USGS: A minor earthquake occurred at 8:47:29 AM (PDT) on Sunday, October 18, 2009. The magnitude 3.3 event occurred 7 km (4 miles) S of Spring Garden, CA. The hypocentral depth is 3 km ( 2 miles).
I’ve lived in LA for 60 years. A 3.3 is chump change.
There are literally dozens of those each day in CA.
FRegards,