WEME40 LGAT 260103

TSUNAMI MESSAGE NUMBER 002

NEAM NOA HL-NTWC TSUNAMI SERVICE PROVIDER

ISSUED AT 0102Z 26 OCT 2018



... TSUNAMI WATCH ONGOING ...

THIS ALERT APPLIES TO $COUNTRIES_WATCH$



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  - 2254 UTC THU OCT 25 2018

COORDINATES  - 37.53 NORTH 20.62 EAST

DEPTH        - 10.0 KM

LOCATION     - IONIAN SEA

MAGNITUDE    - 6.8 ML



EVALUATION OF TSUNAMI WATCH

SEA LEVEL READINGS INDICATE A TSUNAMI WAS GENERATED.

THIS TSUNAMI CAN STRIKE COASTLINES WITH A WAVE HEIGHT GREATER THAN 0.5M AND/OR

CAUSE A TSUNAMI RUN-UP GREATER 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.



ESTIMATED INITIAL TSUNAMI WAVE ARRIVAL TIMES AT FORECAST POINTS WITHIN THE

WATCH/ADVISORY AREA GIVEN BELOW. ACTUAL ARRIVAL TIMES MAY DIFFER AND THE INITIAL

WAVE MAY NOT BE THE LARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEEN

SUCCESSIVE WAVES CAN BE FIVE MINUTES TO ONE HOUR.



LOCATION                  FP COORDINATES  ARRIVAL TIME  ALERT LEVEL

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

$LIST_CALC_ORDBY_AL_LEVEL_COUNTRY_ARRTIME_WA$



MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

COUNTRY       GAUGE LOCATION     LAT     LON     TIME    AMPL      PER

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

GREECE        KYPARISSIA         37.26   21.66   23:03 UT 0.12     0.0



LAT - LATITUDE (N-NORTH, S-SOUTH)

LON - LONGITUDE (E-EAST, W-WEST)

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.



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.