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

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

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

A series of moderate to minor earthquakes struck near the geologically active area in Northern California known as The ...

An earthquake swarm in Northern California early Thursday was another round of recurring temblors in a seismically active ...

A powerful earthquake with a preliminary magnitude of 7.0 struck off the coast of Northern California late Thursday morning local time, according to the US Geological Survey.

Damage assessments are ongoing across California after a 7.0 magnitude earthquake struck earlier this morning. The earthquake's epicentre was about 68km off the coastal town of Ferndale, with ...

Scientists are sounding the alarm about an extraordinary ‘mega tsunami’ that could submerge multiple US states and drown ...

The California coast has been rocked by six earthquakes in less than a day. The United States Geological Survey (USGS) has detected three new earthquakes Thursday afternoon near Hayward and ...

The US Geological Survey (USGS) detected a 3.8 magnitude earthquake around 8am PT (11am ET) along the Mendocino Fracture Zone, a major geological feature located off the coast of northern California.

The San Francisco earthquake of 1906, which did cause a tsunami, is thought to have killed upwards of 3,000 people, some of whom died in fires that erupted after the powerful tremor.