The white lines indicate faults recognized by the USGS. The red line is the newly discovered surface trace connecting the southern end of the Hayward Fault to the Calaveras Fault, once thought to ...

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

Researchers from UNC-Chapel Hill, USGS, and global teams designed high-resolution maps that exposed ... surface faults, and satellite images to find new, lethal fault lines. Most of the newly ...

An earthquake near Greenback, Tennessee, shook East Tennessee early Saturday morning. It was the largest quake in the region ...