Scientists discover ultra-weak faults near the 7.2 magnitude earthquake in Haiti that continued to slip for weeks.

Below California’s famed beaches, mountains and metropolitan areas lies a sinister web of earthquake faults — some so infamous that their names are burned into the state’s collective consciousness.

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 ...

We’re on shakier ground than previously thought. Canadian scientists have warned that an overlooked fault line could unleash catastrophic earthquakes across North America — disrupting infrastructure, ...

California’s most dangerous faults are not only defined by the headline grabbing magnitude 7 shocks that topple freeways and ...

In earthquake country, the meandering paths of quake faults easily get seared into memory in the same way as a California freeway map. An earthquake fault is a fracture in the ground between two ...

Safety mechanisms designed to handle rare events can become unreliable under sustained or intense fault conditions.

Drop. Cover. Hold on. That’s the three-part jingle every Californian learns to stay safe in earthquake country. Scientists forecast a more than 99% chance that earthquakes of 6.7 magnitude or larger ...