Earthquake 07 : Natural Disaster. A naturally occurring shaking motion of the Earth's surface. Earthquakes are caused when stress, building up within rocks of the Earth's crust, is released in a sudden jolt
Landslides in British Columbia - Glossary, Information Circular 1993-7, Government of British Columbia, BC Geological Survey, Ministry of Energy, Mines and Petroleum Resources, Victoria, B.C., Australia 1997. http://www.empr.gov.bc.ca/Mining/Geoscience/Surfic ialgeologyandhazards/Earthquakes/Pages/Glossary1.a spx, (ND/ Gen - Canad) {130}