Earthquake scientists discover warning signs of ‘The Big One’. When should they tell the public?

COPALIS BEACH, WASH. — When Japan first issued a “megaquake” warning last week, Washington state seismologist Harold Tobin watched closely. The advisory came after a 7.1-magnitude earthquake struck the southern island of Kyushu. While the quake caused little major damage — the largest tsunami it generated was said to have reached knee-deep — it was … Read more