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

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.

Term, a group of 16 Macalester students and five geology department faculty traveled to Argentina in a new short-term study away program. The two-credit course “GEOL 201: Geological Excursions in ...

Plumas-Eureka State Park offers a hidden gem in the Sierra Nevada with Gold Rush history, stunning hikes, alpine lakes, and year-round outdoor adventures.

The Rocky Mountains have always looked like a geological non sequitur, a towering spine of peaks sitting far from the ...

The exceptionally well-preserved fossils shine a light on the mass extinction that brought an end to the “Biological Big Bang.” ...

The model also proved the theorized existence of the Pioneer fragment, a remnant of the ancient Farrallon plate that used to ...

Earth is covered with technofossils, or man-made materials, that will last for centuries and maybe even longer.

About 700 million years ago, Earth was entombed in a veneer of ice hundreds of feet thick—a frozen state scientists refer to ...

A new book by author Julian Sancton explores the lengthy quest to find the Spanish galleon—and the political firestorm that ...