WEMM40 LIIB 170722

TSUNAMI MESSAGE NUMBER 001

NEAM INGV IT-NTWC CANDIDATE TSUNAMI SERVICE PROVIDER

ISSUED AT 0722Z 17 NOV 2015



... TSUNAMI ADVISORY ...

THIS ALERT APPLIES TO GREECE



... TSUNAMI INFORMATION ...

THIS ALERT APPLIES TO ALBANIA ALGERIA BOSNIA CROATIA CYPRUS EGYPT FRANCE GREECE ISRAEL ITALY LEBANON LYBIA MALTA MONACO MONTENEGRO MOROCCO SLOVENIA SPAIN SYRIA TUNISIA TURKEY UK



THIS ALERT IS ADDRESSED TO ALL COUNTRIES AND INSTITUTIONS SUBSCRIBED

TO THE SERVICES OF INGV CTSP IN ITS MONITORING AREA



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 - 0710Z 17 NOV 2015

COORDINATES - 38.74 NORTH 20.52 EAST

DEPTH - 10 KM

LOCATION - COSTA_GRECA_IONICA_(GRECIA)

MAGNITUDE - 6.5



ALERT LEVEL IS ASSIGNED ACCORDING TO THE ABOVE ESTIMATIONS OF

EARTHQUAKE PARAMETERS AND BASED ON ICG/NEAMTWS DECISION MATRIX



EVALUATION OF TSUNAMI ADVISORY

IT IS NOT KNOWN THAT A TSUNAMI WAS GENERATED. THIS WATCH IS BASED ONLY ON

THE EARTHQUAKE EVALUATION. AN EARTHQUAKE OF THIS SIZE HAS THE POTENTIAL

TO GENERATE A TSUNAMI THAT CAN STRIKE COASTLINES WITH A WAVE HEIGHT LESS

THAN 0.5M AND/OR CAUSE A TSUNAMI RUN-UP LESS THAN 1M. AUTHORITIES SHOULD

TAKE APPROPRIATE ACTION IN RESPONSE TO THIS POSSIBILITY. THIS CENTER WILL

MONITOR SEA LEVEL DATA FROM GAUGES NEAR THE EARTHQUAKE TO DETERMINE IF A

TSUNAMI WAS GENERATED AND ESTIMATE THE SEVERITY OF THE THREAT. 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.



EVALUATION OF TSUNAMI INFORMATION

BASED ON HISTORICAL EARTHQUAKE AND TSUNAMI MODELLING THERE IS NO

THREAT THAT A TSUNAMI HAS BEEN GENERATED THAT CAN CAUSE DAMAGE OR

MAJOR EFFECT IN THE REGION. THIS MESSAGE IS FOR INFORMATION ONLY.



HOWEVER, AT SOME COASTS, PARTICULARLY THOSE NEAR THE EPICENTER, HIGHER

TSUNAMIS MAY ARRIVE THAN OUR ESTIMATION.

AUTHORITIES SHOULD BE AWARE OF THIS POSSIBILITY.



ESTIMATED INITIAL TSUNAMI WAVE ARRIVAL TIMES AT FORECAST POINTS WITHIN

THE WATCH AREA ARE 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, FORECAST POINT COORDINATES, ARRIVAL TIME, ALERT LEVEL

(ADVISORY, WATCH)

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



GREECE - CEPHALONNIA_ARGOSTOLI 38.18N 20.45E 0734Z 17 NOV ADVISORY

GREECE - IGOUMENITSA 39.48N 20.22E 0743Z 17 NOV ADVISORY



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.



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