A megathrust earthquake is coming for the Pacific Northwest. But new imaging of undersea faults and fractures has given ...

The quake struck at 10:44 a.m.Thursday. The shaking reached as far as the San Francisco Bay Area, nearly 270 miles away. People there said they felt both the initial quake and several waves of ...

The Mendocino Triple Junction off the coast of Northern California is the point where three tectonic plates meet. A new study reveals at least five moving pieces deep below the Earth's surface make up ...

Earlier on Saturday, another earthquake of magnitude 4.4 struck the region at a depth of 90km.

A small earthquake was recorded in New York Tuesday morning, adding to a series of minor quakes that have been detected ...