Test mode of operation network of monitoring subsoil radon in the south of Sakhalin

¹ Kamchatka Branch, Geophysical Survey, Russian Academy of Sciences, Petropavlovsk - Kamchatsky, Russia
² Kamchatka State University named after Vitus Bering, Petropavlovsk - Kamchatsky, Russia
³ Sakhalin Branch, Geophysical Survey, Russian Academy of Sciences, Yuzhno - Sakhalinsk, Russia
⁴ Institute of Volcanology and Seismology, Far East Branch, Russian Academy of Sciences, Petropavlovsk - Kamchatsky, Russia
⁵ Institute of Marine Geology and Geophysics, Far East Branch, Russian Academy of Sciences, Yuzhno - Sakhalinsk, Russia

^* Corresponding author: ice@emsd.ru

Abstract

Radon monitoring in the literature is recognized as a promising method for the prediction of earthquakes. In the last decade, the promise of the radon method for predicting subduction earthquakes has been convincingly demonstrated on Kamchatka. The results obtained on the Kamchatka, give reason to hope for the detection of predictive anomalies in the radon field and for weaker, but not less dangerous, small-focus earthquakes on the Sakhalin Island. The southern part of Sakhalin Island is a region of high seismic hazard. On Sakhalin Island, in a test mode, a network of three radon monitoring stations in the subsoil air is launched using the forced convection method to search for earthquake precursors. Based on the literature data, it is assumed that the effectiveness of radon monitoring near the focal zone of small-focus earthquakes on Sakhalin Island will be significantly higher compared to the conditions of the subduction zone in Kamchatka. Data from the network of radon monitoring stations can be used as an additional parameter to substantiate the conclusions on possible scenarios for the evolution of the seismic process in the south of Sakhalin.