Thursday, September 7, 2017

[Geology2] TSUNAMI MESSAGE NUMBER 2 (9/07/17)



...PTWC TSUNAMI THREAT MESSAGE...      **** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****     THIS MESSAGE IS ISSUED FOR INFORMATION ONLY IN SUPPORT OF THE   UNESCO/IOC PACIFIC TSUNAMI WARNING AND MITIGATION SYSTEM AND IS   MEANT FOR NATIONAL AUTHORITIES IN EACH COUNTRY OF THAT SYSTEM.     NATIONAL AUTHORITIES WILL DETERMINE THE APPROPRIATE LEVEL OF   ALERT FOR EACH COUNTRY AND MAY ISSUE ADDITIONAL OR MORE REFINED   INFORMATION.    **** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****    THE TSUNAMI FORECAST IS UPDATED IN THIS MESSAGE.      PRELIMINARY EARTHQUAKE PARAMETERS  ---------------------------------      * MAGNITUDE      8.2    * ORIGIN TIME    0449 UTC SEP 8 2017    * COORDINATES    14.9 NORTH  94.0 WEST    * DEPTH          33 KM / 20 MILES    * LOCATION       OFF THE COAST OF CHIAPAS  MEXICO      EVALUATION  ----------      * AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 8.2 OCCURRED      OFF THE COAST OF CHIAPAS, MEXICO AT 0449 UTC ON FRIDAY      SEPTEMBER 8 2017.      * BASED ON ALL AVAILABLE DATA... HAZARDOUS TSUNAMI WAVES ARE      FORECAST FOR SOME COASTS.      TSUNAMI THREAT FORECAST...UPDATED  ---------------------------------      * TSUNAMI WAVES REACHING MORE THAN 3 METERS ABOVE THE TIDE      LEVEL ARE POSSIBLE ALONG SOME COASTS OF          MEXICO.        * TSUNAMI WAVES REACHING 0.3 TO 1 METERS ABOVE THE TIDE LEVEL      ARE POSSIBLE FOR SOME COASTS OF          COOK ISLANDS... ECUADOR... FRENCH POLYNESIA... GUATEMALA...        AND KIRIBATI.        * TSUNAMI WAVES ARE FORECAST TO BE LESS THAN 0.3 METERS ABOVE      THE TIDE LEVEL FOR THE COASTS OF          COLOMBIA... COSTA RICA... EL SALVADOR... HAWAII...        HONDURAS... JARVIS ISLAND... NICARAGUA... NORTHWESTERN        HAWAIIAN ISLANDS... PALMYRA ISLAND... PANAMA... AND PERU.        * ACTUAL AMPLITUDES AT THE COAST MAY VARY FROM FORECAST      AMPLITUDES DUE TO UNCERTAINTIES IN THE FORECAST AND LOCAL      FEATURES. IN PARTICULAR MAXIMUM TSUNAMI AMPLITUDES ON ATOLLS      AND AT LOCATIONS WITH FRINGING OR BARRIER REEFS WILL LIKELY      BE MUCH SMALLER THAN THE FORECAST INDICATES.      * FOR OTHER AREAS COVERED BY THIS PRODUCT A FORECAST HAS NOT      YET BEEN COMPUTED. THE FORECAST WILL BE EXPANDED IF      NECESSARY IN SUBSEQUENT PRODUCTS.      RECOMMENDED ACTIONS  -------------------      * GOVERNMENT AGENCIES RESPONSIBLE FOR THREATENED COASTAL AREAS      SHOULD TAKE ACTION TO INFORM AND INSTRUCT ANY COASTAL      POPULATIONS AT RISK IN ACCORDANCE WITH THEIR OWN      EVALUATION... PROCEDURES AND THE LEVEL OF THREAT.      * PERSONS LOCATED IN THREATENED COASTAL AREAS SHOULD STAY ALERT      FOR INFORMATION AND FOLLOW INSTRUCTIONS FROM NATIONAL AND      LOCAL AUTHORITIES.      