Location: 3km NNW of Palomar Observatory, CA Period: 8 Jan 2022 21:12:38 - 9 Jan 2022 15:57:52 (18 hours 45 minutes) Volcanoes in 100km radius: None Earthquakes: 37 4 swarms found nearby. 2019 S20190328.1(14.4km) 27 Mar 5 days 20 hours 79 earthquakes S20190905.1(3.6km) 4 Sep 4 days 3 hours 56 earthquakes 2021 S20211223.1(0.3km) 22 Dec 1 day 1 hours 46 earthquakes S20211231.1(0.8km) 30 Dec 4 days 1 hours 63 earthquakes