Reaction of the Underground Water to Seismic Impact from Industrial Explosions

A comprehensive monitoring at the territory of Korobkovskoe and Lebedinskoe iron ore deposits Kursk Magnetic Anomaly (KMA), which are developed using explosive technologies, has been carried out since July 2019 near town Gubkin (Belgorod Region, Russia). unique database responses system “reservoir–well” to short-delay explosions in a mine quarry formed with sampling rate 200 Hz on basis synchronous seismic, barometric, precision hydrogeological measurements. The research object is groundwater zones exogenous weathering tectonic fracturing ore-crystalline basement Archean-Proterozoic. Processing mass made it possible indicate two types water level response seismic impact. In addition coseismic variations pore pressure for first time postseismic effects were established during exploitation deposits. observed may have caused by mechanisms. mechanism represented skin effect—a change permeability fluid-saturated reservoir near-wellbore space. second one renewal existing fracture systems formation technogenic fractures lithological-stratigraphic contacts faults interface between weathered relatively monolithic rocks. subsequent decrease well associated filling fractured water.