6:15 PM - 7:30 PM
[SEM33-P07] Dense AMT observations across the Japan Median Tectonic Line Izumi fault zone
Keywords:the Japan Median Tectonic Line Fault Zone, magnetotelluric, damage zone, shallow resistivity structure
In order to delineate fine subsurface structure around the fault, we carried out audio-frequency magnetotellurics (AMT) measurements at 38 sites along a 5km profile perpendicular to the Gojodani and Shobudani faults in November, 2014. MT responses of a frequency band of 10,400-0.35 Hz were obtained using remote reference processing (Gamble et al., 1979). As a result, relatively good quality MT responses were obtained at most sites.
In this presentation, we will show the final MT response functions at each site and report a preliminarily results of two-dimensional inversions.