Most Californians are familiar with earthquakes. But researchers say the state faces an overlooked threat: "supershear" earthquakes that move so fast they outrun their own seismic waves. Subscribe to ...

Not all earthquake faults behave the same. Some stick and snap, causing earthquakes. Others move slowly over time. For years, the leading explanation for slow-moving faults has been that high-pressure ...

Supershear earthquakes, moving faster than seismic waves, could cause catastrophic shaking across California. USC researchers warn that many faults capable of magnitude 7 quakes might produce these ...

One of the worst earthquakes in European history ripped through Portugal in 1755, causing a tsunami, fires and shaking that killed tens of thousands of people and caused widespread destruction.

It’s become another distant memory. The Oct. 17, 1989, earthquake demolished much of downtown Santa Cruz, killing three people and destroying more than 30 buildings while wreaking destruction ...

A new study measuring vibration frequencies throughout the Great Pyramid revealed how it has been able to withstand severe ...