Cryoseismology of the severnaya zemlya archipelago – the first results of permanent monitoring

We present the first results of local seismicity monitoring of the Severnaya Zemlya archipelago for the end of 2016 to 2023, recorded by a single permanent seismic station installed on Bolshevik Island. 73 local seismic events with P- and S-phases have been identified. The possibility of their sorting (earthquake or icequake) by comparing their waveforms and time-frequency analysis with regional earthquakes that occurred in the archipelago area is considered. The spatial and temporal sequence and migration rate of the events show that glacial-type events can be the result of stress discharge in glaciers under the impact of shallow crustal earthquakes within a radius of ~30 km. It is shown how, given the difficulty of deploying a seismic network, even a single permanent seismic station can provide useful information on glacial and crustal earthquakes.