BULLETIN
PUBLIC TSUNAMI MESSAGE NUMBER 4
NWS NATIONAL TSUNAMI WARNING CENTER PALMER AK
643 PM PDT WED SEP 16 2015
UPDATES
-------
* UPDATED OBSERVATIONS
* REVISED ALERT AREAS
* REVISED FORECAST INFORMATION
TSUNAMI FORECASTS IN THE ADVISORY REGION EXCEED A FOOT
IN SOME LOCATIONS.
..A TSUNAMI ADVISORY IS NOW IN EFFECT...
WARNINGS/ADVISORIES/WATCHES - UPDATED
-------------------------------------
TSUNAMI ADVISORY IN EFFECT FOR...
* THE COASTAL AREAS OF CALIFORNIA FROM SAN ONOFRE STATE BEACH
CALIFORNIA /WHICH IS LOCATED 45 MILES SE OF L.A./ TO RAGGED
POINT CALIFORNIA /WHICH IS LOCATED 50 MILES NW OF SAN LUIS
OBISPO/
FOR OTHER US AND CANADIAN PACIFIC COASTS IN NORTH AMERICA -
THERE IS NO TSUNAMI THREAT.
IMPACTS FOR TSUNAMI ADVISORY AREAS
----------------------------------
* A TSUNAMI CAPABLE OF PRODUCING STRONG CURRENTS OR WAVES DANGEROUS
TO PERSONS IN OR VERY NEAR THE WATER IS EXPECTED.
* CURRENTS MAY BE HAZARDOUS TO SWIMMERS... BOATS... AND COASTAL
STRUCTURES AND MAY CONTINUE FOR MANY HOURS AFTER THE TSUNAMI
ARRIVAL.
* THE FIRST WAVE MAY NOT BE THE LARGEST.
RECOMMENDED ACTIONS - UPDATED
-----------------------------
* IF YOU ARE IN AN ADVISORY AREA - MOVE OFF THE BEACH AND OUT OF
HARBORS AND MARINAS. WIDESPREAD INUNDATION OF LAND IS NOT
EXPECTED FOR ADVISORY AREAS.
* BE ALERT TO INSTRUCTIONS FROM YOUR LOCAL EMERGENCY OFFICIALS.
* DO NOT GO TO THE COAST TO OBSERVE THE TSUNAMI.
* DO NOT RETURN TO THE COAST UNTIL LOCAL EMERGENCY OFFICIALS
INDICATE IT IS SAFE TO DO SO.
FORECASTS OF TSUNAMI ACTIVITY
-----------------------------
FORECAST FORECAST FORECAST
START OF TSUNAMI MAX TSUNAMI
SITE OF TSUNAMI DURATION HEIGHT
---- ---------- -------- -------------
* CALIFORNIA
NEWPORT BEACH 0446 PDT SEP 17 LESS THAN 1FT
LOS ANGELES HARB 0447 PDT SEP 17 LESS THAN 1FT
SANTA BARBARA 0506 PDT SEP 17 LESS THAN 1FT
PORT SAN LUIS 0510 PDT SEP 17 LESS THAN 1FT
FORECAST MAX TSUNAMI HEIGHT IS THE HIGHEST EXPECTED WATER LEVEL
ABOVE THE TIDE.
FORECAST TSUNAMI DURATION IS THE APPROXIMATE LENGTH OF TIME WHICH
THE TSUNAMI MAY PRODUCE DANGEROUS CURRENTS AND WAVE ACTIVITY.
OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- ------------------- --------------
VALPARAISO CHILE 0544 PM PDT SEP 16 6.1FT
COQUIMBO CHILE 0525 PM PDT SEP 16 15.3FT
CALDERA CHILE 0613 PM PDT SEP 16 2.0FT
JUAN_FERNANDEZ CHILE 0523 PM PDT SEP 16 3.2FT
ANTOFAGASTA CHILE 0600 PM PDT SEP 16 1.3FT
TALCAHUANO CHILE 0544 PM PDT SEP 16 1.5FT
CORRAL CHILE 0608 PM PDT SEP 16 0.9FT
QUIRIQUINA CHILE 0600 PM PDT SEP 16 3.4FT
CONSTITUCION CHILE 0550 PM PDT SEP 16 2.2FT
HUASCO CHILE 0601 PM PDT SEP 16 2.4FT
PAPOSO CHILE 0451 PM PDT SEP 16 0.6FT
TALTAL CHILE 0555 PM PDT SEP 16 0.8FT
QUINTERO CHILE 0504 PM PDT SEP 16 5.8FT
SAN ANTONIO CHILE 0528 PM PDT SEP 16 3.4FT
HEIGHT - OBSERVED MAX TSUNAMI HEIGHT IS THE WATER LEVEL ABOVE THE
TIDE LEVEL AT THE TIME OF MEASUREMENT.
PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
* MAGNITUDE 8.3
* ORIGIN TIME 1455 AKDT SEP 16 2015
1555 PDT SEP 16 2015
2255 UTC SEP 16 2015
* COORDINATES 31.5 SOUTH 72.0 WEST
* DEPTH 6 MILES
* LOCATION OFF COAST OF CENTRAL CHILE
NEXT UPDATE AND ADDITIONAL INFORMATION
--------------------------------------
* THIS MESSAGE WILL BE UPDATED WITHIN 60 MINUTES.
* REFER TO THE INTERNET SITE NTWC.ARH.NOAA.GOV FOR MORE
INFORMATION.
* PACIFIC COASTAL RESIDENTS OUTSIDE CALIFORNIA... OREGON...
WASHINGTON... BRITISH COLUMBIA AND ALASKA SHOULD REFER TO THE
PACIFIC TSUNAMI WARNING CENTER MESSAGES AT PTWC.WEATHER.GOV.
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