A 4.2 magnitude earthquake struck near Great Falls on Thursday, briefly rattling residents and raising questions about why earthquakes occur in the region.

Extreme ice in the South and snow in the Northeast to cause major problems Florida husband and wife arrested in alleged $500,000+ luxury car title fraud scheme Party on aisle six: Grocery stores go ...

Did you feel it? An earthquake with a preliminary magnitude of 3.4 struck near San Ramon on Friday morning, the U.S. Geological Survey said.

Yosemite National Park is defined by its overwhelming magnitude. Granite cliffs rise thousands of feet into the California sky, and waterfalls thunder with a power that vibrates in your chest. But ...

This illustrated geologic timescale of Earth focuses on the landscapes, flora and fauna of the West, drilling into the region’s deep history.