Location: 2km NE of Yorba Linda, CA Period: 8 Aug 2012 06:23:34 - 9 Aug 2012 20:11:47 (1 day 13 hours 48 minutes) Volcanoes in 100km radius: None Earthquakes: 41 3 swarms found nearby. 2002 S20020903.1(1.5km) 3 Sep 1 day 18 hours 39 earthquakes 2008 S20080729.2(5.7km) 29 Jul 4 days 0 hours 128 earthquakes 2014 S20140329.1(14.4km) 29 Mar 5 days 7 hours 214 earthquakes