The Alaska earthquake of 10 July 1958 was caused by movement on the Fairweather fault amounting to at least 21 1/2 feet horizontally and 3 1/2 feet vertically. Effects of strong shaking were evident over a large area in southeastern Alaska. In Lituya Bay an enormous wave, possibly resulting from a rockslide, reached a maximum height of more than 1700 feet.
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Field observations on effects of Alaska earthquake of 10 July 1958