A hidden chunk of an ancient tectonic plate is stuck to the Pacific Ocean floor and sliding under North America, complicating ...

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

Invisible earthquakes are revealing a hidden tectonic puzzle beneath California’s most dangerous fault zone.

Memorizing seven continents feels settled, like learning the alphabet. A new study argues the ground rules are less tidy.

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

NORFOLK, Va. — Fault lines are fractures or breaks in the Earth's crust where tectonic plates move past each other, often resulting in earthquakes. These geological features are classified into three ...

Spain and Portugal are taking a turn. The Iberian Peninsula sits on a boundary between two large tectonic plates that are ...

Ground fissures and tectonic faults represent critical structural features within sedimentary basins, where the interplay of regional stress fields, depositional environments and, at times, human ...

The 4.8-magnitude earthquake on the East Coast Friday came from ancient dormant faults. The faults formed when two continents collided about 500 million years ago, creating the Appalachians and ...

Researchers say ubiquitous evidence for ongoing geological carbon sequestration in mantle rocks in the creeping sections of the San Andreas Fault is one underlying cause of aseismic creep along a ...

The Carrizo Plains provides good visibility of the San Andreas Fault in southern California. On Earth, the motion along faults is driven by plate tectonics, powered by convection of the planet’s ...