Data from the USGS shows the seismic events have ranged in strength from 2.5 up to 4.2 in magnitude.

Kilauea has been erupting episodically within the summit caldera since Dec. 23, 2024. Its USGS Volcano Alert level is WATCH.

A series of earthquakes rocked a Bay Area city on Feb. 2. Did you feel it? San Ramon was hit by a cluster of quakes starting ...

A minor, 3.8-magnitude earthquake struck in the San Francisco Bay Area on Monday, followed by a larger 4.2 magnitude ...

Many Hawaiʻi Island communities downwind from the eruptive vents in the southwest portion of Halemaʻumaʻu Crater inside the ...

Did you feel them? A 4.2 earthquake struck near San Ramon Monday morning amid a string of over 30 temblors in the area, the U ...

Advanced modeling has revealed an Australia-shaped magnetic anomaly beneath the country's Northern Territory that holds ...

The western U.S. is a geologists' dream, home to the Rocky Mountains, the Grand Canyon, active volcanoes and striking sandstone arches. But one landform simply doesn't make sense.

At least 33 earthquakes of magnitude 1.3 or higher struck within about 90 minutes Monday morning, with most centered near San Ramon, California.

In the Pacific Northwest, big faults like the Cascadian subduction zone located offshore, get a lot of attention. But big ...

A 3.5 magnitude earthquake shook parts of Utah Thursday, the second felt in two weeks. The tremors come as experts remap the ...