They are two of the West Coast's most destructive generators of huge quakes: the San Andreas fault and the Cascadia ...

A recent study suggests the Cascadia subduction zone and the San Andreas fault may be synchronized, with seismic activity on ...

Two fault systems on North America’s West Coast – the Cascadia subduction zone and the San Andreas fault – may be ...

They are two of the West Coast’s most destructive generators of huge earthquakes: The San Andreas fault in California and the ...

A Cascadia subduction zone earthquake is coming for the Pacific Northwest, and when it hits, scientists now believe, it could cause the San Andreas fault in California to go off. “It would be a very ...

California is one of the most active earthquake regions in the world. The San Andreas Fault, a 1,300-kilometer-long fracture zone in the earth's crust, runs through the cities of San Francisco and Los ...

When the tectonic subduction zone beneath the Pacific Northwest moves, it does so in dramatic fashion. Not only is ground ...

Scientists at Oregon State University say there's new evidence that two of the best-known earthquake fault lines on the West ...

A 4.3 magnitude earthquake struck Berkeley, California, on Monday morning, the U.S. Geological Survey (USGS) said. Neighboring San Francisco felt the tremor. The quake struck shortly before 3 a.m. PDT ...

Sleeping residents of California’s San Francisco Bay Area were rattled awake by a magnitude 4.3 earthquake in the early morning hours of September 22. The earthquake struck 1.25 miles east-southeast ...

A strong 5.9 magnitude earthquake has struck off the coast of Oregon, the U.S. Geological Survey (USGS) said. The quake struck 142 miles west of the town of Bandon at a shallow depth of just 6 miles, ...