Location: 7 km SW of Nephi, Utah Period: 18 Mar 2004 12:45:02 - 21 Mar 2004 02:48:49 (2 days 14 hours 3 minutes) Volcanoes in 100km radius: Black Rock Desert(91km) Earthquakes: 67 1 swarms found nearby. 2003 S20031227.1(1.9km) 27 Dec 1 day 3 hours 34 earthquakes