YORBA LINDA (CBSLA) — A 3.5-magnitude earthquake struck near Yorba Linda Monday afternoon.
According to the U.S. Geological Survey, the temblor was centered 1.86 miles southwest of Yorba Linda at a depth of 5.46 miles.
The first quake happened at about 3:18 p.m. and was followed at 3:20 p.m. by a 2.0-magnitude aftershock.
According to seismologist Dr. Lucy Jones, the quakes were not on any of the big mapped faults.
If you felt "2 sharp jolts", you were feeling the P and S waves. The time between them tells you how far you are from the hypocenter. Distance = 5 miles x (S-P time). If they were 1 seconds apart, you are 5 miles away – including depth. Since it was 5 miles deep, you'd be on it.
— Dr. Lucy Jones (@DrLucyJones) August 3, 2020
There were no immediate reports of injuries or damage.