Caribbean Training Course in Seismology and Caribbean Training Course in Seismology and Tsunami WarningsTsunami Warnings

June 25-30, 2007, St. Augustine, TrinidadJune 25-30, 2007, St. Augustine, Trinidad

TWC Alerting: Message Content and TWC Alerting: Message Content and DisseminationDissemination

Dr. Charles McCreery, DirectorDr. Charles McCreery, Director NOAA Richard H. Hagemeyer Pacific Tsunami Warning CenterNOAA Richard H. Hagemeyer Pacific Tsunami Warning Center

Ewa Beach, Hawaii USAEwa Beach, Hawaii USA

Earth-quakeDepth

EarthquakeLocation

EarthquakeMagnitude

(Mw)

Description of TsunamiPotential

ProductType

< 100 km Under or very near the sea

6.0 to 7.0Caribbean

Very small potential for a destructive local tsunami

Tsunami Information Statement

6.5 to 7.8Atlantic

Very small potential for a destructive ocean-wide tsunami

Tsunami InformationStatement

7.1 to 7.5Caribbean

Potential for a destructive local tsunami Local Tsunami Watch Message

7.6 to 7.8Caribbean

Potential for a destructive regional tsunami Regional Tsunami Watch Message

≥ 7.9Caribbean& Atlantic

Potential for a destructive ocean-wide tsunami Ocean-wide Tsunami Watch Message

Inland ≥ 6.0 Carib≥ 6.5 Atlan

No tsunami potential Tsunami Information Statement

≥ 100 km All Locations ≥ 6.0 Carib≥ 6.5 Atlan

No tsunami potential Tsunami Information Statement

PROPOSED CRITERIA FOR CARTWS PRODUCTS

WMO/GTS AND AWIPS IDsFOR CARTWS PRODUCTS

WMO/GTS ID AWIPS ID Product Type

WECA41 PHEB TSUCAX Tsunami Watch Message

WECA43 PHEB TIBCAX Tsunami Information Statement

TSUNAMI STATEMENT NUMBER 1NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI0938 UTC MON JUN 25 2007

THIS STATEMENT APPLIES TO COUNTRIES WITHIN AND BORDERING THECARIBBEAN SEA...EXCEPT FOR PUERTO RICO AND THE VIRGIN ISLANDS.

... TSUNAMI INFORMATION STATEMENT ...

THIS MESSAGE IS FOR INFORMATION ONLY.

THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLYNATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKEDECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA ANDANY ACTIONS TO BE TAKEN IN RESPONSE.

TSUNAMI INFORMATION STATEMENT

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 2134Z 24 JUN 2007 COORDINATES - 15.2 NORTH 61.0 WEST LOCATION - LEEWARD ISLANDS MAGNITUDE - 6.3

EVALUATION

A DESTRUCTIVE WIDESPREAD TSUNAMI THREAT DOES NOT EXIST BASED ON HISTORICAL EARTHQUAKE AND TSUNAMI DATA. HOWEVER - THERE IS THE SMALL POSSIBILITY OF A LOCAL TSUNAMI THAT COULD AFFECT COASTS LOCATED USUALLY NO MORE THAN A HUNDRED KILOMETERS FROM THE EARTHQUAKE EPICENTER. AUTHORITIES IN THE REGION NEAR THE EPICENTER SHOULD BE MADE AWARE OF THIS POSSIBILITY.

THIS WILL BE THE ONLY PRODUCT ISSUED BY THE PACIFIC TSUNAMIWARNING CENTER FOR THIS EVENT UNLESS ADDITIONAL INFORMATIONBECOMES AVAILABLE.

TSUNAMI INFORMATION STATEMENT

TSUNAMI MESSAGE NUMBER 1NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI0956 UTC MON JUN 25 2007

THIS MESSAGE APPLIES TO COUNTRIES WITHIN AND BORDERING THECARIBBEAN SEA...EXCEPT FOR PUERTO RICO AND THE VIRGIN ISLANDS.

... A REGIONAL TSUNAMI WATCH IS IN EFFECT ...

A TSUNAMI WATCH IS IN EFFECT FOR

BARBADOS / MARTINIQUE / SAINT LUCIA / DOMINICA / ST VINCENT / GUADELOUPE / BARBUDA / ANTIGUA / MONTSERRAT / GRENADA / TRINIDAD TOBAGO / ANGUILLA / SAINT MARTIN / SAINT KITTS / SAINT MAARTEN / DOMINICAN REP / BONAIRE / VENEZUELA / CURACAO / ARUBA / GUYANA / SURINAME

FOR OTHER AREAS OF THE CARIBBEAN COVERED BY THIS MESSAGE...IT ISFOR INFORMATION ONLY AT THIS TIME.

THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLYNATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKEDECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA ANDANY ACTIONS TO BE TAKEN IN RESPONSE.

REGIONAL TSUNAMI WATCH - INITIAL

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 2134Z 24 JUN 2007 COORDINATES - 15.2 NORTH 61.0 WEST LOCATION - LEEWARD ISLANDS MAGNITUDE - 7.7

EVALUATION

EARTHQUAKES OF THIS SIZE HAVE THE POTENTIAL TO GENERATE A DESTRUCTIVE LOCAL TSUNAMI AND SOMETIMES A DESTRUCTIVE REGIONAL TSUNAMI ALONG COASTS LOCATED USUALLY NO MORE THAN A THOUSAND KILOMETERS FROM THE EARTHQUAKE EPICENTER. AREAS FURTHER FROM THE EPICENTER COULD EXPERIENCE SMALL SEA LEVEL CHANGES AND STRONG OR UNUSUAL COASTAL CURRENTS. HOWEVER - IT IS NOT KNOWN THAT A TSUNAMI WAS GENERATED. THIS WATCH IS BASED ONLY ON THE EARTHQUAKE EVALUATION. AUTHORITIES IN THE REGION SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THIS POSSIBILITY. THE WATCH WILL NOT EXPAND TO OTHER AREAS OF THE CARIBBEAN UNLESS ADDITIONAL DATA ARE RECEIVED TO WARRANT SUCH AN EXPANSION.

DUE TO ONLY LIMITED SEA LEVEL DATA FROM THE REGION IT MAY NOT BE POSSIBLE FOR THIS CENTER TO RAPIDLY CONFIRM NOR EVALUATE THE STRENGTH OF A TSUNAMI IF ONE HAS BEEN GENERATED.

REGIONAL TSUNAMI WATCH - INITIAL

ESTIMATED INITIAL TSUNAMI WAVE ARRIVAL TIMES AT FORECAST POINTSWITHIN THE WARNING AND WATCH AREAS ARE GIVEN BELOW. ACTUALARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THELARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEENSUCCESSIVE WAVES CAN BE FIVE MINUTES TO ONE HOUR.

LOCATION FORECAST POINT COORDINATES ARRIVAL TIME -------------------------------- ------------ ------------ BARBADOS BRIDGETOWN 13.1N 59.6W 2157Z 24 JUN MARTINIQUE FORT-DE-FRANCE 14.6N 61.1W 2157Z 24 JUN SAINT LUCIA CASTRIES 14.0N 61.0W 2159Z 24 JUN DOMINICA ROSEAU 15.3N 61.4W 2201Z 24 JUN ST VINCENT KINGSTOWN 13.1N 61.2W 2209Z 24 JUN GUADELOUPE BASSE-TERRE 16.0N 61.7W 2209Z 24 JUN BARBUDA PALMETTO POINT 17.6N 61.9W 2212Z 24 JUN ANTIGUA SAINT JOHNS 17.1N 61.9W 2212Z 24 JUN MONTSERRAT PLYMOUTH 16.7N 62.2W 2219Z 24 JUN GRENADA SAINT GEORGES 12.0N 61.8W 2225Z 24 JUN TRINIDAD TOBAGO PIRATES BAY 11.3N 60.6W 2226Z 24 JUN PORT-OF-SPAIN 10.6N 61.5W 2312Z 24 JUN ANGUILLA THE VALLEY 18.3N 63.1W 2227Z 24 JUN SAINT MARTIN BAIE BLANCHE 18.1N 63.0W 2228Z 24 JUN

REGIONAL TSUNAMI WATCH - INITIAL

PROPOSED CARTWS FORECAST POINTS

SAINT KITTS BASSETERRE 17.3N 62.7W 2229Z 24 JUN SAINT MAARTEN SIMPSON BAAI 18.0N 63.1W 2231Z 24 JUN DOMINICAN REP CABO ENGANO 18.5N 68.0W 2305Z 24 JUN PUERTO PLATA 19.8N 70.7W 2318Z 24 JUN SANTO DOMINGO 18.0N 70.0W 2332Z 24 JUN BONAIRE ONIMA 12.3N 68.3W 2318Z 24 JUN VENEZUELA MAIQUETIA 11.0N 67.0W 2324Z 24 JUN PORLAMAR 10.9N 63.8W 2328Z 24 JUN CUMANA 10.5N 64.2W 2358Z 24 JUN PUNTO FIJO 11.5N 70.5W 0042Z 25 JUN GOLFO VENEZUELA 11.4N 71.2W 0055Z 25 JUN CURACAO WILLEMSTAD 12.1N 68.9W 2326Z 24 JUN ARUBA ORANJESTAD 12.5N 70.0W 2340Z 24 JUN GUYANA GEORGETOWN 6.8N 58.2W 0038Z 25 JUN SURINAME PARAMARIBO 6.0N 55.5W 0047Z 25 JUN

