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BULLETIN TSUNAMI MESSAGE NUMBER 20 NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI 138 PM HST SAT FEB 27 2010

Written by magnolia_eic on 28 February 2010

TO – CIVIL DEFENSE IN THE STATE OF HAWAII

SUBJECT – TSUNAMI WARNING CANCELLATION

THE TSUNAMI WARNING IS CANCELLED FOR THE STATE OF HAWAII EFFECTIVE
AT 0138 PM HST.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME – 0834 PM HST 26 FEB 2010
COORDINATES – 36.1 SOUTH 72.6 WEST
LOCATION – NEAR COAST OF CENTRAL CHILE
MAGNITUDE – 8.8 MOMENT

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER
——————- —– —— —– ————— —–
KAWAIHAE HAWAII 20.0N 155.8W 2211Z 0.52M / 1.7FT 24MIN
BARBERS PT HI 21.3N 158.1W 2140Z 0.19M / 0.6FT 76MIN
KAUMALAPAU HAWAII 20.8N 156.9W 2136Z 0.18M / 0.6FT 56MIN
KAHULUI MAUI 20.9N 156.5W 2147Z 0.98M / 3.2FT 22MIN
NAWILIWILI KAUAI 22.0N 159.4W 2151Z 0.28M / 0.9FT 44MIN
PAGO PAGO AS 14.3S 170.7W 2132Z 0.66M / 2.2FT 12MIN

LAT – LATITUDE (N-NORTH, S-SOUTH)
LON – LONGITUDE (E-EAST, W-WEST)
TIME – TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME)
AMPL – TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.
IT IS …NOT… CREST-TO-TROUGH WAVE HEIGHT.
VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).
PER – PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.

EVALUATION

BASED ON ALL AVAILABLE DATA THERE IS NO LONGER A DESTRUCTIVE
TSUNAMI THREAT TO THE STATE OF HAWAII. THEREFORE THE TSUNAMI
WARNING FOR HAWAII IS CANCELLED.

HOWEVER SOME COASTAL AREAS IN HAWAII MAY CONTINUE TO EXPERIENCE
SMALL SEA LEVEL CHANGES AND STRONG OR UNUSUAL CURRENTS LASTING
FOR SEVERAL MORE HOURS.

THIS TSUNAMI WARNING CANCELLATION DOES NOT MEAN IT IS NOW SAFE TO
RESUME NORMAL ACTIVITIES OR REENTER EVACUATED SHORELINE AREAS.
YOUR COUNTY CIVIL DEFENSE AGENCY AND POLICE DEPARTMENT WILL MAKE
THIS DETERMINATION. STAY TUNED TO YOUR LOCAL BROADCAST STATION FOR
THE CIVIL DEFENSE -ALL CLEAR- ANNOUNCEMENT FOR YOUR AREA.

REPEAT -
DO NOT REENTER EVACUATED SHORELINE AREAS UNTIL ANNOUNCED BY YOUR
COUNTY CIVIL DEFENSE AGENCY. STAY TUNED TO YOUR LOCAL BROADCAST
STATION FOR THE -ALL CLEAR- ANNOUNCEMENT FOR YOUR AREA. PLEASE
YIELD TO ROADBLOCKS AND UNIFORMED OFFICERS WHO ARE CONTROLLING
REENTRY INTO EVACUATED SHORELINE AREAS.

THIS WILL BE THE FINAL MESSAGE ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE RECEIVED.

Click here for tsunami advisories.

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