Location: 11 km ESE of East Foothills, California Period: 29 Mar 2016 19:55:52 - 30 Mar 2016 04:27:42 (8 hours 31 minutes) Volcanoes in 100km radius: None Earthquakes: 24 2 swarms found nearby. 2007 S20071031.1(11.5km) 31 Oct 17 days 2 hours 285 earthquakes 2022 S20221026.2(4.8km) 25 Oct 2 days 7 hours 30 earthquakes