Los Angeles Times - Increased quake activity predicted for California faults
The Los Angeles Times reports: "There is growing concern among seismologists that the 7.2 Mexicali earthquake April 4 placed more pressure on Southern California's faults, resulting in increased quake activity over the last three months. The latest evidence was Wednesday's magnitude 5.4 Collins Valley earthquake that rolled from the mountains south of Palm Springs, leaving no major damage but rattling nerves throughout the region."