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Tsunami Warning Downgraded

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U.S. National Tsunami Warning Center
/

TSUNAMI WARNING DOWNGRADED TO ADVISORY

UPDATES
-------
 * Updated observations
 * Revised alert areas


...A TSUNAMI ADVISORY IS NOW IN EFFECT...



Tsunami Advisory in Effect for;

 * SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
   Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
   Pass, Alaska (80 miles NE of Unalaska)


For other US and Canadian Pacific coasts in North America, 
there is no tsunami threat.


FORECASTS OF TSUNAMI ACTIVITY
-----------------------------
 * A tsunami has been generated.  The first waves are forecasted to
   arrive at the following locations and specified times.

 * Forecast tsunami duration is the approximate length of time which
   the tsunami may produce dangerous currents and waves.

 * Forecast max tsunami height is the highest expected water level
   above the tide.

 * Forecasts are not provided for sites which have been impacted
   more than an hour prior to the time of this message.

                 FORECAST         FORECAST  FORECAST
                 START            TSUNAMI   MAX TSUNAMI
SITE             OF TSUNAMI       DURATION  HEIGHT
----             ----------       --------  -------------

 * Alaska
Cold Bay         1445 AKDT Oct 19           less than 1ft 
Kodiak           1450 AKDT Oct 19           less than 1ft 


OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
 * Observed max tsunami height is the highest recorded water level
   above the tide level up to the time of this message.

                                  TIME               OBSERVED MAX
 SITE                         OF MEASUREMENT         TSUNAMI HEIGHT
 ---------------------------- ----------------       --------------
 Sand Point  Alaska           1525  PDT Oct 19           2.0ft
 King Cove  Alaska            1553  PDT Oct 19           1.5ft


PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

 * Magnitude      7.5
 * Origin Time    1255 AKDT Oct 19 2020
                  1355  PDT Oct 19 2020
                  2055  UTC Oct 19 2020
 * Coordinates    54.7 North 159.6 West
 * Depth          25 miles
 * Location       55 miles SE of Sand Point, Alaska
                  575 miles SW of Anchorage, Alaska