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WEPA40 RJTD 131334

TSUNAMI BULLETIN NUMBER 002

   ISSUED BY NWPTAC(JMA)

   ISSUED AT 1334Z 13 JAN 2025

PART 01 OF 01 PARTS



HYPOCENTRAL PARAMETERS (REVISION)

ORIGIN TIME:1219Z 13 JAN 2025

PRELIMINARY EPICENTER:LAT31.8NORTH LON131.6EAST

 KYUSHU, JAPAN

 SOUTHWESTERN JAPAN AND RYUKYU ISLANDS

MAG:6.8 (MW)



EVALUATION

 THERE IS A VERY SMALL POSSIBILITY OF A DESTRUCTIVE LOCAL TSUNAMI



ESTIMATION AT FORECAST POINTS - NO TSUNAMI WAVES WITH AN AMPLITUDE

OF 0.3 METERS OR MORE ARE EXPECTED AT ANY FORECAST POINT.



HOWEVER, IN SOME COASTAL AREAS (PARTICULARLY NEAR THE EPICENTER),

HIGHER TSUNAMI WAVES THAN ESTIMATED MAY ARRIVE.

AUTHORITIES SHOULD BE AWARE OF THIS POSSIBILITY.



MEASUREMENTS OR REPORTS OF TSUNAMI

 LOCATION                       COORDINATES ARRIVAL TIME  AMPL

 TOSASHIMIZU                    32.8N 133.0E

                       MAXIMUM TSUNAMI WAVE 1321Z 13 JAN  0.1M



MAXIMUM TSUNAMI WAVE - HALF THE AMPLITUDE FROM THE TROUGH

TO THE CREST



THIS WILL BE THE FINAL BULLETIN UNLESS CHANGES IN THE POTENTIAL

FOR TSUNAMI GENERATION ARE DEEMED POSSIBLE BASED ON EARTHQUAKE

RE-EVALUATION OR REPORTS INDICATING TSUNAMI OBSERVATION ARE

RECEIVED.



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