Tsunamis pose a risk to the entirety of the California coast. But should a major one strike, how bad could it be?

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?

How common are they in California? Since 1800, California’s shores have been struck by more than 150 tsunamis, most of them minor, according to the California Geological Survey. Phones buzzed Thursday ...

California Tsunami Warning Canceled A Tsunami Warning has been canceled following a 7.0 Humboldt County earthquake that prompted officials to warn Bay Area residents to keep away from the coastline.

USGS says that a magnitude 7.0 earthquake has hit Northern California in Humboldt County. A tsunami warning has been issued by the NWS. Residents in parts of the Bay Area have reported feeling the ...

This image, posted by the Redwood Coast Tsunami Work Group at Cal Poly Humboldt, shows earthquake devastation after three earthquakes magnitude 7.2, 6.7 and a 6.6 rocked Ferndale in Humboldt ...

Live updates on the earthquakes and tsunami alert 6:30 p.m.: KCRA 3's Michelle Bandur talked to the California Highway Patrol's Humboldt County division about their response to Thursday's earthquake.

A series of earthquakes struck Humboldt County in Northern California Thursday, causing chaos, especially among coastal communities from the Golden State to Oregon. The initial magnitude was measured ...

A 7.0 magnitude earthquake was reported off the coast of Northern California, according to the USGS. A tsunami warning that had been issued was canceled.

A tsunami warning was issued for northern California following a large earthquake off the coast of Humboldt County, on Thursday morning. The tsunami warning includes a section of Santa Cruz County.