U.S. West Coast, Alaska, and British Columbia coastal regions
NOAA/NWS/West Coast and Alaska
Tsunami Warning Center
Tsunami Advisory Cancellation
#25 issued 02/27/2010 at 11:13PM PST
The Tsunami Advisory is canceled for the coastal areas from Sand Point, Alaska to Attu, Alaska.
A damaging tsunami is not expected along the coasts of the U.S. west coast
states, Alaska, and British Columbia.
However, some of these areas may experience non-damaging sea level changes.
As local conditions can cause a wide variation in tsunami impact,
the all clear determinations must be made by local authorities.
A tsunami has been observed at the following sites:
Location Lat. Lon. Time Amplitude
Time - Time of measurement.
------------------------ ----- ------ ------- -----------
Adak AK 51.9N 176.6W 0440UTC 0.38M/1.2ft
Alitak AK 56.8N 154.3W 0516UTC 0.24M/0.8ft
Dutch Harbor AK 53.9N 166.5W 0313UTC 0.21M/0.7ft
King Cove AK 55.1N 162.3W 0230UTC 0.62M/2.0ft
Kodiak AK 57.7N 152.5W 0221UTC 0.44M/1.4ft
Sand Point AK 55.3N 160.5W 0409UTC 0.40M/1.3ft
Seward AK 60.1N 149.4W 0143UTC 0.38M/1.3ft
Shemya AK 52.7N 174.1E 0519UTC 0.27M/0.9ft
Sitka AK 57.1N 135.3W 0223UTC 0.21M/0.7ft
Atka AK 52.1N 174.4W 0417UTC 0.40M/1.3ft
Amp. - Tsunami amplitudes are measured relative to normal sea
level. It is NOT crest-to-trough wave height.
Values are given in both meters (M) and feet (FT).
At 10:34 PM Pacific Standard Time on February 26, an
preliminary magnitude 8.8
occurred near the coast of central Chile
(Refer to the United States Geological Survey for official earthquake parameters.)
The Pacific Tsunami Warning Center
in Ewa Beach, Hawaii is continuing its warning for areas of the Pacific
outside California, Oregon, Washington, British Columbia
and Alaska. This will be the last West Coast/Alaska Tsunami Warning Center
message issued for this event unless conditions warrant further information.
To repeat, NO tsunami warning, watch or advisory is in effect for
the U.S. West coast states, Alaska, and British Columbia.
See the WCATWC
web site for basic tsunami information,
and a tsunami travel time map
(NOTE: Travel time maps and tables indicate forecasted times only, not
that a wave was generated.)
Link to Standard Warning Message
Link to Public Warning Message
Link to XML/CAP Message
Link to Printable Message