Two-dimensional resistivity structure of the fault associated with the 2000 Western Tottori earthquake

• DOI: 10.1186/bf03352069
• Publication Date: 2014-08-15T03:57:36Z
• Authors: Satoru Yamaguchi; Hideki Murakami; Hisanori Iwamoto; Kazuhiro Takemoto; Kazuya Kitada; Ichiro Shiozaki; Naoto Oshiman; Shigehiro Katoh
• Keywords: Earthquake prediction

Abstract Two-dimensional resistivity surveys were carried out along two profiles that laid across earthquake faults initiated by the 2000 Western Tottori earthquake. One profile was located 7 m from a trenching pit, thereby enabling direct comparison of cross-section with geological and, subsequently, precise interpretation structure. Features found to correspond fairly well cross-section. A clear boundary between resistive and conductive zones matches fault survey. Variations in depend primarily on development fractures. Two types found: (1) deep-rooted conductor corresponds an (2) indistinct spatially localized fracture attributed landslides collapse. few weak match discrete characterize our model. This feature is different cross-sections at Nojima Ogura Faults appeared time 1995 Hyogo-ken Nanbu earthquake; these latter are characterized distinct single zones. Based geomorphological, geological, seismological evidence, can be classified as immature fault. In contrast, have been active for least entire Quaternary period. We conclude difference stages reflected their structures.