Location: 9 km SE of Ratliff City, Oklahoma Period: 22 Mar 2021 14:44:03 - 29 Mar 2021 16:00:09 (7 days 1 hour 16 minutes) Volcanoes in 100km radius: None Earthquakes: 79 2 swarms found nearby. 2021 S20210222.1(6.1km) 21 Feb 14 days 9 hours 165 earthquakes 2026 S20260228.1(2.7km) 27 Feb 2 days 23 hours 51 earthquakes