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This is a Tsunami Information Statement for Alaska.

* There is NO tsunami danger from this earthquake.

Tsunami Information Statement Number 1

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Earthquake Information
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Location: 90 miles NW of Sitka, Alaska
Lat: 58.088 N
Lon: 136.91 W
Magnitude: 4.2
Origin Time: 2017-01-16 13:40 PST
Depth: 7 miles
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This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.

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This is a Tsunami Information Statement for Alaska.

* There is NO tsunami danger from this earthquake.

Tsunami Information Statement Number 1

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Earthquake Information
----------------------------------
Location: 90 miles NW of Sitka, Alaska
Lat: 58.103 N
Lon: 136.871 W
Magnitude: 4.1
Origin Time: 2017-01-16 12:53 PST
Depth: 7 miles
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This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.

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This is a Tsunami Information Statement for Alaska.

* There is NO tsunami danger from this earthquake.

Tsunami Information Statement Number 1

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Earthquake Information
----------------------------------
Location: 125 miles SE of Amchitka, Alaska
Lat: 51.175 N
Lon: 178.192 W
Magnitude: 5.1
Origin Time: 2017-01-11 11:42 PST
Depth: 21 miles
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This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.

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This is a Tsunami Information Statement for Alaska, British Columbia, Washington, Oregon, and California.

* There is no tsunami danger for the U.S. West Coast, British Columbia, or Alaska.
* Based on earthquake information and historic tsunami records, the earthquake was not sufficient to generate a tsunami.

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Tsunami Information Statement Number 1

Earthquake Information
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Location: near the Solomon Islands
Lat: 10.2 S
Lon: 161.1 E
Magnitude: 6.7
Origin Time: 2017-01-10 07:27 PST
Depth: 42 miles
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This will be the only U.S. National Tsunami Warning Center message for this event unless additional information becomes available. Refer to the internet site ntwc.arh.noaa.gov for more information.

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This is a Tsunami Information Statement for Alaska, British Columbia, Washington, Oregon, and California.

* There is no tsunami danger for the U.S. West Coast, British Columbia, or Alaska.
* Based on the depth of the earthquake, a tsunami is not expected.

...

Tsunami Information Statement Number 2

Earthquake Information
----------------------------------
Location: in the Celebes Sea, Indonesia
Lat: 4.5 N
Lon: 122.7 E
Magnitude: 7.2
Origin Time: 2017-01-09 22:13 PST
Depth: 389 miles
----------------------------------

This will be the final U.S. National Tsunami Warning Center message for this event unless additional information becomes available. Refer to the internet site ntwc.arh.noaa.gov for more information.

See More

This is a Tsunami Information Statement for Alaska, British Columbia, Washington, Oregon, and California.

* There is no tsunami danger for the U.S. West Coast, British Columbia, or Alaska.
* Based on the depth of the earthquake, a tsunami is not expected.

...

Tsunami Information Statement Number 1

Earthquake Information
----------------------------------
Location: in the Celebes Sea, Indonesia
Lat: 4.421 N
Lon: 122.71 E
Magnitude: 6.9
Origin Time: 2017-01-09 22:13 PST
Depth: 386 miles
----------------------------------

This will be the only U.S. National Tsunami Warning Center message for this event unless additional information becomes available. Refer to the internet site ntwc.arh.noaa.gov for more information.

See More

This is a Tsunami Information Statement for Alaska.

* There is NO tsunami danger from this earthquake.

Tsunami Information Statement Number 1

...

Earthquake Information
----------------------------------
Location: 35 miles SW of Nikolski, Alaska
Lat: 52.719 N
Lon: 169.638 W
Magnitude: 5.1
Origin Time: 2017-01-09 11:20 PST
Depth: 57 miles
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This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.

See More

This is a Tsunami Information Statement for Alaska.

* There is NO tsunami danger from this earthquake.

Tsunami Information Statement Number 1

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Earthquake Information
----------------------------------
Location: near Queen Elizabeth Islands, Canada
Lat: 74.377 N
Lon: 91.902 W
Magnitude: 4.9
Origin Time: 2017-01-09 09:55 PST
Depth: 12 miles
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This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.

See More

This is a Tsunami Information Statement for Alaska.

* A tsunami is NOT expected to be generated by this earthquake.

