A geological fault is (in geology) a planar fracture or discontinuity in a volume of rock, across which there has been significant displacement along the fractures. More simply put, it’s a ...

The formation of Heart Mountain near Cody is a story of a block of rock the size of Rhode Island moving at 700 mph, an ...

Impact: The 1933 earthquake was Southern California’s deadliest in the modern record, leaving nearly 120 dead and causing $40 ...

This happened at sea, a few miles away from Ferndale and Petrolia in California, very close to a geological fault, specifically in the Mendocino Fracture Zone, an undersea fracture. On Wednesday, ...

The data has also revealed fault scarps near Gardiner, in Montana, that are likely linked to another fault system, East Gallatin-Reese Creek, which extends into Yellowstone National Park.

Fault scarps — linear “steps” in the ground formed when past large earthquakes (generally magnitude 6.5 and higher) ruptured the Earth’s surface along geologic faults — are one such ...

Magnetic data suggest Seattle's fault line formed 55 million years ago, when the southern half of a subducting chain of volcanic islands piled onto the continent and tore apart from the northern half.