ZCZC
WEPA40 PHEB 191907
TSUPAC
TSUNAMI MESSAGE NUMBER 3
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
1907 UTC MON SEP 19 2022
...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 7.6
* ORIGIN TIME 1805 UTC SEP 19 2022
* COORDINATES 18.2 NORTH 103.4 WEST
* DEPTH 10 KM / 6 MILES
* LOCATION NEAR THE COAST OF MICHOACAN MEXICO
EVALUATION
----------
* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.6 OCCURRED
NEAR THE COAST OF MICHOACAN, MEXICO AT 1805 UTC ON MONDAY
SEPTEMBER 19 2022.
* TSUNAMI WAVES HAVE BEEN OBSERVED.
* BASED ON ALL AVAILABLE DATA... HAZARDOUS TSUNAMI WAVES ARE
FORECAST FOR SOME COASTS.
TSUNAMI THREAT FORECAST...UPDATED
---------------------------------
* TSUNAMI WAVES REACHING 1 TO 3 METERS ABOVE THE TIDE LEVEL ARE
POSSIBLE ALONG SOME COASTS OF
MEXICO.
* TSUNAMI WAVES ARE FORECAST TO BE LESS THAN 0.3 METERS ABOVE
THE TIDE LEVEL FOR THE COASTS OF
AMERICAN SAMOA... ANTARCTICA... AUSTRALIA... CHILE...
CHUUK... COLOMBIA... COOK ISLANDS... COSTA RICA...
ECUADOR... EL SALVADOR... FIJI... FRENCH POLYNESIA...
GUAM... GUATEMALA... HAWAII... HONDURAS... HOWLAND AND
BAKER... INDONESIA... JAPAN... JARVIS ISLAND... JOHNSTON
ATOLL... KERMADEC ISLANDS... KIRIBATI... KOSRAE...
MARSHALL ISLANDS... MIDWAY ISLAND... NAURU... NEW
CALEDONIA... NEW ZEALAND... NICARAGUA... NIUE... NORTHERN
MARIANAS... NORTHWESTERN HAWAIIAN ISLANDS... PALAU...
PALMYRA ISLAND... PANAMA... PAPUA NEW GUINEA... PERU...
PHILIPPINES... PITCAIRN ISLANDS... POHNPEI... RUSSIA...
SAMOA... SOLOMON ISLANDS... TAIWAN... TOKELAU... TONGA...
TUVALU... VANUATU... WAKE ISLAND... WALLIS AND FUTUNA...
AND YAP.
* 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)
------------------------------------------------------------
LAZARO CARDENAS MEXICO 17.9N 102.2W 1827 09/19
MANZANILLO MEXICO 19.1N 104.3W 1827 09/19
ACAPULCO MEXICO 16.9N 99.9W 1849 09/19
PUERTO VALLARTA MEXICO 20.6N 105.2W 1905 09/19
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.
TSUNAMI OBSERVATIONS
--------------------
* THE FOLLOWING ARE TSUNAMI WAVE OBSERVATIONS FROM COASTAL
AND/OR DEEP-OCEAN SEA LEVEL GAUGES AT THE INDICATED
LOCATIONS. THE MAXIMUM TSUNAMI HEIGHT IS MEASURED WITH
RESPECT TO THE NORMAL TIDE LEVEL.
GAUGE TIME OF MAXIMUM WAVE
COORDINATES MEASURE TSUNAMI PERIOD
GAUGE LOCATION LAT LON (UTC) HEIGHT (MIN)
-------------------------------------------------------------
ZIHUATANEJO MX 17.6N 101.6W 1832 0.32M/ 1.1FT 44
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.
* FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND 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
WWW.TSUNAMI.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 WWW.TSUNAMI.GOV.
$$
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