Location: Utah Period: 27 Dec 2003 00:39:24 - 28 Dec 2003 03:55:58 (1 day 3 hours 16 minutes) Volcanoes in 100km radius: Black Rock Desert(89km) Earthquakes: 34 1 swarms found nearby. 2004 S20040318.1(1.9km) 18 Mar 2 days 14 hours 67 earthquakes