Abstract
Abstract Allan, J.C.; Komar, P.D.; Ruggiero, P., and Witter, R., 2012. The March 2011 Tōhoku tsunami and its impacts along the U.S. West Coast. The March 11, 2011, magnitude 9, Tōhoku earthquake off the coast of Japan generated a tsunami that crossed the Pacific Ocean and impacted the shores of the U.S. West Coast. Analyses of the arrival times, wave heights, periods, and total water levels from the tsunami waves and the tides have been undertaken for 17 tide gauges along the length of the West Coast. Significant along-coast variations in wave heights were found, with the highest waves having been recorded at Crescent City (maximum height of 4.23 m) in northern California and in San Luis Obispo Bay (maximum 4.25 m) in southern California. It was concluded that similar to the Kuril Island tsunami in 2006, the particularly large wave heights that impacted the California–Oregon border region, including Crescent City, California, were the result of wave refraction that focused tsunami energy into a relatively...
Published Version
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