Scientists link a magnitude 6.5 earthquake that shook Humboldt Bay, California, 71 years ago to the "locked" Cascadia Subduction Zone.

What lies beneath Fickle Hill in northern California? Maybe the answer to an earthquake mystery that has puzzled ...

The recent earthquake is a reminder of the seismic volatility that characterizes the area near Eureka. The quake occurred in the vicinity of the Mendocino Triple Junction, a highly active seismic zone ...

A groundbreaking study from Virginia Tech warned that three US states are at significant risk of experiencing catastrophic ...

Southern Washington, northern Oregon, and northern California are the regions which are most vulnerable to flooding from a ...

A series of more than 100 earthquakes has hit Northern California, shaking up the Geysers geothermal steam field in Sonoma ...

More than 100 small earthquakes have been recorded near the Geysers geothermal field in Northern California since just after midnight Thursday, according to the U.S. Geological Survey.

Two earthquakes struck different parts of Northern California early Thursday morning, according to the U.S. Geological Survey. The first, a 4.0-magnitude quake, hit at 5:48 a.m. about 5 miles ...

A series of moderate to minor earthquakes struck near the geologically active area in Northern California known as The Geysers south of Clear Lake Thursday morning.

Two earthquakes struck different parts of Northern California early Thursday morning, according to the U.S. Geological Survey ...

Gavin Newsom’s tunnel vision: Sacrificing Northern SJ Valley to keep LA water cheap Do not ever accuse Gov. Gavin Newsom of ...