NORFOLK, Va. — Fault lines are fractures or breaks in the Earth's crust where tectonic plates move past each other, often resulting in earthquakes. These geological features are classified into three ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers have discovered evidence of “partial synchronization” of two of the world’s most famous fault lines—the northern San ...

While it is often said that mountains don’t move, in reality, the Colorado Rocky Mountains are the result of a slow dance that has been occurring beneath the earth’s surface for hundreds of millions ...

There's a sleeping fault line that runs along the border between Canada and Alaska. The line has been dormant for millions of years as best scientists can tell. But new research suggests it could be ...

Readers ask: “Where exactly is the Balcones Fault?” And while we’re at it, “What precisely is the Balcones Escarpment?” Excellent questions. Even some old-timers can’t tell you exactly where these two ...

Here’s what you’ll learn when you read this story: Researchers hoping to unravel the dance of earthquake movement in North America’s West Coast discovered a disturbing fact: Two of the world’s largest ...