Beneath Cascadia’s forests and coastlines lies a 600-mile fault capable of producing a magnitude-9 earthquake. The last one struck in 1700, shaking the region for minutes and sending a massive tsunami ...

SAN FRANCISCO (KGO) -- Scientists say there's new evidence that two of the best-known earthquake fault lines on the West Coast are in sync and that has the potential for a major disaster. A new study ...

PORTLAND, Ore. — Tomorrow marks the International Shakeout, when millions of people around the world will hold earthquake drills. In Oregon, the event coincides with a major discovery by local ...

Here’s what you’ll learn when you read this story: The Tintina fault is thought to have been inactive for more than 40 million years, but new research suggests that earthquakes occurred in the zone ...

A small earthquake was reported early Wednesday morning, while residents of southeast Idaho slept. According to the United ...

Researchers have discovered evidence of “partial synchronization” of two of the world’s most famous fault lines—the northern San Andreas Fault and Cascadia Subduction Zone. The relationship between ...