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

The rupture struck just southwest of the Cascadia subduction zone — the offshore fault capable of generating 8.5 or 9.0 earthquakes, followed by massive tsunamis.

A tsunami that never ends? Study highlights a looming West Coast risk. The tsunami wave from an anticipated earthquake off the West Coast could reach 100 feet and permanently flood parts of the coast.

According to The Independent, the Cascadia research indicates that an earthquake there would produce a “mega-tsunami” event. While a big earthquake could result in a big tsunami, the ...

But Geist says it’s unclear how a tsunami from “The Really Big One” would affect the Bay Area. “Oregon, Washington and ...

A tsunami warning was issued after a magnitude 7.0 earthquake struck off the coast of the Humboldt Peninsula on Thursday morning, but it was later canceled. (Jane Tyska/Bay Area News Group) ...

They have a small tsunami, a medium tsunami and a big tsunami. In the U.S. we just have one level. We just have warning. VENTON: The warning, triggered by provisional data gathered quickly, ...

The Indian Ocean tsunami in 2004, one of the deadliest events in recorded history, was an enigma to many survivors. Some experts were surprised to learn that a significant number of the people in ...

A massive landslide triggered by climate change unleashed a 650-foot “mega-tsunami” that caused Earth to vibrate for nine days. The seismic event in a remote part of Greenland last September ...

The silver tsunami in demographic terms continues to demonstrate that it is less of a theory and more of a reality for an increasingly large number of communities across the country. Related More: ...

A 7.0 earthquake off the coast of Northern California in early December triggered a tsunami warning for parts of the California and Oregon coasts.

Earlier tsunami warnings following a huge 7.0 earthquake in California have been lifted. Newsweek's live blog is closed.