####018003753####
WEPA40 PHEB 030202

TSUPAC

 

TSUNAMI MESSAGE NUMBER 4

NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI

0158 UTC WED APR 3 2024

 

...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      7.5

  * ORIGIN TIME    2358 UTC APR 2 2024

  * COORDINATES    23.8 NORTH  121.7 EAST

  * DEPTH          11 KM / 7 MILES

  * LOCATION       TAIWAN

 



EVALUATION

----------

 

  * AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.5 OCCURRED IN

    TAIWAN AT 2358 UTC ON TUESDAY APRIL 2 2024.

 

  * 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)

    -------------------------------------------------------------

    HUALIEN TW           24.0N 121.6E    0008   1.00M/ 3.3FT  10

    ISHIGAKIJIMA JP      24.3N 124.2E    0134   0.16M/ 0.5FT  14

    CHENGONG TW          23.1N 121.4E    0041   0.45M/ 1.5FT  18

    LONGDONG TW          25.1N 121.9E    0029   0.21M/ 0.7FT  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.

 

  * FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND 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

    WWW.TSUNAMI.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 WWW.TSUNAMI.GOV.

 

$$