Earthquakes usually occur along fracture zones in Earth's crust, where large tectonic plates slide past one another and become locked. Stress builds up over long periods and is suddenly released in the form of an earthquake.

Personally, I’ve never experienced an earthquake. I’ve only been in parts of the world where they occur for maybe a cumulative two weeks of my life, and have yet to catch one. They seem both terrifying and routine for a lot of people, like in this ...

SAN DIEGO COUNTY, Calif. — USGS reported a 3.6 magnitude earthquake in Borrego Springs on Thursday at 5:16 p.m. that shook parts of northern San Diego County. On April 14, a magnitude 5.2 earthquake was recorded about 2.5 miles south of Julian.

A small earthquake was reported near Borrego Springs Wednesday morning. The 3.2-magnitude earthquake struck at 9:30 a.m. about 70 miles northeast of downtown San Diego with a depth of 2.3 miles, the United States Geological Survey reported. Stream San ...