Copyright Information: All images are in the public domain and available for free. If you use this image, credit NOAA/NGDC, Earthquake Engineering Research Institute. |
This view of Fourth Avenue in downtown Anchorage shows the damage to the street and buildings resulting from the landslide. There was 3.3 m of subsidence and 4.2 m of horizontal movement. Two and one-half blocks of shops, bars, and stores slowly settled until their entrances were below street level. The landslide was induced by a combination of loss of strength in sensitive (quick) clay layers and liquefaction of sand and silt lenses. Image Credit: Earthquake Engineering Research Institute 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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