A 7.2 earthquake epicentered near Mexicali rocked all of Southern California today, setting high rise buildings in Los Angeles and San Diego rocking back and forth.
Preliminary USGS information indicated the epicenter was 19 miles southeast of Mexicali, at an area that has been rocking with magnitude 3.0 quakes all week.
A swarm of small temblors struck the epicenter area late Saturday and early Sunday.
Phone calls to El Centro, about 40 miles northwest of the epicenter, were met with busy circuits. A police dispatcher in Yuma, Ariz. said the quake was very strong there, but no damage was reported.