BULLETIN
PUBLIC TSUNAMI MESSAGE NUMBER 4
NWS NATIONAL TSUNAMI WARNING CENTER PALMER AK
244 PM AKDT MON JUN 23 2014
UPDATES IN THIS MESSAGE INCLUDE MODIFIED ALERT AREAS.
UPDATES IN THIS MESSAGE INCLUDE NEW OBSERVATIONS.
UPDATES IN THIS MESSAGE INCLUDE REVISED FORECAST INFORMATION.
...THE TSUNAMI ADVISORY REMAINS IN EFFECT...
WARNINGS/ADVISORIES/WATCHES - UPDATED
-------------------------------------
TSUNAMI ADVISORY IN EFFECT FOR...
* THE COASTAL AREAS OF ALASKA FROM UNIMAK PASS ALASKA /WHICH
IS LOCATED 80 MILES NE OF UNALASKA/ TO NIKOLSKI ALASKA
* THE COASTAL AREAS OF ALASKA FROM NIKOLSKI ALASKA TO ATTU
ALASKA
* FOR OTHER US AND CANADIAN PACIFIC COASTS IN NORTH AMERICA -
THIS IS FOR INFORMATION ONLY.
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 AND/OR OBSERVATIONS OF TSUNAMI ACTIVITY
-------------------------------------------------
FORECAST FORECAST FORECAST OBSERVED
START OF TSUNAMI MAX TSUNAMI MAX TSUNAMI
SITE OF TSUNAMI DURATION HEIGHT HEIGHT
---- ---------- -------- ------------- -------
* ALASKA
UNALASKA 1443 AKDT JUN 23 Less than 1FT
SAINT PAUL 1504 AKDT JUN 23 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.
OBSERVED MAX TSUNAMI HEIGHT IS THE HIGHEST RECORDED WATER LEVEL
ABOVE THE TIDE LEVEL UP TO THIS POINT.
ADDITIONAL OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
-----------------------------------------------------
TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- --------------- --------------
AMCHITKA AK 2129 UTC 06-23 00.6FT
SHEMYA AK 2152 UTC 06-23 00.2FT
ADAK AK 2202 UTC 06-23 00.2FT
HEIGHT - OBSERVED MAX TSUNAMI HEIGHT IS THE WATER LEVEL ABOVE THE
TIDE LEVEL AT THE TIME OF MEASUREMENT.
PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
* MAGNITUDE 8.0
* ORIGIN TIME 1253 AKDT JUN 23 2014
1353 PDT JUN 23 2014
2053 UTC JUN 23 2014
* COORDINATES 51.8 NORTH 178.7 EAST
* DEPTH 68 MILES
* LOCATION 25 MILES NW OF AMCHITKA ALASKA
195 MILES W OF ADAK ALASKA
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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