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At 02:49:21 GMT on March 25th 2020 a magnitude M7.5 earthquake struck to the east of the Kuril Islands, Russia (see map below). The earthquake occurred at a depth of 56.7 km and the NSW Pacific Tsunami Warning Center have said that there is no threat of a tsunami as sea-level readings from the nearest two deep ocean dart gauges confirm only small tsunami waves were generated.
The earthquake was recorded at seismic stations worldwide, including stations of the Irish National Seismic Network (INSN), see seismic waveforms below (select figure to enlarge).
Further information is available from the following sources:
On the 29th January 2020 at 07:27:40 GMT a magnitude M1.0 earthquake occurred offshore Co. Antrim, Northern Ireland. The earthquake located close to the epicentres of the M0.9 earthquake, 26th January 2020 and the M1.6 earthquake, 18th of December 2019. In the map below the epicentre of the M1.0 earthquake is indicated with a red marker. Major fault zones in and around Ireland are shown with black lines.