ZCZC
WEPA42 PHEB 162024
TIBPAC

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
2017 UTC SUN JAN 16 2022

...PTWC TSUNAMI INFORMATION STATEMENT...


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

 THIS STATEMENT 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 *****


EVALUATION
----------
  * SEA LEVEL READINGS AT PAGO PAGO HARBOR REGISTERED A WAVE
    WITH AN AMPLITUDE OF 36 CM, EXCEEDING ADVISORY LEVEL OF 30 CM.

  * THIS MIGHT BE FROM ANOTHER EXPLOSION OF TONGA VOLCANO.
    THERE ARE NO KNOWN EARTHQUAKES OF SIGNIFICANT SIZE TO
    GENERATE THIS WAVE.


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

  * NO ACTION IS REQUIRED.

  * BE MINDFUL OF WATER LEVEL CHANGES IN HARBORS AND NEAR THE
    COAST.


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)
    -------------------------------------------------------------
    PAGO PAGO AS         14.3S 170.7W    1943   0.36M/ 1.2FT  16


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

  * PTWC IS MONITORING WATER LEVEL MEASUREMENTS AT TIDE GAUGES.
    WE WILL UPDATE WITH FOLLOWUP MESSAGES IF THE SITUATION REQUIRES.


  * 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.

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