JpGU-AGU Joint Meeting 2017

Presentation information

[EJ] Poster

S (Solid Earth Sciences) » S-SS Seismology

[S-SS12] [EJ] Active faults and paleoseismology

Tue. May 23, 2017 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall HALL7)

convener:Mamoru Koarai(Earth Science course, College of Science, Ibaraki University), Nobuhiko Sugito(Faculty of Humanity and Environment, Hosei University), Nobuhisa Matsuta(Okayama University Graduate School of Education), Ken-ichi Yasue(Japan Atomic Energy Agency)

[SSS12-P10] Tectonic geomorphology of the northeastern Musashino Upland, central Japan

*Tatsuya Ishiyama1, Daisuke Hirouchi2 (1.Earthquake Research Institute, University of Tokyo, 2.Department of Geography, Faculty of Education, Shinshu University)

We present geomorphic evidence for active faulting and folding found in the northeastern Musashino Upland to define locations, distributions, and recent activity of underlying blind thrust faults. In this region, we recognized geomorphic evidence including pairs of east-facing fold scarps that deform middle to late Pleistocene fluvial terrace deposits. At several locations, these geomorphic scarps are underlain by west-dipping blind thrust faults.