实皆断裂的动态分段性研究

Mingqi Liu1*†, Binhao Wang1, Sezim E. Guvercin1, Zhen Li2‡, Teng Wang2§, Chuanjin Liu3, Lingyun Ji3, Sylvain Barbot1 The structurally simple Sagaing fault, which ruptured during the 2025 moment magnitude 7.7 Mandalay earthquake, exhibits clear dynamic segmentation despite lacking major geometric complexities. Using physics-based seismic cycle simulations, we tested the hypothesis that dynamic segmentation on the Sagaing fault is influenced by a northward increase in long-term slip rates from 18 to 28 millimeter/year. Models incorporating geodetically constrained long-term slip rates reproduced the rupture extent of historical earthquakes and the geodetically inferred slip distribution of the 2025 mainshock. …