A substantial seismic fault went unnoticed until geologists used aircraft equipped with lidar to map geological features obscured by forest cover. The ongoing search has revealed other faults in ...

The Concord Fault in the Bay Area is not where scientists thought. A new 4.4-mile segment is shifting under homes, prompting plans for an Earthquake Fault Zone. The fault could cause earthquakes as ...

A series of newly discovered faults on the north and south flanks of Mount Hood are capable of producing a massive earthquake, researchers said Monday, noting that large swaths of the region could ...

MOUNT VERNON, Wash. — A 2.9 magnitude earthquake was recorded early Tuesday morning near Mount Vernon. The shakes were recorded around 1:59 a.m. Tuesday about 3 kilometers west of Mount Vernon ...

Two researchers discovered active fault lines on Mount Hood that could possibly trigger a magnitude 7.2 earthquake.

Magma stores are recharging inside Mount St. Helens, setting off a swarm of small earthquakes since last month, according to the U.S. Geological Survey. Since the catastrophic eruption of May 18 ...

A 2.9 magnitude earthquake was recorded early Tuesday morning near Mount Vernon. The shakes were recorded around 1:59 a.m. Tuesday about 3 kilometers west of Mount Vernon, according to the Pacific ...

“Based on similarity to past seismic sequences near Mount Hood and on past studies of seismicity in the Mount Hood area, we infer that these earthquakes are occurring on tectonic faults and are ...

TOKYO -- Japan's Mount Fuji may be sitting on a large, active fault that could trigger a magnitude-7 earthquake, changing the shape of the mountain and devastating nearby communities, the ...

Researchers have discovered active fault lines on Mt. Hood that could potentially trigger a 7.2 magnitude earthquake, devastating communities and infrastructure as far west as Portland.