As if there isn't enough trouble south of the border, an earthquake reported at 7.2 magnitude struck the region around Mexicali in upper Baja California around 3.40 p.m. today Pacific time.
Damage reports in the Mexicali region are just starting to come in.
The earthquake rattled buildings in Los Angeles and San Diego, but so far there are no reports of damage in Southern California.
About 20 million people felt the quake in Mexico, Southern California and southwest Arizona, according to the initial report in the Los Angeles Times.
Aftershocks are expected throughout the region.
Here's the current U.S. Geological Survey-Caltech seismic report.
Here's the Wikipedia entry on Mexicali. Mexicali is near the border about 100 miles east of San Diego.