CNN cites a new report by the California Seismic Safety Commission on the effects of tsunamis on the California coast. Here is an interesting paragraph:
The Cascadia subduction zone will produce the State’s largest tsunami. The Cascadia subduction zone is similar to the Alaska- Aleutian trench that generated the magnitude 9.2 1964 Alaska eaatrrthquake and the Sunda trench in Indonesia that produced the magnitude 9.3 December 2004 Suma earthquake. Native American accounts of past Cascadia earthquakes suggest tsunami wave heights on the order of 60 feet, comparable to water levels in Aceh Province Indonesia. Water heights in Japan produced by the 1700 Cascadia earthquake were over 15 feet, comparable to tsunami heights observed on the African coast after the Sumatra earthquake.
