10 Terms
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Seismology
The study of earthquake, seismic sources, and wave propagation through the Earth.
Industry: Earth science
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Seismology
Meizoseismal region
Earth science; Seismology
The area of strong shaking and significant damage in an earthquake.
Takeoff angle
Earth science; Seismology
The angle that a ray makes with a downward vertical. Used in determining depth phases.
Azimuth
Earth science; Seismology
The angle measured clockwise from north a ray must travel to arrive at a given station.
Dip
Earth science; Seismology
The angle between a geologic surface -- for example, a fault plane -- and the horizontal. The direction of dip can be thought of as the direction a ball, if placed upon the tilted surface, would ...
Yield
Earth science; Seismology
The amount of energy released (in kilotons of TNT) from an explosion.
Earthquake segment
Earth science; Seismology
That part of a fault zone or fault zones that has ruptured during individual earthquakes.