ESTIMATED TIMES OF ARRIVAL  --------------------------      * ESTIMATED TIMES OF ARRIVAL -ETA- OF THE INITIAL TSUNAMI WAVE      FOR PLACES WITHIN THREATENED REGIONS 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      WAVES CAN BE FIVE MINUTES TO ONE HOUR.        LOCATION         REGION             COORDINATES    ETA(UTC)      ------------------------------------------------------------      PUERTO MADERO    MEXICO            14.8N  92.5W   0548 09/08      SALINA CRUZ      MEXICO            16.5N  95.2W   0551 09/08      ACAPULCO         MEXICO            16.9N  99.9W   0552 09/08      SIPICATE         GUATEMALA         13.9N  91.2W   0604 09/08      LAZARO CARDENAS  MEXICO            17.9N 102.2W   0619 09/08      BALTRA ISLAND    ECUADOR            0.5S  90.3W   0804 09/08      HIVA OA          FRENCH POLYNESIA  10.0S 139.0W   1248 09/08      CHRISTMAS ISLAN  KIRIBATI           2.0N 157.5W   1422 09/08      MALDEN ISLAND    KIRIBATI           3.9S 154.9W   1426 09/08      FLINT ISLAND     KIRIBATI          11.4S 151.8W   1426 09/08      PAPEETE          FRENCH POLYNESIA  17.5S 149.6W   1450 09/08      PENRYN ISLAND    COOK ISLANDS       8.9S 157.8W   1505 09/08      RAROTONGA        COOK ISLANDS      21.2S 159.8W   1609 09/08      PUKAPUKA ISLAND  COOK ISLANDS      10.8S 165.9W   1619 09/08      POTENTIAL IMPACTS  -----------------      * A TSUNAMI IS A SERIES OF WAVES. THE TIME BETWEEN WAVE CRESTS      CAN VARY FROM 5 MINUTES TO AN HOUR. THE HAZARD MAY PERSIST      FOR MANY HOURS OR LONGER AFTER THE INITIAL WAVE.      * IMPACTS CAN VARY SIGNIFICANTLY FROM ONE SECTION OF COAST TO      THE NEXT DUE TO LOCAL BATHYMETRY AND THE SHAPE AND ELEVATION      OF THE SHORELINE.      * IMPACTS CAN ALSO VARY DEPENDING UPON THE STATE OF THE TIDE AT      THE TIME OF THE MAXIMUM TSUNAMI WAVES.      * PERSONS CAUGHT IN THE WATER OF A TSUNAMI MAY DROWN... BE      CRUSHED BY DEBRIS IN THE WATER... OR BE SWEPT OUT TO SEA.      NEXT UPDATE AND ADDITIONAL INFORMATION  --------------------------------------      * THE NEXT MESSAGE WILL BE ISSUED IN ONE HOUR... OR SOONER IF      THE SITUATION WARRANTS.      * AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.      GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT      EARTHQUAKE.USGS.GOV/EARTHQUAKES -ALL LOWER CASE-.      * FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND AT      PTWC.WEATHER.GOV AND AT WWW.TSUNAMI.GOV.      * COASTAL REGIONS OF HAWAII... AMERICAN SAMOA... GUAM... AND      CNMI SHOULD REFER TO PACIFIC TSUNAMI WARNING CENTER MESSAGES      SPECIFICALLY FOR THOSE PLACES THAT CAN BE FOUND AT      PTWC.WEATHER.GOV.      * COASTAL REGIONS OF CALIFORNIA... OREGON... WASHINGTON...      BRITISH COLUMBIA AND ALASKA SHOULD ONLY REFER TO U.S.      NATIONAL TSUNAMI WARNING CENTER MESSAGES THAT CAN BE FOUND      AT NTWC.ARH.NOAA.GOV.


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Posted by: Kim Noyes <kimnoyes@gmail.com>



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