Northern California is accustomed to frequent earthquakes, particularly in areas like Cobb and The Geysers, where geothermal activity can trigger smaller quakes regularly. As a result, a 4.7 quake ...

Mike McGuire. The 7.0-magnitude quake is one of at least 17 events that rattled Northern California on Thursday, with most of the seismic activity concentrated around Humboldt County. At least ...

This week was the USGS Northern California Earthquake Hazards Workshop (NCEHW). I joined other earthquake hazards professionals for three days of virtual talks and discussions about the latest ...

Powerful earthquakes like the one felt last week across Northern California are stark reminders ... was to increase spawning activity to protect their population. It's a phenomenon that's happened ...

In the past, they reacted to these disturbances by increasing their spawning activity. The most recent surveys counted 191 fish in April–the highest number in 25 years–and 212 fish in September.

Scientists have discovered evidence that California is actually peeling apart below the surface, as dense rocks under the ...

Getty Images/iStockphoto A 3.7-magnitude earthquake shook the San Francisco Bay Area in Northern California, the U.S. Geological Survey reported. The about 5-mile deep quake hit about three miles ...