Last week's earthquake off the coast of Humboldt County triggered a tsunami warning urging people across a huge swath of California and Oregon to evacuate. Why aren't tsunami warnings more precise?
sending children scrambling under desks and prompting a brief tsunami warning for 5.3 million people along the U.S. West Coast. The quake struck at 10:44 a.m. west of Ferndale, a small city in coastal ...