EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > GEOLOGICAL ADVISORIES > EARTHQUAKES
A sudden motion or trembling in the Earth caused by the abrupt release of
slowly accumulated strain in the Earth's lithosphere.
An Earthquake Advisory may report on earthquakes occurring in a particular
region and define areas most vulnerable to earthquake damage.
Adapted from Jackson, Julia A. (1997) Glossary of Geology, 4th Edition.
Alexandria, VA: American Geological Institute, 769 p.