L.A. City Council voted Tuesday to adopt a strategy that will help the city delay SB 79 upzoning by adding light density ...

The Cascadia Subduction Zone is unusually quiet for a megathrust fault. Spanning more than 600 miles from Canada to California, the fault marks the convergence of the Juan de Fuca and North American ...

The Mendocino Triple Junction off the coast of Northern California is the point where three tectonic plates meet. A new study reveals at least five moving pieces deep below the Earth's surface make up ...

(a) Photo and sketch of a fault zone in core sample 316-C0007D-29R. The yellow boxes show where the close-up thin-section images in (b) and (c) were taken. The main shear zone (MSZ) contains very fine ...

For decades, the end-stage life of a subduction zone existed only in theory. Now, for the first time in geologic history, scientists are bearing witness to the Juan de Fuca Plate tearing apart and ...

The Pacific Ring of Fire is a vast, horseshoe-shaped belt around the Pacific Ocean that is the world's most seismically and volcanically active zone. This region contains roughly 75% of the world’s ...

Add Yahoo as a preferred source to see more of our stories on Google. New research reveals the Cascadia and San Andreas faults may be linked, with quakes on one triggering the other. (CREDIT: ...

Researchers have discovered evidence of “partial synchronization” of two of the world’s most famous fault lines—the northern San Andreas Fault and Cascadia Subduction Zone. The relationship between ...

Julia Shumway / Oregon Capital Chronicle The so-called “Big One” or Cascadia Subduction Zone earthquake expected to trigger disruptive quakes throughout the West Coast could cause more damage than ...

The threat of a 9.0-magnitude earthquake along the Cascadia Subduction Zone has hung over the Pacific Northwest for decades. Seismologists and emergency managers say “The Big One” could be one of the ...

The so-called “Big One” or Cascadia Subduction Zone earthquake expected to trigger disruptive quakes throughout the West Coast could cause more damage than previously estimated if it sets off quakes ...

Scientists have captured an unprecedented glimpse of a subduction zone in the act of dying, where the Juan de Fuca and Explorer plates are breaking apart beneath North America off the coast of ...