DOI: 10.6084/m9.figshare.30472607
title: Supplementary Datasets for "Deciphering Stress Perturbations throughout the 2025 Mw7.1 Dingri, Southern Xizang Earthquake"

description: README: 2025 Mw7.1 Southern Xizang Dingri Earthquake Datasets===================================<br>This directory contains geodetic and seismological datasets used in the analysis of the 2025 Mw 7.1 Dingri, Southern Xizang earthquake.The files are organized by data type and purpose, as detailed below.<br><br>------------------------------------------------------------1. Afterslip Model------------------------------------------------------------Folder: Afterslip/Model result describing the distribution of postseismic afterslip following the 2025 Mw 7.1 Dingri earthquake.The model quantifies fault‐after‐slip derived from early Sentinel-1 observations.<br>afterslip_dingri.inv — Afterslip inversion result file.Each row represents a rectangular fault patch with geometric and slip parameters written in the following order:X(m) Y(m) Z(m) Length(m) Width(m) Dip(°) Strike(°) Us(cm) Ud(cm) Un(cm)where Us, Ud, and Un denote strike-slip, dip-slip, and tensile components, respectively.The model is defined in a local fault-relative coordinate system with the origin referenced to [87.464397° E, 28.509839° N].<br>------------------------------------------------------------2. Back Projection------------------------------------------------------------Folder: Back_Projection/High-frequency teleseismic back-projection results used to resolve the rupture directivity and energy radiation.<br>- Au.dat : Back-projection result using Australian stations (Au network)- Eu.dat : Back-projection result using European stations (Eu network)<br>------------------------------------------------------------3. Coseismic Deformation------------------------------------------------------------Folder: Coseismic_deformation/InSAR and optical pixel-offset datasets used to model the coseismic displacement field.<br>- ALOS2_descending_20241015_20250107_InSAR.txt : L-band ALOS-2 descending interferogram (Oct 15 2024 – Jan 7 2025)- ALOS2_descending_20241015_20250107_POT.txt : Pixel offset tracking result for the same ALOS-2 pair- Sentinel1_ascending_20250105_20250117_InSAR.txt : C-band Sentinel-1 ascending track interferogram- Sentinel1_ascending_20250105_20250117_POT.txt : C-band Sentinel-1 ascending track pixel offset data- Sentinel1_descending_20241227_20250108_InSAR.txt : C-band Sentinel-1 descending track interferogram- Sentinel1_descending_20241227_20250108_POT.txt : C-band Sentinel-1 descending track pixel offset data- Sentinel1_descending_20250101_20250113_InSAR.txt : C-band Sentinel-1 descending track interferogram- Sentinel1_descending_20250101_20250113_POT.txt : C-band Sentinel-1 descending track pixel offset data<br>------------------------------------------------------------4. Fault Trace------------------------------------------------------------Folder: Fault_trace/Mapped surface rupture and structural traces used in finite-fault and deformation modeling.<br>- coseismic_fault_trace.txt : Digitized surface rupture trace of the Dingri event- shallow_fault_trace_map.gmt : GMT coordinate file for plotting shallow fault traces activated by mainshock<br>------------------------------------------------------------5. Finite Fault Model------------------------------------------------------------Folder: Finite_Fault/Slip distribution and geometry from joint inversion of geodetic and seismic data.<br>- Dingri-ffm.txt : Text file containing the finite-fault model parameters (strike, dip, rake, slip, and depth)<br>------------------------------------------------------------6. Interseismic Velocity Field------------------------------------------------------------Folder: Interseismic_velocity/<br>- southern_xizang_interseismic_velocity.txt : InSAR-derived 3D interseismic velocity fields of Southern Xizang<br>------------------------------------------------------------7. Lower-Crustal Strain Tensor------------------------------------------------------------Folder: Lower_Crust_Strain/Gridded 3-D strain tensor components of the lower crust derived from InSAR-derived 3D interseismic velocity fields.<br>- e11.grd, e12.grd, e13.grd, e22.grd, e23.grd, e33.grd : NetCDF grids of the strain tensor components (units = 10⁻6/yr)<br>------------------------------------------------------------8. Postseismic Deformation------------------------------------------------------------Folder: Postseismic_deformation/Line-of-sight (LOS) displacement time series and radar incidence angle maps used for modeling early afterslip and viscoelastic relaxation.<br>- LOS_disp_0108_0120.txt, LOS_disp_0108_0201.txt, LOS_disp_0108_0213.txt, LOS_disp_0113_0125.txt, LOS_disp_0113_0206.txt, LOS_disp_0113_0218.txt, LOS_disp_0117_0129.txt, LOS_disp_0117_0210.txt, LOS_disp_0117_0222.txt : LOS displacement fields between successive Sentinel-1 acquisition pairs (dates in mm/dd)- incidence_0108.txt, incidence_0113.txt, incidence_0117.txt : Radar incidence angle maps corresponding to each time interval : heading angle- ascending is 350, descending is 190<br>------------------------------------------------------------Notes------------------------------------------------------------- All text files (.txt) are tab- or space-delimited ASCII files with georeferenced coordinates in longitude, latitude, displacement (m) or equivalent columns.- .grd files follow the GMT/netCDF format.- These datasets support analyses of rupture kinematics, afterslip evolution, and lower-crustal flow for the 2025 Mw7.1 Dingri earthquake.<br>------------------------------------------------------------Contacts------------------------------------------------------------Zhangfeng MaEarth Observatory of Singapore, Nanyang Technological UniversityEmail: zhangfeng.ma@ntu.edu.sg<br>Shengji WeiKey Laboratory of Deep Petroleum Intelligent Exploration and Development, Institute of Geology and Geophysics, Chinese Academy of SciencesEarth Observatory of Singapore, Nanyang Technological UniversityAsian School of the Environment, Nanyang Technological UniversityEmail: shjwei@gmail.com