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WEME40 LTAA 231150

TSUNAMI MESSAGE NUMBER 005

NEAM TSUNAMI SERVICE PROVIDER KOERI (TURKIYE)

ISSUED AT 1150Z 23 APR 2025



THIS ALERT IS ADDRESSED TO ALL COUNTRIES AND INSTITUTIONS SUBSCRIBED TO THE SERVICES OF KOERI NEAM TSP IN ITS MONITORING AREA.



... TSUNAMI ADVISORY ONGOING ...

THIS ALERT APPLIES TO TURKIYE



THIS MESSAGE IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLY NATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKE DECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA AND ANY ACTIONS TO BE TAKEN IN RESPONSE.



AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 0949Z 23 APR 2025

COORDINATES - 40.86 NORTH 28.23 EAST

DEPTH - 10.00 KM

LOCATION - TURKEY

MAGNITUDE - 6.3 [Mwp]



MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY.



COUNTRY       GAUGE LOCATION       LAT     LON        TIME      AMPLITUDE(M) PERIOD(MIN)

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

TURKIYE       ISTANBUL SILIVRI   41.0724 28.2390  0950Z 23 APR     00.03       02.1

TURKIYE       TEKIRDAG M.EREGLI  40.9690 27.9622  0954Z 23 APR     00.02       06.4

TURKIYE       YALOVA ESENKOY     40.6183 28.9532  1003Z 23 APR     00.04       04.8

TURKIYE       BALIKESIR ERDEK    40.4924 27.9761  1006Z 23 APR     00.06       06.4

TURKIYE       TEKIRDAG SARKOY    40.7098 27.3143  1010Z 23 APR     00.05       06.4



LAT - LATITUDE (N-NORTH)

LON - LONGITUDE (E-EAST)

TIME - TIME OF THE MEASUREMENT (Z IS UTC TIME)

AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.

IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.

VALUES ARE GIVEN IN METERS (M).

PER - PERIOD OF TIME IN MINUTES (MIN) FROM ONE WAVE TO THE NEXT.



EVALUATION OF TSUNAMI ADVISORY

SEA LEVEL READINGS INDICATE A TSUNAMI WAS GENERATED. THIS TSUNAMI CAN STRIKE COASTLINES WITH A WAVE HEIGHT LESS THAN 0.5M AND/OR CAUSE A TSUNAMI RUN-UP LESS THAN 1M. THIS CENTER WILL CONTINUE TO MONITOR SEA LEVEL GAUGES NEAREST THE REGION AND REPORT IF ANY ADDITIONAL TSUNAMI WAVE ACTIVITY IS OBSERVED. AUTHORITIES SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THIS POSSIBILITY. A TSUNAMI IS A SERIES OF WAVES AND THE FIRST WAVE MAY NOT BE THE LARGEST. TSUNAMI WAVE HEIGHTS CANNOT BE PREDICTED AND CAN VARY SIGNIFICANTLY ALONG A COAST DUE TO LOCAL EFFECTS. THE TIME FROM ONE TSUNAMI WAVE TO THE NEXT CAN BE FIVE MINUTES TO AN HOUR, AND THE THREAT CAN CONTINUE FOR MANY HOURS AS MULTIPLE WAVES ARRIVE.SUPPLEMENT MESSAGES WILL BE ISSUED AS SOON AS NEW DATA AND EVALUATION ALLOWS. THE TSUNAMI ALERT WILL REMAIN IN EFFECT UNTIL AN END OF ALERT IS BROADCAST.



END OF TSUNAMI MESSAGE NUMBER 005=