A 4.1-magnitude earthquake was reported in Alaska on Thursday (July 3), according to the United States Geological Survey. The ...

A preliminary 2.6-magnitude earthquake struck in the East Bay on Friday, according to the U.S. Geological Survey. The ...

Of the yet-to-be-discovered oil on U.S. federal lands, about half is believed to be in Alaska, according to the new estimate.

Seafloor sensors caught a rare slow quake in action. It hints at how Earth's stress is quietly released. For the first time, ...

Essentially, gas pistoning is a shallow, degassing-driven rise and fall of a lava surface. Often these pistons occur in ...