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6.6 magnitude earthquake near Santa Cruz Islands, no tsunami threat to Hawaii


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TSUNAMI BULLETIN NUMBER 001
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 0417Z 10 AUG 2009
(Earthquake occurred Aug 9, 2009 at 6 p.m. HST)

THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC OCEAN AND ADJACENT SEAS…EXCEPT ALASKA…BRITISH COLUMBIA… WASHINGTON…OREGON AND CALIFORNIA.

… TSUNAMI INFORMATION BULLETIN …

THIS BULLETIN IS FOR INFORMATION ONLY.

THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLY NATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKE DECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA AND ANY ACTIONS TO BE TAKEN IN RESPONSE.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME – 0407Z 10 AUG 2009
COORDINATES – 11.7 SOUTH 166.2 EAST
DEPTH – 33 KM
LOCATION – SANTA CRUZ ISLANDS
MAGNITUDE – 6.6

EVALUATION

NO DESTRUCTIVE WIDESPREAD TSUNAMI THREAT EXISTS BASED ON HISTORICAL EARTHQUAKE AND TSUNAMI DATA.

HOWEVER – EARTHQUAKES OF THIS SIZE SOMETIMES GENERATE LOCAL TSUNAMIS THAT CAN BE DESTRUCTIVE ALONG COASTS LOCATED WITHIN A HUNDRED KILOMETERS OF THE EARTHQUAKE EPICENTER. AUTHORITIES IN THE REGION OF THE EPICENTER SHOULD BE AWARE OF THIS POSSIBILITY AND TAKE APPROPRIATE ACTION.

THIS WILL BE THE ONLY BULLETIN ISSUED FOR THIS EVENT UNLESS ADDITIONAL INFORMATION BECOMES AVAILABLE.

THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTS FOR ALASKA…BRITISH COLUMBIA…WASHINGTON…OREGON…CALIFORNIA.

2 Responses to “6.6 magnitude earthquake near Santa Cruz Islands, no tsunami threat to Hawaii”

  1. steven hopper says:

    why is it that inly on your web site’s bulletin, do interested persons find a time reference to event that is useful to normal people, ie; your site’s ref. bulletin mentions ‘Hawaii time’ and Zulu time? I have to ask as I’ve requestede my cur4rent alert supplier (tsunami-information-ioc@lists.unesco.org ) to define a time zone rather than zulu or GMT times, but never have I received any reply back. People needing this info are not ‘rocket scientists’ and it seems a public organization should be user friendly as opposed to survey tech and global time references which are not reqadily interpretatble to the public. Any reply or suggestions appreciated.

    • Baron says:

      Z (Zulu time) also, UTC (Universal Coordinated Time or Universal Time Coordinated) and GMT (Greenwich Mean Time) all are the same thing.

      Yes, it’s confusing and other than Swatch watch company coming up with Swatch Internet Time it looks like the world is stuck with these different names and time zones. Most science publications will use UTC as the standard which is why you’ll see that on most posts for H1N1 Flu stories from WHO or from NASA or NWS.

      I have put a Time Zone Converter on the right sidebar. Over there –>

      This will allow folks to convert various times listed in story posts to their own local time and day.

      I’m still waiting for the metric system to grab hold in the U.S. We had a chance when fuel prices went so high they changed all the gas pumps to liters when the numbers were mechanical tumblers. But I’m sure the biggest drawback would be sports record books.

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