is a series of waves or surges that is most often caused by earthquake fault movement beneath the sea floor.
TSUNAMIS can cause great loss of life and property damage in coastal areas. very large tsunamis can cause damage to coastal regions thousands of miles away from the earthquake that caused them.
Thirty-four tsunamis have been recorded on the northern California coast since 1933. most were very small, but five caused damage. The most damage was caused by a tsunami generated by the M 9.2 1964 alaska earthquake. it flooded 29 blocks of Crescent City’s waterfront, damaged harbors and port facilities as far south as Santa Cruz, and caused 12 deaths in California.
Contact Lori Dengler
Professor of Geology
Humboldt State University