山崎断層の塩田鉱泉周辺の地下水について

Abstract

We have maintained that Cl concentration at Shiota mineral spring along the Yamasakifault in Hyogo Pref. Should give information useful for earthquake occurrences near the Yama-saki fault. This time we carried out the survey of groundwater in Yumesaki area which includesShiota mineral spring and crosses two active faults, in order to know how large is the regionwhere the seismicity along the Yamasaki fault has some effect on groundwater. Distributionof water head, pH, and Cl concentration of the groundwater had close relation to these activefaults. But we could not detect that water level and Cl concentration of the ground-water changed in relation to two earthquakes which occurred during the survey though Clconcentration at Shiota mineral spring changed in relation to these earthquakes.