At the Seismological Society of America's Annual Meeting, researchers posed a seemingly simple question: how wide are faults?

As amateur quake predictors gain online clout, govt officials scramble to debunk their wild theories, say none of them are ...

Sediment cores drawn from four lakes in Guatemala record the distinct direction that ground shaking traveled during a 1976 ...

Scientists found new evidence that Earth’s crust is peeling underneath the Sierra Nevada in California. The process might be ...