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 ...

A powerful earthquake struck off the coast of Northern California on Thursday, prompting the National Weather Service to briefly issue a tsunami warning for communities from Oregon to just south ...

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 ...

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 ...

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.