Under California's Sierra Nevada mountains, a slow yet powerful force will change the entirety of the Earth's crust there.

The storm is set to bring heavy snow, heavy rain and strong winds across the Golden State through Thursday night.

The petroglyphs can be found on volcanic tuff formations formed over 760,000 years ago when a large eruption released hot ash ...

SAGA’s 2025 maiden drill program aimed to test the core of the magnetic anomaly identified through geophysics at the Hawkeye ...

In a groundbreaking discovery, American researchers have unveiled a surprising finding that could drastically alter our ...

Professors at Cal Poly Humboldt are hosting a public forum, “Evening Discussion of Local Earthquake and Tsunami Hazards,” to ...

The U.S. Geological Survey said this is the most 4.0 or above earthquakes to strike Southern California in the past 65 years.

A 4.1-magnitude earthquake shook Malibu, the San Fernando Valley and other parts of Southern California on Sunday afternoon.

A pair of earthquakes, including a 3.3 magnitude, shook the same area of Los Angeles early Monday morning where a 4.1 magnitude temblor hit Sunday afternoon. The 3.3 magnitude quake struck at 2:23 ...

A 3.3-magnitude earthquake​ was reported in the Malibu area early Monday morning, according to the U.S. Geological Survey.