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000
WEHW40 PHEB 280910
TSUHWX
HIZ001>003-005>009-012>014-016>021-023>026-281110-
/O.CON.PHEB.TS.W.0001.000000T0000Z-000000T0000Z/

BULLETIN
TSUNAMI MESSAGE NUMBER   8
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
1106 PM HST SAT OCT 27 2012

TO - CIVIL DEFENSE IN THE STATE OF HAWAII

SUBJECT - TSUNAMI WARNING SUPPLEMENT

A TSUNAMI WARNING CONTINUES IN EFFECT FOR THE STATE OF HAWAII.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

   ORIGIN TIME - 0504 PM HST 27 OCT 2012
   COORDINATES - 52.8 NORTH  131.8 WEST
   LOCATION    - QUEEN CHARLOTTE ISLANDS REGION
   MAGNITUDE   - 7.7  MOMENT

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

 GAUGE LOCATION        LAT   LON    TIME        AMPL         PER
 -------------------  ----- ------  -----  ---------------  -----
 KAHULUI MAUI         20.9N 156.5W  0844Z   0.57M /  1.9FT  14MIN
 WAIANAE HI           21.4N 158.2W  0855Z   0.16M /  0.6FT  06MIN
 HALEIWA HI           21.6N 158.1W  0844Z   0.43M /  1.4FT  10MIN
 HANALEI HI           22.2N 159.5W  0843Z   0.17M /  0.6FT  22MIN
 MAKAPU`U HI          21.3N 157.7W  0849Z   0.41M /  1.3FT  08MIN
 HILO HAWAII          19.7N 155.1W  0834Z   0.21M /  0.7FT  44MIN
 DART 46410           57.6N 143.8W  0428Z   0.03M /  0.1FT  32MIN
 DART 46409           55.3N 148.5W  0444Z   0.02M /  0.1FT  38MIN
 DART 46403           52.7N 156.9W  0528Z   0.02M /  0.1FT  26MIN
 DART 46402           51.1N 164.0W  0609Z   0.02M /  0.1FT  24MIN
 DART 46404           45.9N 128.8W  0423Z   0.05M /  0.1FT  30MIN
 DART 46407           42.6N 128.9W  0456Z   0.07M /  0.2FT  28MIN
 SITKA AK             57.1N 135.3W  0542Z   0.09M /  0.3FT  30MIN
 CRESCENT CITY CA     41.7N 124.2W  0736Z   0.42M /  1.4FT  24MIN
 DART 46419           48.8N 129.6W  0344Z   0.07M /  0.2FT  20MIN
 ARENA COVE CA        38.9N 123.7W  0633Z   0.32M /  1.1FT  06MIN
 WINTER HARBOUR BC    50.5N 128.0W  0413Z   0.23M /  0.8FT  30MIN
 LANGARA POINT BC     54.2N 133.1W  0424Z   0.20M /  0.7FT  26MIN

 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.

 NOTE - DART MEASUREMENTS ARE FROM THE DEEP OCEAN AND THEY
        ARE GENERALLY MUCH SMALLER THAN WOULD BE COASTAL
         MEASUREMENTS AT SIMILAR LOCATIONS.

EVALUATION

 A TSUNAMI HAS BEEN GENERATED THAT COULD CAUSE DAMAGE ALONG
 COASTLINES OF ALL ISLANDS IN THE STATE OF HAWAII. URGENT ACTION
 SHOULD BE TAKEN TO PROTECT LIVES AND PROPERTY.

 A TSUNAMI IS A SERIES OF LONG OCEAN WAVES. EACH INDIVIDUAL WAVE
 CREST CAN LAST 5 TO 15 MINUTES OR MORE AND EXTENSIVELY FLOOD
 COASTAL AREAS. THE DANGER CAN CONTINUE FOR MANY HOURS AFTER THE
 INITIAL WAVE AS SUBSEQUENT WAVES ARRIVE. TSUNAMI WAVE HEIGHTS
 CANNOT BE PREDICTED AND THE FIRST WAVE MAY NOT BE THE LARGEST.
 TSUNAMI WAVES EFFICIENTLY WRAP AROUND ISLANDS. ALL SHORES ARE AT
 RISK NO MATTER WHICH DIRECTION THEY FACE. THE TROUGH OF A TSUNAMI
 WAVE MAY TEMPORARILY EXPOSE THE SEAFLOOR BUT THE AREA WILL
 QUICKLY FLOOD AGAIN. EXTREMELY STRONG AND UNUSUAL NEARSHORE
 CURRENTS CAN ACCOMPANY A TSUNAMI. DEBRIS PICKED UP AND CARRIED
 BY A TSUNAMI AMPLIFIES ITS DESTRUCTIVE POWER. SIMULTANEOUS HIGH
 TIDES OR HIGH SURF CAN SIGNIFICANTLY INCREASE THE TSUNAMI HAZARD.

 THE ESTIMATED ARRIVAL TIME IN HAWAII OF THE FIRST TSUNAMI WAVE IS

                     1028 PM HST SAT 27 OCT 2012

MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS WARRANT.

$$