West Coast 7.4
June 15, 2005

Calif. Quake Prompts Brief Tsunami Warning
Yahoo News, June 14, 2005
A powerful earthquake roiled the waters off the northern California coast, triggering a brief tsunami warning and the evacuation of thousands of residents from a community with a history of battling killer waves. The 7.0-magnitude quake struck at about 7:50 p.m. Tuesday about 90 miles southwest of the coastal community of Crescent City and 300 miles northwest of San Francisco, according to the U.S. Geological Survey. A tsunami warning was briefly in effect from the California-Mexico border north to Vancouver Island, British Columbia, but was called off about an hour after the quake hit. There were no reports of significant damages or injuries. The area hit is where the North American, Pacific Ocean and Juan de Fuca plates converge and has earthquakes of this magnitude about once a decade, said Lucy Jones, the scientist in charge of the U.S. Geological Survey office in Pasadena.

USGS lists as a 7.0 but the initial magnitude, during a tsunami warning, had it listed as 7.4.

TSUNAMI WARNING IS IN EFFECT FOR THE COASTAL AREAS FROM...

NATIONAL WEATHER SERVICE SAN FRANCISCO CA
830 PM PDT TUE JUN 14 2005

CAZ005-006-009-074-075-150600-
SONOMA AND MARIN COUNTIES-SAN FRANCISCO-
COASTAL MONTEREY COUNTY-
SANTA CRUZ COUNTY-SAN MATEO COUNTY-
830 PM PDT TUE JUN 14 2005

...A TSUNAMI WARNING IS IN EFFECT FOR THE COASTAL AREAS FROM THE
CALIFORNIA-MEXICO BORDER TO THE NORTH TIP OF VANCOUVER ISLAND
BRITISH COLUMBIA INCLUSIVE...

EARTHQUAKE DATA...
PRELIMINARY MAGNITUDE 7.4
LOCATION... 41.3 NORTH 125.7 WEST... OR 90 MILES NW OF EUREKA, CA
AND 300 MILES NW OF SAN FRANCISCO CA AT 751 PM PDT.

IT IS NOT KNOWN...REPEAT NOT KNOWN...IF A TSUNAMI EXISTS...BUT A
TSUNAMI MAY HAVE BEEN GENERATED. THEREFORE PERSONS IN LOW LYING
COASTAL AREAS SHOULD BE ALERT TO INSTRUCTIONS FROM THEIR LOCAL
EMERGENCY OFFICIALS. PERSONS ON THE BEACH SHOULD MOVE TO HIGHER
GROUND IF IN A WARNED AREA. TSUNAMIS MAY BE A SERIES OF WAVES WHICH
COULD BE DANGEROUS FOR SEVERAL HOURS AFTER THE INITIAL WAVE ARRIVAL.

THIS TSUNAMI WARNING INCLUDES THE ENTIRE CALIFORNIA COAST. ESTIMATED
TIME OF ARRIVAL IN THE SAN FRANCISCO AREA IS APPROXIMATELY 923 PM
PDT.