Latest Tsunami Report for Hawaii

Pacific Tsunami Warning Center

West Oahu is proud to be home of the headquarters of The Pacific Tsunami Warning Center, which is located in Ewa Beach. The warning center is responsible for tsunami analysis and warnings for the State of Hawaii. In addition, PTWC issues warnings on all potential tsunami generation within the entire Pacific rim (excluding the US mainland) and Indian ocean realm that could affect other countries; PTWC also issues warnings in the Atlantic region specifically to Puerto Rico and the US Virgin Islands.

To view locations outside of Hawaii, including the Pacific islands, Puerto Rico, and Indian ocean regions, click here.

If there has been a recent tsunami alert in Hawaii, please monitor NOAA Emergency Radio, which can be listened to on the Internet by going here.

Latest (last known report) Tsunami Reports from the Pacific Tsunami Warning Center in Ewa Beach, HI.

All Data is pulled live directly from PTWC.

Latest Information as of Tue, 29 Sep 2009 19:24:46 -1000

BULLETIN
TSUNAMI MESSAGE NUMBER   3
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
1023 AM HST TUE SEP 29 2009

TO - CIVIL DEFENSE IN THE STATE OF HAWAII

SUBJECT - TSUNAMI WATCH CANCELLATION...TSUNAMI ADVISORY IN
         EFFECT

THE TSUNAMI WATCH IS CANCELLED FOR THE STATE OF HAWAII EFFECTIVE
AT 1023 AM HST AND A TSUNAMI ADVISORY IS IN EFFECT.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

  ORIGIN TIME - 0748 AM HST 29 SEP 2009
  COORDINATES - 15.3 SOUTH  171.0 WEST
  LOCATION    - SAMOA ISLANDS REGION
  MAGNITUDE   - 8.3  MOMENT
  MAGNITUDE   - 8.0  RICHTER (MS)

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION        LAT   LON    TIME        AMPL         PER
-------------------  ----- ------  -----  ---------------  -----
RAROTONGA CK         21.2S 159.8W  1951Z   0.47M /  1.5FT  08MIN
APIA UPOLU WS        13.8S 171.8W  1832Z   0.70M /  2.3FT  08MIN
PAGO PAGO AS         14.3S 170.7W  1812Z   1.57M /  5.1FT  04MIN

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 A MAJOR TSUNAMI IS NOT EXPECTED
TO STRIKE THE STATE OF HAWAII. HOWEVER SEA LEVEL CHANGES AND
STRONG CURRENTS MAY OCCUR ALONG THE COAST THAT COULD BE A
HAZARD TO SWIMMERS...BOATERS AND BEACHES.  THEREFORE THE
TSUNAMI WATCH FOR HAWAII IS CANCELLED BUT A TSUNAMI ADVISORY
IS IN EFFECT.

THE ESTIMATED TIME SUCH EFFECTS MIGHT BEGIN IS

                    100 PM HST TUE 29 SEP 2009

UNLESS FURTHER INFORMATION IS RECEIVED THE ADVISORY IS IN EFFECT
UNTIL
                    700 PM HST TUE 29 SEP 2009

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