![]() ![]() A couple of tsunamis reported from Caribbean earthquakes had runups of less than 3 feet. The maximum tsunami runup was 6 to 23 feet, which was concentrated on the coast of Newfoundland, although it was recorded as far south as South Carolina. This wave pool at Knotts Soak City uses 750,000 gallons of water to create enormous wave crests that the whole family can enjoy. The most noteworthy tsunami resulted from the 1929 magnitude 7.3 Grand Banks earthquake near Newfoundland. Since the only major tsunami-generating subduction zones in the Atlantic Ocean are along the Caribbean Sea, tsunamis in the Atlantic have been relatively infrequent. The tsunami generated by the 1964 magnitude 9.2 earthquake in the Gulf of Alaska (Prince William Sound) caused damage and loss of life across the Pacific, including Alaska, Hawaii, California, Oregon, and Washington. state to feel the effects of the eruption was Hawaii, where waves over a foot were reported in Kauai and nearly three feet. ![]() Runup heights reached a maximum of 33 to 55 feet and killed 159 people. Tsunami surges felt from Hawaii to the U.S. One of the largest and most devastating tsunamis that Hawaii has experienced was in 1946 from an earthquake along the Aleutian subduction zone. Significant earthquakes around the Pacific rim have generated tsunamis that struck Hawaii, Alaska, and the U.S. Large tsunamis have occurred in the United States and will undoubtedly occur again. CO-OPS provides the national infrastructure, science, and technical expertise to monitor, assess, and distribute tide, current, water level, and other coastal oceanographic products and services that support NOAA's mission of environmental stewardship and environmental assessment and prediction. ![]()
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