave where the energy is turning above and reflecting off a discontinuity, respectively - constructively interfering. The amplitude may be large, but not infinite. There are two ...

seismic zonation

Earth science; Seismology

Geographic delineation of areas having different potentials for hazardous effects from future earthquakes. Seismic zonation can be done at any scale - national, regional, local, or site.

General term referring to the qualitative or quantitative aspects of movement of the Earth's surface from earthquakes or explosions. Ground motion is produced by waves that are generated by sudden ...