To: U.S. West Coast, Alaska, and British Columbia coastal regions
From: NOAA/NWS/West Coast and Alaska Tsunami Warning Center
Subject: 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
 ------------------------  -----  ------  -------     -----------

 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
Time - Time of measurement.
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 earthquake with 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, safety rules, and a tsunami travel time map and table. (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