Tsunami Information Statement Number 1

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Earthquake Information
----------------------------------
Location: near Queen Elizabeth Islands, Canada
Lat: 74.396 N
Lon: 91.736 W
Magnitude: 5.8
Origin Time: 2017-01-08 15:47 PST
Depth: 1 miles
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This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.

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This is a Tsunami Information Statement for the U.S. west coast and British Columbia.

* There is NO tsunami danger from this earthquake.

Tsunami Information Statement Number 1

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Earthquake Information
----------------------------------
Location: 115 miles W of Port Alice, British Columbia
Lat: 50.25 N
Lon: 129.79 W
Magnitude: 5.5
Origin Time: 2017-01-06 19:13 PST
Depth: 7 miles
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This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.

See More

This is a Tsunami Information Statement for the U.S. west coast and British Columbia.

* There is NO tsunami danger from this earthquake.

Tsunami Information Statement Number 1

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Earthquake Information
----------------------------------
Location: 130 miles W of Port Alice, British Columbia
Lat: 50.296 N
Lon: 130.112 W
Magnitude: 5.1
Origin Time: 2017-01-06 08:52 PST
Depth: 7 miles
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This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.

See More

This is a Tsunami Information Statement for Alaska.

* There is NO tsunami danger from this earthquake.

Tsunami Information Statement Number 1

...

Earthquake Information
----------------------------------
Location: 55 miles NE of Iliamna, Alaska
Lat: 60.117 N
Lon: 153.492 W
Magnitude: 4.4
Origin Time: 2017-01-04 06:15 PST
Depth: 98 miles
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This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.

See More

This is a Tsunami Information Statement for Alaska, British Columbia, Washington, Oregon, and California.

* There is no tsunami danger for the U.S. West Coast, British Columbia, or Alaska.
* Based on earthquake information and historic tsunami records, the earthquake was not sufficient to generate a tsunami.

...

Tsunami Information Statement Number 1

Earthquake Information
----------------------------------
Location: south of the Fiji Islands
Lat: 19.5 S
Lon: 176.2 E
Magnitude: 7.2
Origin Time: 2017-01-03 13:52 PST
Depth: 6 miles
----------------------------------

This will be the only U.S. National Tsunami Warning Center message for this event unless additional information becomes available. Refer to the internet site ntwc.arh.noaa.gov for more information.

See More

This is a Tsunami Information Statement for Alaska.

* There is NO tsunami danger from this earthquake.

Tsunami Information Statement Number 1

...

Earthquake Information
----------------------------------
Location: 90 miles SE of Buldir I., Alaska
Lat: 51.116 N
Lon: 176.683 E
Magnitude: 5.0
Origin Time: 2016-12-30 21:21 PST
Depth: 67 miles
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This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.

See More

This is a Tsunami Information Statement for Alaska.

* There is NO tsunami danger from this earthquake.

Tsunami Information Statement Number 1

...

Earthquake Information
----------------------------------
Location: 50 miles E of Cape Yakataga, Alaska
Lat: 60.141 N
Lon: 141.003 W
Magnitude: 4.2
Origin Time: 2016-12-26 15:59 PST
Depth: 4 miles
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This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.

See More

This is a Tsunami Information Statement for Alaska, British Columbia, Washington, Oregon, and California.

* There is no tsunami danger for the U.S. West Coast, British Columbia, or Alaska.
* Based on earthquake information and historic tsunami records, the earthquake was not sufficient to generate a tsunami.

...

Tsunami Information Statement Number 1

Earthquake Information
----------------------------------
Location: in southern Chile
Lat: 43.3 S
Lon: 74.5 W
Magnitude: 7.7
Origin Time: 2016-12-25 06:22 PST
Depth: 9 miles
----------------------------------

This will be the only U.S. National Tsunami Warning Center message for this event unless additional information becomes available. Refer to the internet site ntwc.arh.noaa.gov for more information.

See More

This is a Tsunami Information Statement for Alaska.

* There is NO tsunami danger from this earthquake.

Tsunami Information Statement Number 1

...

Earthquake Information
----------------------------------
Location: 50 miles W of Homer, Alaska
Lat: 59.503 N
Lon: 152.88 W
Magnitude: 4.1
Origin Time: 2016-12-23 06:23 PST
Depth: 61 miles
----------------------------------

This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.

