For more than a month, the Bay Area has been subjected to a seemingly ceaseless stampede of earthquakes, rattling windows and raising fears across California.

Could the string of small earthquakes be an indication of the fact that the earthquake history in the Bay Area may not be complete as yet? In the evening hours of the 19th of December, the string of ...

A solar cycle is a roughly 11-year periodic change in the Sun characterized by variations in the number and intensity of sunspots, as well as a flipping of its magnetic poles.

Kablooey!” That’s the word U.S. Geological Survey volcanic experts used to describe a muddy eruption at Black Diamond Pool in ...

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

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

A 4.5 magnitude earthquake struck off the coast of Oregon early Sunday morning, according to the U.S. Geological Survey. The ...

A swarm of at least a dozen earthquakes reaching up to magnitude 3.9 rattled San Ramon near San Francisco, the U.S. Geological Survey reports. The other quakes in the Saturday, Dec. 21, swarm ranged ...

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 ...

Buried in the reddish soil of southern China lies latent power: one of the largest clusters of crucial rare earths is mined around the clock by a secretive and heavily ...

Since 2000, specialists at the National Museum of Natural History have produced the world’s foremost report on active ...