Related to, or caused by an earthquake or other vibration of the Earth. / (figuratively) Of very large or widespread effect.

(geology) A measure or a degree of how seismic a region is or how prone it is to earthquakes.

In a seismic manner; with the qualities of an earthquake.

plural of seismicity

seismic

(geology) the region between the surface of the Earth and the asthenosphere characterized by the efficient propagation of seismic waves

A technique used to determine the nature of sedimentary rocks by the analysis of seismic data; used especially in oil prospecting

An assessment of the probability that the social or economic consequences of an earthquake would exceed a specific value at a specific place and time; used in the planning of buildings etc.

Any of several forms of vibrational waves that travel through the Earth as the result of an earthquake or underground explosion.

(geology) A quantity used to determine the size of an earthquake. Calculated either from a seismogram, or from the measurement of the area affected and the displacement of the rocks.