A magnitude 7 earthquake shook parts of Humboldt County on Thursday morning, temporarily forcing a tsunami warning that ... the San Francisco Bay. The USGS map shows the epicenter for the 10: ...

The quake struck not long before 11 a.m. off the coast of Humboldt County ... See below for a map of tsunami risk by county, and a list of the U.S. counties at greatest risk from such a disaster.

A magnitude 7.0 earthquake shook Thursday — and while Humboldt County evaded major structural damage and injuries, many locals bungled the tsunami evacuation. Of particular concern was a traffic ...