Large subduction-zone earthquakes leave scars on the continental slope in the deep sea.

SEATTLE — Newly-released research led by the University of Washington (UW) showed that a feature scientists hypothesized was present along the Cascadia Subduction Zone is missing in places. What does ...

Add Yahoo as a preferred source to see more of our stories on Google. Workers check damage to Interstate 880 in Oakland after it collapsed during the Loma Prieta earthquake in October 1989. (Paul ...

Scientists are uncovering a hidden and surprisingly complex earthquake zone beneath Northern California by tracking swarms of ...

Northern California’s coast keeps you on alert, even on quiet days. Offshore, three tectonic plates meet near Humboldt County ...

Just off the coast of the Pacific Northwest is the Cascadia Subduction Zone, a complex collection of earthquake faults created by one tectonic plate pushing its way under another. Every 400-600 years, ...

A major earthquake along a West Coast fault could have catastrophic consequences across coastal Washington, Oregon and northern California. Running offshore from northern California to British ...

During an earthquake scenario with the highest level of subsidence, or land sink, the area at risk of flooding would expand by 116 square miles. Among the areas at risk after a megaquake along the ...

(a) Geological units and earthquake distribution of an oceanic subduction zone. The orange shadow beneath the volcanic arc represents partially molten areas and magma channels. (b) Thermal structure ...

Last week, about 60 miles off the coast near Ferndale, California, the tectonic plates shifted under the Pacific Ocean, sending seismic waves through the ocean floor that radiated onto land and were ...