Miao, WenpeiNiu, FenglinChen, Haichao2023-01-272023-01-272023Miao, Wenpei, Niu, Fenglin and Chen, Haichao. "Sharp Changes of Crustal Seismic Anisotropy Across the Central Tanlu Fault Zone in East China." <i>Geophysical Research Letters,</i> 50, no. 1 (2023) Wiley: https://doi.org/10.1029/2022GL099184.https://hdl.handle.net/1911/114253Both seismic and geodetic data suggested that the ∼120-km long Weifang segment of the Tanlu fault zone, a large-scale active strike-slip system at east China, is a seismic gap with no obvious along-strike shear motion at surface. Measuring crustal deformation around the segment is crucial to constrain stress/strain buildup and potential seismic risk at the fault. We measured crustal and upper mantle seismic anisotropy using P-to-S converted waves at the Moho (Pms) and core-mantle boundary (SKS) recorded by broadband arrays across the Weifang fault segment. The measured crustal anisotropy inside the fault zone shows a fast direction of ∼NNE, parallel to the fault orientation. Right east to the fault zone, the fast axis rotates by almost 90° to ESE. The crustal anisotropy within the fault zone could be caused by aligned microcracks and foliated minerals due to long-lasting shear motion inside the fault zone.engThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.Journal article2022-Miaohttps://doi.org/10.1029/2022GL099184