Southern California faults are feeling the pressure

Seismologists are increasingly concerned that the 7.2 Mexicali temblor on April 4 placed more pressure on faults around the Southland, resulting in increased quake activity over the last three months.

There is growing concern among seismologists that the 7.2 Mexicali earthquake on April 4 placed more pressure on faults in Southern California, resulting in increased quake activity over the last three months.