A 5.2 magnitude earthquake struck northeast of San Diego at about 10:08 a.m. on Monday. Shaking was felt as far away as Los ...

The quake centered near San Diego, but shockwaves were felt as far as Los Angeles more than 100 miles away, according to the ...

A common mineral, α-alumina, found abundantly in Earth's crust, may have played a critical role in initiating the chemical ...