The increase in seismic activity is concentrated on the caldera's northern end ... in science communication from the University of California, Santa Cruz.

Jan. 29—Maine experienced another earthquake Wednesday morning, but this one was much weaker than the one that rattled the region Monday. The 2.0 magnitude earthquake at 3:15 a.m. was centered ...

The earthquake on Monday — the fifth largest in Maine history — was felt as far north as Bangor and as far south as New York City. Many people who felt and heard the seismic activity mistook ...

Tsunami warning lifted for Bay Area coast after magnitude 7.0 earthquake hits California ... Boston College shows the activity of 3.8-magnitude earthquake that shook northern New England on ...

The massive magnitude 9 quake stretched from Northern California to ... California have advanced earthquake warning systems with seismometers tracking earthquake activity, noting there is some ...

-USA TODAY Network trending reporter Alexis Simmerman contributed to this report.

NASA's observatory has released a new image of the Sáttítla Highlands, located in Northern California, an area renowned for its seismic activity and ancient lava flows.

While no injuries or damage was reported, the seismic activity followed a deadly stretch of wildfires in Southern California that ... Both the southern and northern sections of the San Andreas ...

While no injuries or damage was reported, the seismic activity followed a deadly stretch of wildfires in Southern California that ... Both the southern and northern sections of the San Andreas ...