ZCZC
WEGM42 PHEB 200013
TIBGUM

GUZ001>004-200213-

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
1013 AM CHST FRI OCT 20 2023

...NO TSUNAMI THREAT TO GUAM/CNMI FROM A NEARBY EARTHQUAKE...


AUDIENCE
--------
EMERGENCY MANAGERS... MEDIA... GENERAL PUBLIC


EVALUATION
----------

  * AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 5.9 OCCURRED
    ABOUT 114 MILES SOUTHWEST OF GUAM AT 1004 AM CHST ON FRIDAY
    OCTOBER 20 2023.

  * BASED ON ALL AVAILABLE DATA... THERE IS NO TSUNAMI THREAT TO
    GUAM... ROTA... TINIAN OR SAIPAN FROM THIS EARTHQUAKE.

  * SOME AREAS MAY HAVE EXPERIENCED SHAKING.


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

  * NO ACTION IS REQUIRED.


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

  * NO TSUNAMI IMPACTS ARE EXPECTED.


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

  * MAGNITUDE      5.9
  * ORIGIN TIME    1004 AM CHST OCT 20 2023
  * COORDINATES    12.2 NORTH  143.4 EAST
  * DEPTH          6 MILES
  * LOCATION       ABOUT 114 MILES SOUTHWEST OF GUAM


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

  * THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
    ADDITIONAL DATA ARE RECEIVED OR THE SITUATION CHANGES.

  * FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND ON THE
    INTERNET AT WWW.TSUNAMI.GOV.

  * AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.
    GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT
    EARTHQUAKE.USGS.GOV.

$$



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