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

A US Geological Survey research program that helped reduce sea lamprey populations by 90% will continue supporting commercial ...

A swarm of at least a dozen earthquakes reaching up to magnitude 3.9 rattled San Ramon near San Francisco, the U.S.

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

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.

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

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

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

SAN BENITO COUNTY, CA - A 3.5 magnitude quake was reported near Ridgemark on Sunday around midday, according to the U.S.

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.