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Ground deformation caused by mining affects the safety of underground mining and buildings. High-resolution characterization of ground deformation respond to latent sources is a first step toward improved hazard forecasting. We rely on long-term GPS displacement data and an improved NMF algorithm of BSS to identify the sources driving ground deformation. The NMF identifies three sources (S1, S2, and S3) with distinct spatial and temporal surface deformation patterns and quantitatively revealsdoi:10.21203/rs.3.rs-232646/v1 fatcat:papwjzduc5f3zp7d4ebaab3jjm