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 ...

Why don't we know when the next big earthquake will hit? There's an explanation for that. Tectonic plates are, like most of us, under a lot of stress and are always in motion. But they move slowly, ...

A powerful earthquake measuring 6.2 on the Richter scale struck Indonesia on Tuesday, according to India’s National Centre ...

A magnitude 5.1 earthquake on Thursday morning in the Atlantic Ocean caused shaking in Puerto Rico. The earthquake happened ...

Add Yahoo as a preferred source to see more of our stories on Google. A magnitude 6 earthquake struck eastern Afghanistan near the border with Pakistan just before midnight local time on Sunday, ...

It was a groundbreaking discovery. Scientists have found previously concealed fault lines along California’s north coast, sparking concerns that we could be drastically underestimating the earthquake ...

This gradual accumulation and release of stress and strain is now referred to as the "elastic rebound theory" of earthquakes. Most earthquakes are the result of the sudden elastic rebound of ...

Why the ground shakes under Redding and Shasta County, and why it will keep shaking. Why Redding earthquakes may feel different from Eureka's in Humboldt County. Earthquakes that shake the ground ...