[Roger Bilham] Japan’s megaquake is template for U.S. west coast
ViewpointsMar 24, 2011
As the world’s attention remains fixed on Japan’s crippled nuclear reactors, scientists are beginning to understand the details of the megaquake that brought so much ruin to Japan, saying it’s probably the largest temblor to hit the nation in 1,000 years.Seismologists have known for some time that over periods of millennia such megaquakes occur. They pack the punch of three or more major earthquak