Copyright Information: All images are in the public domain and available for free. If you use this image, credit NOAA/NGDC, U.S. Geological Survey. |
One span of the "Million Dollar" truss bridge of the former Copper River and Northwestern Railroad was dropped into the Copper River by the earthquake and the other truss spans were shifted on their piers. The bridge construction consisted of concrete piers on concrete caissons 35 to 50 feet (10.6-15.1 m) below the stream bed. The superstructure consisted of steel trusses. Image Credit: U.S. Geological Survey March 28, 1964 Prince William Sound USA earthquake and tsunami The earthquake was one of the largest earthquakes ever recorded on the North American Continent. It was a magnitude 8.4 earthquake, felt over 500,000 square miles. This great earthquake and ensuing tsunami took 125 lives (tsunami 110, earthquake 15). Event Data:
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