https://scholars.lib.ntu.edu.tw/handle/123456789/636073
標題: | Nearby fault interaction within the double-vergence suture in eastern Taiwan during the 2022 Chihshang earthquake sequence | 作者: | Tang, Chi Hsien Lin, Yunung Nina Tung, Hsin YU WANG Lee, Shiann Jong Hsu, Ya Ju J. BRUCE H. SHYU Kuo, Yu-Ting Chen, Horng Yue |
公開日期: | 1-十二月-2023 | 卷: | 4 | 期: | 1 | 來源出版物: | Communications Earth and Environment | 摘要: | Nearby faults interact through stress changes induced by fault slip and viscoelastic flow. The process is, however, often elusive and can be geometry-dependent and time-variant. Here, we combine geodetic and field observations to characterize the interaction of two head-to-head, conjugate faults in eastern Taiwan during the 2022 Chihshang earthquake sequence. We map the coseismic slip on the Central Range fault and dynamically-triggered shallow slip on the Longitudinal Valley fault, which has been creeping interseismically. Overlapping of seismic and aseismic slip suggests that the Longitudinal Valley fault is capable of hosting a variety of distinct slip behaviors. Moreover, substantial slip on the Central Range fault suppresses Coulomb stress on the Longitudinal Valley fault, and vice versa, resulting in seismic bursts in an out-of-phase pattern on the two faults as seen in the hundred-year historical records. Such fault interaction implies the need for time-dependent seismic hazard reassessment for the complex fault system. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/636073 | ISSN: | 2662-4435 | DOI: | 10.1038/s43247-023-00994-0 |
顯示於: | 地質科學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。