THE PACIFIC TSUNAMI WARNING CENTER WILL CONTINUE TO MONITOR THESITUATION. FUTURE MESSAGES WILL BE ISSUED AT LEAST ONCE AN HOURTO PROVIDE SEA LEVEL READINGS OR OTHER REPORTS OF TSUNAMIWAVE ACTIVITY OR TO FURTHER EVALUATE THE SITUATION UNTIL THE THREATHAS PASSED.

REGIONAL TSUNAMI WATCH - INITIAL

SAINT KITTS BASSETERRE 17.3N 62.7W 2229Z 24 JUN SAINT MAARTEN SIMPSON BAAI 18.0N 63.1W 2231Z 24 JUN DOMINICAN REP CABO ENGANO 18.5N 68.0W 2305Z 24 JUN PUERTO PLATA 19.8N 70.7W 2318Z 24 JUN SANTO DOMINGO 18.0N 70.0W 2332Z 24 JUN BONAIRE ONIMA 12.3N 68.3W 2318Z 24 JUN VENEZUELA MAIQUETIA 11.0N 67.0W 2324Z 24 JUN PORLAMAR 10.9N 63.8W 2328Z 24 JUN CUMANA 10.5N 64.2W 2358Z 24 JUN PUNTO FIJO 11.5N 70.5W 0042Z 25 JUN GOLFO VENEZUELA 11.4N 71.2W 0055Z 25 JUN CURACAO WILLEMSTAD 12.1N 68.9W 2326Z 24 JUN ARUBA ORANJESTAD 12.5N 70.0W 2340Z 24 JUN GUYANA GEORGETOWN 6.8N 58.2W 0038Z 25 JUN SURINAME PARAMARIBO 6.0N 55.5W 0047Z 25 JUN

THIS WILL BE THE FINAL PRODUCT ISSUED BY THE PACIFIC TSUNAMIWARNING CENTER FOR THIS EVENT UNLESS ADDITIONAL INFORMATIONBECOMES AVAILABLE.

REGIONAL TSUNAMI WATCH - FINAL

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER ------------------- ----- ------ ----- --------------- ----- CALDERA CL 27.1S 70.8W 2205Z 0.44M / 1.5FT 54MIN ANTOFAGASTA CL 23.6S 70.4W 2251Z 0.25M / 0.8FT 24MIN IQUIQUE CL 20.2S 70.2W 2245Z 0.23M / 0.7FT 34MIN

LAT - LATITUDE (N-NORTH, S-SOUTH) LON - LONGITUDE (E-EAST, W-WEST) TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME) AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL. IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT. VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT). PER - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.

REGIONAL TSUNAMI WATCH – SUPPLEMENTAL

INCLUDES SEA LEVEL READINGS

PTWC Sea Level Monitor Display

PTWC Sea Level Data Processing

BAHAMAS TURKS AND CAICOS BERMUDA CUBA JAMAICA HAITI DOMINICAN REPUB PUERTO RICO US VIRGIN IS BRITISH VIRGIN IS ANGUILLA SAINT MARTIN SAINT MAARTEN SAINT KITTS

BARBUDA ANTIGUA MONTSERRAT GUADELOUPE DOMINICA MARTINIQUE SAINT LUCIA BARBADOS SAINT VINCENT GRENADA TRINIDAD & TOBAGO VENEZUELA BONAIRE CURACAO

ARUBA BRAZIL FRENCH GUIANA SURINAME GUYANA COLOMBIA PANAMA COSTA RICA NICARAGUA HONDURAS GUATEMALA BELIZE MEXICO

CARTWS FOCAL POINT DESIGNATIONS

RED: FOCAL POINT INFORMATION RECEIVED(15 GTS 14 AFTN 44 FAX 47 EMAIL 65 PHONES)

BLACK: NO FOCAL POINT INFORMATION YET

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