Location: Bonin Islands, Japan region Period: 21 Dec 2010 17:38:08 - 26 Dec 2010 04:53:46 (4 days 11 hours 15 minutes) Volcanoes in 100km radius: None Earthquakes: 81 3 swarms found nearby. 2010 PS20101221.1(33.8km) 21 Dec 1 day 21 hours 52 earthquakes PS20101225.2(40.9km) 24 Dec 1 day 15 hours 8 earthquakes 2011 PS20110124.1(12.0km) 23 Jan 14 hours 5 earthquakes