VOLCANO MADNESS: [Geology2] TSUNAMI MESSAGE NUMBER 1 (9/07/17)

Thursday, September 7, 2017

[Geology2] TSUNAMI MESSAGE NUMBER 1 (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 ***** PRELIMINARY EARTHQUAKE PARAMETERS --------------------------------- * MAGNITUDE 8.0 * 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 8.0 OCCURRED OFF THE COAST OF CHIAPAS, MEXICO AT 0449 UTC ON FRIDAY SEPTEMBER 8 2017. * BASED ON THE PRELIMINARY EARTHQUAKE PARAMETERS... WIDESPREAD HAZARDOUS TSUNAMI WAVES ARE POSSIBLE. TSUNAMI THREAT FORECAST ----------------------- * HAZARDOUS TSUNAMI WAVES FROM THIS EARTHQUAKE ARE POSSIBLE WITHIN THE NEXT THREE HOURS ALONG SOME COASTS OF MEXICO... GUATEMALA... EL SALVADOR... COSTA RICA... NICARAGUA... PANAMA... HONDURAS AND ECUADOR 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 WITH A POTENTIAL TSUNAMI THREAT. 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) ------------------------------------------------------------ SALINA CRUZ MEXICO 16.5N 95.2W 0540 09/08 PUERTO MADERO MEXICO 14.8N 92.5W 0543 09/08 SIPICATE GUATEMALA 13.9N 91.2W 0548 09/08 ACAPULCO MEXICO 16.9N 99.9W 0552 09/08 LAZARO CARDENAS MEXICO 17.9N 102.2W 0613 09/08 ACAJUTLA EL SALVADOR 13.6N 89.8W 0618 09/08 CABO SAN ELENA COSTA RICA 10.9N 86.0W 0618 09/08 CORINTO NICARAGUA 12.5N 87.2W 0630 09/08 PUERTO SANDINO NICARAGUA 12.2N 86.8W 0631 09/08 MANZANILLO MEXICO 19.1N 104.3W 0635 09/08 SAN JUAN DL SUR NICARAGUA 11.2N 85.9W 0640 09/08 PUERTO QUEPOS COSTA RICA 9.4N 84.2W 0642 09/08 ISLA DEL COCO COSTA RICA 5.5N 87.1W 0642 09/08 CABO MATAPALO COSTA RICA 8.4N 83.3W 0646 09/08 PUNTA BURICA PANAMA 8.0N 82.9W 0653 09/08 AMAPALA HONDURAS 13.2N 87.6W 0704 09/08 PUERTO VALLARTA MEXICO 20.6N 105.3W 0712 09/08 SOCORRO MEXICO 18.8N 111.0W 0729 09/08 SAN BLAS MEXICO 21.5N 105.3W 0732 09/08 MAZATLAN MEXICO 23.2N 106.4W 0733 09/08 CABO SAN LUCAS MEXICO 22.8N 110.0W 0735 09/08 PUNTA MALA PANAMA 7.5N 80.0W 0745 09/08 BALTRA ISLAND ECUADOR 0.5S 90.3W 0752 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.