Ptwc Final Tsunami Threat Message

Discussion in 'Earthquake & Tsunami Alert's and News' started by PTWC, Dec 5, 2018 at 2:25 AM.

  1. PTWC

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    TSUPAC

    TSUNAMI MESSAGE NUMBER 6
    NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
    0709 UTC WED DEC 5 2018

    ...PTWC FINAL TSUNAMI THREAT MESSAGE...


    **** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

    THIS MESSAGE IS ISSUED FOR INFORMATION ONLY IN SUPPORT OF THE
    UNESCO/IOC PACIFIC TSUNAMI WARNING AND MITIGATION SYSTEM AND IS
    MEANT FOR NATIONAL AUTHORITIES IN EACH COUNTRY OF THAT SYSTEM.

    NATIONAL AUTHORITIES WILL DETERMINE THE APPROPRIATE LEVEL OF
    ALERT FOR EACH COUNTRY AND MAY ISSUE ADDITIONAL OR MORE REFINED
    INFORMATION.

    **** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

    THE TSUNAMI FORECAST IS UNCHANGED IN THIS MESSAGE.


    PRELIMINARY EARTHQUAKE PARAMETERS
    ---------------------------------

    * MAGNITUDE 7.6
    * ORIGIN TIME 0418 UTC DEC 5 2018
    * COORDINATES 22.1 SOUTH 169.2 EAST
    * DEPTH 10 KM / 6 MILES
    * LOCATION SOUTHEAST OF LOYALTY ISLANDS


    EVALUATION
    ----------

    * AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.6 OCCURRED
    SOUTHEAST OF THE LOYALTY ISLANDS AT 0418 UTC ON WEDNESDAY
    DECEMBER 5 2018.

    * BASED ON ALL AVAILABLE DATA... THE TSUNAMI THREAT FROM THIS
    EARTHQUAKE HAS NOW PASSED.


    TSUNAMI THREAT FORECAST...UPDATED
    ---------------------------------

    * THE TSUNAMI THREAT HAS NOW LARGELY PASSED.


    RECOMMENDED ACTIONS
    -------------------

    * GOVERNMENT AGENCIES RESPONSIBLE FOR ANY IMPACTED COASTAL
    AREAS SHOULD MONITOR CONDITIONS AT THE COAST TO DETERMINE IF
    AND WHEN IT IS SAFE TO RESUME NORMAL ACTIVITIES.

    * PERSONS LOCATED NEAR IMPACTED COASTAL AREAS SHOULD STAY ALERT
    FOR INFORMATION AND FOLLOW INSTRUCTIONS FROM LOCAL
    AUTHORITIES.

    * REMAIN OBSERVANT AND EXERCISE NORMAL CAUTION NEAR THE SEA.


    POTENTIAL IMPACTS
    -----------------

    * MINOR SEA LEVEL FLUCTUATIONS OF UP TO 0.3 METERS ABOVE AND
    BELOW THE NORMAL TIDE MAY CONTINUE OVER THE NEXT FEW HOURS.


    TSUNAMI OBSERVATIONS
    --------------------

    * THE FOLLOWING ARE TSUNAMI WAVE OBSERVATIONS FROM COASTAL
    AND/OR DEEP-OCEAN SEA LEVEL GAUGES AT THE INDICATED
    LOCATIONS. THE MAXIMUM TSUNAMI HEIGHT IS MEASURED WITH
    RESPECT TO THE NORMAL TIDE LEVEL.

    GAUGE TIME OF MAXIMUM WAVE
    COORDINATES MEASURE TSUNAMI PERIOD
    GAUGE LOCATION LAT LON (UTC) HEIGHT (MIN)
    -------------------------------------------------------------
    SUVA VITI LEVU FJ 18.1S 178.4E 0652 0.03M/ 0.1FT 38
    NUMBO NEW CALEDONIA 22.2S 166.4E 0613 0.04M/ 0.1FT 06
    THIO NEW CALEDONIA 21.6S 166.2E 0631 0.23M/ 0.8FT 12
    VANUATU 17.8S 168.3E 0601 0.30M/ 1.0FT 18
    HIENGHENE NEW CALED 20.7S 164.9E 0557 0.09M/ 0.3FT 22
    OUINNE NEW CALEDONI 22.0S 166.7E 0554 0.45M/ 1.5FT 06
    LIFOU NEW CALEDONIA 20.9S 167.3E 0522 0.29M/ 1.0FT 06
    MARE NEW CALEDONIA 21.5S 167.9E 0519 0.43M/ 1.4FT 10
    LENAKEL VU 19.5S 169.3E 0505 0.72M/ 2.4FT 06


    NEXT UPDATE AND ADDITIONAL INFORMATION
    --------------------------------------

    * THIS WILL BE THE FINAL STATEMENT ISSUED FOR THIS EVENT UNLESS
    NEW INFORMATION IS RECEIVED OR THE SITUATION CHANGES.

    * AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.
    GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT
    EARTHQUAKE.USGS.GOV/EARTHQUAKES -ALL LOWER CASE-.

    * FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND AT
    PTWC.WEATHER.GOV AND AT WWW.TSUNAMI.GOV.

    * COASTAL REGIONS OF HAWAII... AMERICAN SAMOA... GUAM... AND
    CNMI SHOULD REFER TO PACIFIC TSUNAMI WARNING CENTER MESSAGES
    SPECIFICALLY FOR THOSE PLACES THAT CAN BE FOUND AT
    PTWC.WEATHER.GOV.

    * COASTAL REGIONS OF CALIFORNIA... OREGON... WASHINGTON...
    BRITISH COLUMBIA AND ALASKA SHOULD ONLY REFER TO U.S.
    NATIONAL TSUNAMI WARNING CENTER MESSAGES THAT CAN BE FOUND
    AT NTWC.ARH.NOAA.GOV.

    $$

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