2024-03-28T10:28:17Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02005284
2022-10-31T02:36:43Z
1642837622505:1642837957109:1642837975146
1642838403551:1642838406414
地震分布から求めた南西諸島における沈み込んだフィリピン海プレートの形状
Determination of subducted Philippine Sea Plate in the Nansei islands deduced from hypocenter data
中村, 衛
兼城, 昇司
Nakamura, Mamoru
Kaneshiro, Shoji
We calculated the contour of depth-distribution of hypocenters in the Nansei islands, southwest of Japan. The contours correspond to the subducted Philippine Sea plate. The contours were computed using the EHB hypocenters catalogue, whose hypocenter parameters were calculated using the global velocity heterogeneity and the depth-phases. The resulting showed the northeastward dipping Philippine Sea plate. which is steeper than the plate models computed using other hypocenters catalogues. This suggests that the depths of hypocenters by the EHB catalogue are deeper than those by other catalogues in the Nansei islands. Axes of the Okinawa Trough are located at the depth of 100 to 150 km in the central and southern Nansei islands. However, those are located at the depth of 150 km and there is no plate under the axes in the west of Kyushu.
紀要論文
http://purl.org/coar/resource_type/c_6501
琉球大学理学部
2000-09
VoR
http://hdl.handle.net/20.500.12000/15347
0286-9640
AN00250774
琉球大学理学部紀要
Bulletin of the College of Science. University of the Ryukyus
70
82
73
jpn
open access