Presentation Information
[9a-N104-4]Clarification of resistivity distribution around land/submarine active faults and insight into earthquake occurrence
〇Tada-nori Goto1 (1.Univ. Hyogo)
Keywords:
resistivity,active fault,seafloor
Recent advances in technology for measuring and processing electromagnetic (EM) fields on land and seafloor have dramatically progressed, achieving significant results in disaster prevention. Here, I review three-dimensional resistivity distributions around the Futagawa Fault (Kumamoto) and the Nankai Trough (off Miyazaki), with introductions of the field instruments and analysis techniques. These subsurface structures are considered to be formed by or to control the fault movements; integrated research on EM observation, physical properties of faults, and numerical simulations of rock fractures will be helpful for understanding the causes of earthquakes.