More than 100 people, including San Francisco’s leaders and most loyal larks, gathered downtown before sunrise Friday for the annual ceremony commemorating the 1906 morning when a 7.9-magnitude ...

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

Concerns about the potential unintended consequences of installing a revetment were raised by the public but staff warn a ...

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