A muddy eruption at Black Diamond Pool in Yellowstone National Park has been captured on camera. The video was recorded by the Yellowstone Volcano Observatory webcam Saturday morning.

No reports of major injuries or structural damage have emerged, and authorities have not issued a tsunami warning.

In California's East Bay, a recent swarm of small earthquakes has pushed long-standing seismic risks back into public view.

A series of earthquakes rattled the San Ramon area Friday night, with the largest being a preliminary magnitude 4.0, ...

Several small earthquakes struck in the East Bay near San Ramon on Friday evening, according to data from the U.S. Geological ...

Kilauea’s Halema‘uma‘u crater, with a style of activity not seen for nearly 40 years. The eruption, characterized by high lava-fountaining episodes, has continued for nearly a year. Hawaii Volcanoes ...

Another spectacular eruption at one of the most active volcanoes in the world has destroyed the live camera volcanologists ...

The U.S. Geological Survey said two small earthquakes were recorded near Lynn Saturday evening, the first at 5:20 p.m. and a ...

An alert that notified Bay Area residents of a 5.9 earthquake Thursday morning in Nevada was deleted by the U.S. Geological Survey. The ShakeAlert message at 8:08 a.m. said the quake was about 15 ...

A muddy eruption at Yellowstone National Park was just captured on camera in an area that has been closed to the public for ...