Alaska is a place where there are a lot of earthquakes hazard. A few statistics regarding the seismic activity of Alaska indicates this fact. For example, Alaska has 11 % of the world recorded earthquakes and three of the world’s largest earthquakes are recorded in this state. Also, seven out of ten largest earthquakes from USA were in Alaska. Every 13 years, at least one great earthquake occurs (magnitude 8 or higher).
In 1964, the Great Alaska Earthquake was recorded with a magnitude of 9.2. This is the second largest earthquake ever registered. I posted some pictures which shows the massive damage which occurred:
The Alaska Seismic Hazards Safety Commission is an agency which measure and evaluates the movement of tectonic plates. For the report of February 2010, the agency estimates the fault’s long term slip (http://www.dggs.dnr.state.ak.us/download/ashsc_meetings_minutes/ASHSC_2010_annual_report.pdf).
The ASHSC proofs that in a specific Alaska zone, the earth moves about 0.4 inches per year. This is pretty accurate taking in consideration that Pacific tectonic plates moves at about 0.5 inches per year.
Resources:
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1) http://www.johnmartin.com
2) http://www.ce.washington.edu
3) http://kska.org
4) http://www.infoaboutalaska.com
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