Location: Western Montana Period: 3 Feb 2019 17:11:17 - 5 Feb 2019 04:43:10 (1 day 11 hours 31 minutes) Volcanoes in 100km radius: None Earthquakes: 30 5 swarms found nearby. 2017 S20170706.1(0.6km) 6 Jul 9 days 16 hours 179 earthquakes S20170724.1(2.5km) 23 Jul 4 days 1 hours 87 earthquakes S20170926.2(2.1km) 25 Sep 5 days 10 hours 76 earthquakes S20171002.1(6.6km) 1 Oct 6 days 5 hours 61 earthquakes S20171015.1(0.9km) 14 Oct 4 days 23 hours 56 earthquakes