Location: 166 km SE of Katsuura, Japan Period: 20 Jan 2005 14:16:21 - 21 Jan 2005 18:10:35 (1 day 3 hours 54 minutes) Volcanoes in 100km radius: None Earthquakes: 8 2 swarms found nearby. 2005 PS20050119.1(22.0km) 19 Jan 10 hours 6 earthquakes 2016 PS20160923.1(52.7km) 22 Sep 18 hours 8 earthquakes