ML20137S312

Environ Event Rept:On 850919,FEMA Notified Util of Tsunami Warning for State of CA Coast Due to Mexican Earthquake.Event Terminated.Plant Unaffected

ML20137S312
Person / Time
Site:	Diablo Canyon
Issue date:	09/19/1985
From:	Thornberry R PACIFIC GAS & ELECTRIC CO.
To:	Briam W CALIFORNIA, STATE OF
References
NUDOCS 8509300047
Download: ML20137S312 (2)

Text

9 PACIFIC G-A S AND E LE C T R.I C C O M PANY DIABLO CANYON POWER PLANT T

ggggggggl PO. Box 56. Avda Beach, Ca:.fomia 93424 -(805) 595-7351 e==<-m AC.THORNBERRY AANT MA*v&GER September 19, 1985

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Mr. William Briam, Administrator San Luis Obispo County Administrative Office County Government Center San Luis Obispo, CA 93408

Dear Mr Briam:

Pursuant to NUREG-0654, Revision 1 Appendix 1, the following is a summary report concerning an Unusual Event at the Diablo Canyon Nuclear Power Plaat site.

At 0740 PDT, on September 19, 1985, Diablo Canyon Power Plant receiveri notification that the Federal Emergency Management Agency (FEMA) had issued a tsunami warning for the California coast up to Crescent City, California due to an earthquake (7.8 on Richter Scale) 150 miles northwest of Acapulco.

An Unusual Event was declared by the Shift Foreman at 0752 PDT and emergency notifications were completed by 0815 PDT.

The Unusual Event was terminated at 0930 hours0.0108 days <br />0.258 hours <br />0.00154 weeks <br />3.53865e-4 months <br />, September 19, 1985 after receiving a clarification from NRC Bethesda that a tsunami watch should be designated instead of a tsunami warning since there is no evidence of the existence of a tsunami. This event has in no way affected the health and safety of the public and no discharge of radioactive materials was made to the i environment.

Sincerely, l

f0Y ROBERT C. THORNBERRY RCT:jhr l

8509300047 850919 O

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S PDR DC0456 II -

, Mr. William Briam September 19, 1985

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i cc Mr. Benjamin P. Tong, Chief Nuclear Power Plant Planning P. O. Box 9577 Sacramento, CA 95823 4

Mr. John B. Martin, Administrator U. S. Nuclear Regulatory Commission, Region V 1450 Maria Lane, Suite 210 Walnut Creek, CA 94596-5368

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l Mr. George Whiting, Sheriff San Luis Obispo County P. O. Box 32 ,

San Luis Obispo, CA 93401 i

'. Me. George W. Knighton, Chief 4 Licensing Branch No. 3 Division of Licensing Office of Nu: lear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Director, Office of Management Information and Program Control U. S. Nuclear Regulatory Commission Washington, D. C. 20555 i

l DC0456 21

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