Location: 6km NE of Yorba Linda, CA Period: 3 Sep 2002 01:50:57 - 4 Sep 2002 20:44:11 (1 day 18 hours 53 minutes) Volcanoes in 100km radius: None Earthquakes: 39 3 swarms found nearby. 2008 S20080729.2(4.2km) 29 Jul 4 days 0 hours 128 earthquakes 2012 S20120808.1(1.5km) 8 Aug 1 day 13 hours 41 earthquakes 2014 S20140329.1(14.7km) 29 Mar 5 days 7 hours 214 earthquakes