Location: 2 km NE of Ojiya, Japan Period: 23 Oct 2004 08:56:00 - 24 Oct 2004 21:05:10 (1 day 12 hours 9 minutes) Volcanoes in 100km radius: Numazawa(76km) Earthquakes: 23 1 swarms found nearby. 2004 S20041024.1(67.7km) 23 Oct 1 day 6 hours 27 earthquakes