See More

This is a Tsunami Information Statement for Alaska, British Columbia, Washington, Oregon, and California.

* There is no tsunami danger for the U.S. West Coast, British Columbia, or Alaska.
* Based on earthquake information and historic tsunami records, the earthquake was not sufficient to generate a tsunami.

...

Tsunami Information Statement Number 1

Earthquake Information
----------------------------------
Location: near the Solomon Islands
Lat: 9.9 S
Lon: 161.0 E
Magnitude: 6.7
Origin Time: 2016-12-19 20:21 PST
Depth: 27 miles
----------------------------------

This will be the only U.S. National Tsunami Warning Center message for this event unless additional information becomes available. Refer to the internet site ntwc.arh.noaa.gov for more information.

See More

This is a Tsunami Information Statement for Alaska, British Columbia, Washington, Oregon, and California.

* No tsunami threat exists for the U.S. West Coast, British Columbia, or Alaska.
* Some of the areas listed above may experience non-damaging sea level changes.

...

Tsunami Information Statement Number 2

Earthquake Information
----------------------------------
Location: near the western Caroline Islands, southwest Pacific Ocean
Lat: 8.3 N
Lon: 137.7 E
Magnitude: 6.1
Origin Time: 2016-12-18 01:47 PST
Depth: 18 miles
----------------------------------

This will be the final U.S. National Tsunami Warning Center message for this event unless additional information becomes available. Refer to the internet site ntwc.arh.noaa.gov for more information.

See More

This is a Tsunami Information Statement for Alaska, British Columbia, Washington, Oregon, and California.

* Earthquakes of this size are known to generate tsunamis potentially dangerous to coasts outside the source region.
* The U.S. National Tsunami Warning Center is analyzing the event to determine the level of danger.
* More information will be issued as it becomes available. ...
* This earthquake has the potential to generate a destructive tsunami in the source region.

Tsunami Information Statement Number 1

Earthquake Information
----------------------------------
Location: near the western Caroline Islands, southwest Pacific Ocean
Lat: 8.3 N
Lon: 137.7 E
Magnitude: 6.5
Origin Time: 2016-12-18 01:47 PST
Depth: 18 miles
----------------------------------

Messages will be issued hourly to keep you informed of the progress of this event. Refer to the internet site ntwc.arh.noaa.gov for more information.

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NTWC's Facebook page will often not reflect the most current information. For current official information, visit: http://ntwc.arh.noaa.gov/
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National Tsunami Warning Center's photo.
National Tsunami Warning Center's photo.
'A tsunami is a series of waves (not just one) caused by a large and sudden disturbance of the sea. Most tsunamis are caused by undersea earthquakes, but can also be caused by landslides, volcanic activity and even meteorites. There is no season for tsunamis. A tsunami can strike anywhere along an ocean coast at any time. If you live or play near the coast, educate yourself about tsunamis and know how to stay safe.

Learn more at: http://www.nws.noaa.gov/om/Tsunami/about.shtml 
#TsunamiPrep'
'NTWC issues four types of messages: Warning, Watch, Advisory, and Information Statement.  In short, the messages mean:
Warning -> Inundating wave possible  -> Full evacuation suggested
Advisory -> Strong currents likely -> Stay away from the shore
Watch -> Danger level not yet known  -> Stay alert for more info
Information -> Minor waves at most -> No action suggested

Official tsunami warnings are broadcast through local radio and tv, wireless emergency alerts, NOAA Weather Radio and NOAA websites. They may also come through outdoor sirens, local officials, text message alerts and telephone notifications. 

Learn more about tsunami alerts for the U.S. at: http://www.nws.noaa.gov/om/Tsunami/alerts.shtml. #TsunamiPrep'
'This is the view from the seismic station satellite up-link looking towards the tsunami gauge in Sand Point, AK.'
'The above ground view of the seismic station in Sand Point, AK.  Seismic stations are generally buried underground and well insulated.  The slightest air movement or sudden temperature changes can affect the quality of the data.'
'seismic installation in Sand Point, AK.  It utilizes a Nanometrics Centaur digitizer and an STS-2 seismometer.'
National Tsunami Warning Center's photo.
National Tsunami Warning Center's photo.
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