The ground under western Montana occasionally rumbles and shakes with an average of 10 occurring per day. In the video above, ...

Southern California is experiencing a notable uptick in seismic activity, with experts confirming a surge in moderate earthquakes not seen in decades. The trend is prompting increased concern and ...

Seismologist Won-Young Kim examines signals from a network of seismometers monitoring for earthquakes in New York, New Jersey and New England. Kevin Krajick / Lamont-Doherty Earth Observatory On April ...

Tsunami alerts lit up Siri Zama's phone on Tuesday. The 28-year-old high school teacher in Kapolei, Hawaii, fled inland. "It was raining, and the clouds got real dark. It was just a little scary. I ...