Tsunami Advisory for HI
Posted by JAC on 7/15/2009, 6:48 am
TSUNAMI MESSAGE NUMBER  2
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
1235 AM HST WED JUL 15 2009

TO - CIVIL DEFENSE IN THE STATE OF HAWAII

SUBJECT - TSUNAMI ADVISORY SUPPLEMENT

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

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

  ORIGIN TIME - 1123 PM HST 14 JUL 2009
  COORDINATES - 46.0 SOUTH  166.3 EAST
  LOCATION    - OFF W. COAST OF S. ISLAND  N.Z.
  MAGNITUDE  - 7.8  MOMENT

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION        LAT  LON    TIME        AMPL        PER
-------------------  ----- ------  -----  ---------------  -----
Jackson Bay, NZ    43.97S 168.62E  10:18Z    0.17M          10min

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

THE PACIFIC TSUNAMI WARNING CENTER HAS ISSUED A NON-EXPANDING
REGIONAL TSUNAMI WARNING FOR A PART OF THE PACIFIC NEAR THE
EARTHQUAKE. BASED ON ALL AVAILABLE DATA THERE IS NO DESTRUCTIVE
TSUNAMI THREAT TO HAWAII.

HOWEVER... SOME COASTAL AREAS IN HAWAII COULD EXPERIENCE SMALL
NON-DESTRUCTIVE SEA LEVEL CHANGES AND STRONG OR UNUSUAL CURRENTS
LASTING UP TO SEVERAL HOURS. THE ESTIMATED TIME SUCH EFFECTS
MIGHT BEGIN IS

                    1107 AM HST WED 15 JUL 2009

MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS WARRANT.

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Huge 7.8 Quake off New Zealand - JAC, 7/15/2009, 6:35 am
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