Tsunami Bulletin
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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WEGM42 PHEB 171457
TIBGUM
GUZ001-MPZ001>003-171657-
TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
1257 AM CHST SAT JUL 18 2026
...NO TSUNAMI THREAT TO GUAM/CNMI FROM A DISTANT EARTHQUAKE...
AUDIENCE
--------
EMERGENCY MANAGERS... MEDIA... GENERAL PUBLIC
EVALUATION
----------
* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.4 OCCURRED
NEAR THE COAST OF CHIAPAS, MEXICO AT 1249 AM CHST ON
SATURDAY JULY 18 2026.
* BASED ON ALL AVAILABLE DATA... THERE IS NO TSUNAMI THREAT TO
GUAM... ROTA... TINIAN OR SAIPAN FROM THIS EARTHQUAKE.
RECOMMENDED ACTIONS
-------------------
* NO ACTION IS REQUIRED.
POTENTIAL IMPACTS
-----------------
* NO TSUNAMI IMPACTS ARE EXPECTED.
PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
* MAGNITUDE 7.4
* ORIGIN TIME 1249 AM CHST JUL 18 2026
* COORDINATES 14.4 NORTH 93.0 WEST
* DEPTH 6 MILES
* LOCATION NEAR THE COAST OF CHIAPAS MEXICO
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.
$$