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, ...

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

Earthquakes can’t be predicted. But a manga artist’s dream of a July 5 'megaquake' has spooked some residents and travelers.

Learn more about the new hydrothermal feature that appeared last summer in Yellowstone National Park, and how, even though it ...