Earthquake Hazards Program
The period is the time interval required for one full cycle of a wave.
(Image courtesy of ThinkQuest)
Share this page:
U.S. Department of the Interior | U.S. Geological Survey
Page URL: http://earthquake.usgs.gov/learn/glossary/?termID=134
Page Contact Information: Contact Us
Page Last Modified: July 18, 2012 18:52:28 UTC