Incoming plate structure at the Japan Trench subduction zone revealed in densely spaced reflection seismic profiles
- Resource Type
- article
- Authors
- Yasuyuki Nakamura; Shuichi Kodaira; Gou Fujie; Mikiya Yamashita; Koichiro Obana; Seiichi Miura
- Source
- Progress in Earth and Planetary Science, Vol 10, Iss 1, Pp 1-21 (2023)
- Subject
- Japan Trench
Incoming structure
Sediment thickness
Normal faults
Subduction zone earthquake
Geography. Anthropology. Recreation
Geology
QE1-996.5
- Language
- English
- ISSN
- 2197-4284
Abstract The structure of the incoming plate is an important element that is often considered to be related to the occurrence of great earthquakes in subduction zones. In the Japan Trench, where the 2011 Tohoku earthquake occurred, we collected seismic profiles along survey lines separated by 2–8 km to examine the structural characteristics of the incoming Pacific plate in detail. The average thickness of the incoming sediments was