Earth science

Earth science

Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.

7Categories 223518Terms

Add a new term

Contributors in Earth science

Become a Contributors

Earth science > Seismology

intensity of earthquake

Earth science; Seismology

A measure of ground shaking obtained from the damage done to structures built by humans, changes in the Earth's surface, and felt reports.

dilatancy of rocks

Earth science; Seismology

The increase in the volume of rocks mainly due to pervasive microcracking.

heave

Earth science; Seismology

The horizontal component of separation or displacement on a fault.

Nyquist frequency

Earth science; Seismology

The highest angular frequency found in the spectra of digital data used to avoid aliasing (see aliasing).

source function

Earth science; Seismology

The ground motion generated at the fault during rupture, usually as predicted by a theoretical model and represented by a time history or spectrum. The terms Brune spectrum, Aki ...