Seismologists Discover Hidden Faults Beneath One of the U.S.'s Biggest Earthquake Hotspots ...

Earth's surface is covered by more than a dozen tectonic plates, and in subduction zones around the world—including the ...

Parts of ancient Earth may have formed continents and recycled crust through subduction far earlier than previously thought.

The model also proved the theorized existence of the Pioneer fragment, a remnant of the ancient Farrallon plate that used to traverse the California coastline that has not all but disappeared. This ...

A newly discovered fault complexity beneath America's most active earthquake zone raises the possibility that a major seismic ...

A newly discovered fault complexity beneath America's most active earthquake zone raises the possibility that a major seismic ...

The North American craton actually dips near the Rockies rather than forming a sharp vertical step as previously believed.

By tracking swarms of very small earthquakes, seismologists are getting a new picture of the complex region where the San ...

(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 ...

At the Cascadia subduction zone in the Pacific Northwest, one tectonic plate is moving underneath another. New experimental work at UC Davis shows how rocks on faults deep in the Earth can cement ...

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 ...