The relationship between the sites means an earthquake in one zone can trigger an earthquake in the other in a phenomenon ...

OSU researchers find Cascadia Subduction Zone and San Andreas Fault may be synchronized — with the potential for quakes on ...

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 ...

Earthquakes have long been associated with fault lines, jagged edges where tectonic plates meet and collide. Several studies explain how these seismic activities are not limited to these boundaries.

HOLLYWOOD (KABC) -- A new finalized version of a California earthquake map shows an active fault line running through Hollywood, raising questions about the Millennium Hollywood development project.

There's a sleeping fault line that runs along the border between Canada and Alaska. The line has been dormant for millions of years as best scientists can tell. But new research suggests it could be ...

This discovery could really shake up the Big Apple. New York City was rattled harder than some surrounding areas during last April’s northeast earthquake because of a dangerous, newly discovered fault ...

A megaquake in the Pacific Northwest could trigger a large earthquake along California's San Andreas Fault, creating an unprecedented catastrophe up and down the Pacific Coast, new research shows.

Major faults like the San Andreas strike fear of producing devastating earthquakes. But scientists have found that little-known 'branch' faults, minor faults that stem from larger ones, could release ...