5 Terms
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Earthquake
Of or pertaining to the natural phenomenon when tectonic plates slide or move causing the Earth's surface also move which causes devastating damage to cities and towns.
Industry: Natural environment
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Earthquake
Design acceleration
Natural environment; Earthquake
The anticipated ground acceleration at a site used for earthquake-resistance design of a structure.
Ground motion and ground response
Natural environment; Earthquake
General terms referring to the quantitative or qualitative motion of the earth's surface produced by earthquakes or explosions.
Design earthquake
Natural environment; Earthquake
The largest earthquake that has a high enough probability of occurring at a site that it is appropriate to design a structure to withstand it.
Group velocity
Natural environment; Earthquake
The velocity with which most of the energy in a wave train travels.
Dilatancy (rock)
Natural environment; Earthquake
The increase in volume of rock due to a change in strain.
Hertz (Hz)
Natural environment; Earthquake
A unit of frequency, equal to the number of cycles per second. See frequency.
Dip
Natural environment; Earthquake
The angle of a fault or other planar geologic feature relative to horizontal.
