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

Tips. If a tsunami evacuation emergency is in place, move to high ground 100 feet above sea level or two miles inland. If in a boat, move to deep water.

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.

Tips. If a tsunami evacuation emergency is in place, move to high ground 100 feet above sea level or two miles inland. If in a boat, move to deep water.

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.

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: ...