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 new study reveals a 15% risk of a mega-tsunami hitting the US within 50 years. Triggered by the Cascadia Subduction Zone, ...

The risk of a devastating mega-tsunami from the Cascadia Subduction Zone highlights the need for improved evacuation plans.

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

US Pacific Coast faces potential devastation from a mega-tsunami triggered by a major earthquake in the Cascadia Subduction ...

A new study from Virginia Tech, published in the Proceedings of the National Academy of Sciences, estimates a 15% chance of a ...

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

Since Thursday, at least 131 earthquakes have been recorded — as small as magnitude 0.2 and as big as magnitude 4 — in the ...

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.

Experts have issued an urgent warning regarding a supposed upcoming earthquake known as 'The Big One'. Scientists explained that the earthquake could have a magnitude of around 7.7 on the Richter ...

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 ...