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On the 20th of December 2019 at 09:53:44 local time, a M1.4 earthquake occurred in the Irish Sea approximately 90km north-east of Dublin and 40km south of the Isle of Man. The epicentre location is shown in the map below. This event follows a M2.5 earthquake in the Irish Sea from the 15th of December 2019. The M1.4 earthquake is most likely an aftershock of the recent M2.5 earthquake.
On the 18th of December 2019 at 20:22:14 UTC, a M1.6 earthquake occurred offshore Co. Antrim, Northern Ireland. The earthquake located approximately 10km east of both Ballycastle and Rathlin Island, and at a depth of 1km. Since 2010, the Irish National Seismic Network (INSN) has previously recorded 5 earthquakes off the Antrim Coast, the largest of which was an M1.6 earthquake occurring on the 26th of October 2013.