A new paper explains how the properties of fault rocks and geologic events that took place over a billion years ago could ...

While not a household name like the San Andreas, the Elsinore fault is part of a larger seismic zone that experts fear and believe more people should know about.

However, the state has several other fault lines that can perpetuate earthquakes ... Diego County to the northern end of the Santa Ana mountains near Los Angeles," said The San Diego Union ...

That would mean the Los Angeles River, which runs from the mountains to the ocean, would start running backward around where the fault lifted the land. “If you uplift the downstream part of the ...

The researchers also collected rock samples from geologic formations corresponding to different parts of the ancient fault and mountain system. The researchers used computer models to see which ...

At 4.1 magnitude near Greenback, the May 10 quake was large for our area. Experts look back on the last earthquakes to ...

About 240 miles long, Utah's Wasatch Fault stretches along the western edge of the Wasatch Mountains from southern Idaho to central Utah, running through Salt Lake City and the state's other ...