Thanks to Caroline (@thevixy) for this link.
http://earthquake.usgs.gov/eqcenter/recenteqsus/Quakes/ci10370141.php
It occurred at 7:49:46 pm local time, 1 mile south of San Bernardino (34.113 N, 117.294 W). I was sitting on a couch at home in Ontario and felt a quick jolt.