2025年堪察加半岛大地震序列的简单单侧破裂

Simple unilateral rupture of the great Mw 8.8 2025 Kamchatka earthquake Chengli Liu1,2*, Yefei Bai3,4,5*, Thorne Lay6, Ping He1, Yangmao Wen7, Xiong Xiong1,2, Tuncay Taymaz8,9 To understand the rupture process of the 2025 Mw 8.8 Kamchatka earthquake, we first constrained the space-time slip distribution using teleseismic body and surface wave observations and InSAR (Interferometric Synthetic Aperture Radar) ground displacement measures, considering planar faulting and curved-plate interface faulting. We then performed forward tsunami calculations to validate our seismogeodetic slip models. The simulations for our preferred model with a curved plate boundary more successfully reproduced the observed tsunami timing and waveforms, as well as coseismic global navigation satellite system (GNSS)–sensed displacements, confirming the placement and strength of the associated rupture model. …