Using RSQSim to Determine Seismic Sequence in Eastern Taiwan Fault System

被引:0
作者
Chia-Cheng, Hsu [1 ]
Hung-Yu, Wu [1 ]
机构
[1] Natl Cheng Kung Univ, Dept Resource Engn, Tainan, Taiwan
关键词
EARTHQUAKES; DEFORMATION; INSIGHTS; REGION; SHEAR; MODEL;
D O I
10.1785/0220240144
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Understanding the spatial and temporal patterns of seismic activity, along with fault interactions in Taiwan, is essential for earthquake hazard assessment and advancing knowledge of regional tectonics. This study employs the Rate and State Earthquake Simulator (RSQSim) to simulate the eastern Taiwan fault system, integrating fault geometry from the multidisciplinary Taiwan Earthquake Model. We applied long-term simulations spanning 400,000 yr to conduct earthquake sequences and recurrence intervals on five distinct faults in eastern Taiwan: Milun fault, Longitudinal Valley fault, Central Range structure, Luyeh fault, and Taimali Coastline structure. The simulated earthquake catalogs are compared against the historical record in terms of seismicity, frequency-magnitude statistics, and recurrence patterns. The model reasonably reproduces key observational constraints, including spatial patterns, magnitude probabilities fitting a gamma distribution, and periods of quiescence resulting from fault interactions. Overall, the results demonstrate RSQSim's potential for physics-based seismic hazard modeling and provide insights into regional seismotectonic processes in eastern Taiwan for constructing sustainable cities and communities.
引用
收藏
页码:207 / 218
页数:12
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