Scientists are monitoring a city of Chicago-sized swath of rising ground at the northern volcanic rim of the Yellowstone ...

Initial reports indicate that it registered as a 4.2 quake, and was centered about nine miles from Great Falls.

A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park.

Learn more about the rare instances when seismic and magma activity overlap in Yellowstone National Park.

Tens of thousands of hidden earthquakes were recently discovered beneath the Yellowstone volcano by a group of international scientists, revealing ways to better inform the public of potential risks.

Something roughly the size of Chicago is quietly pushing the ground upward along the north rim of the Yellowstone Caldera, ...

Far beneath Yellowstone’s famous geysers, the ground is quietly on the move. Parts of the volcanic system are rising by ...

The vast majority of the many quakes across the region are very small, rarely felt by people, and cause no damage.

Yellowstone is a dynamic geologic system—the one constant is change. This is demonstrated daily by hydrothermal activity manifested in geysers, hot springs, mud pots, and other thermal features, but e ...

A 4.2 magnitude earthquake struck near Great Falls on Thursday, rattling residents across central Montana but causing minimal damage, according to the United States Geological Survey (USGS).