Characteristics of normal faults in coastal area; Case study in the Kawaminami Fault, southern Kyusyu

Ikuta, Masafumi; Niwa, Masakazu   ; Takatori, Ryoichi; Kurosawa, Hideki*; Kosaka, Hideki*

Although there are several normal faults in coastal area on the Pacific side, normal faulting triggered by a large earthquake in plate convergence has never been reported until the earthquake in Fukushima, April 11, 2011. Therefore more case studies focused on normal faults are needed to assess the risk of fault activity in coastal areas. As such case study, we are doing geological and topographical surveys in the Kawaminami Fault, lying along the northern margin of the Miyazaki Plain.