LADSDIn: LiCSAR-Based Anomaly Detector of Seismic Deformation in InSAR

Manual analysis of LiCSAR deformation data in tectonic zones and timely detection pre-earthquake anomalous activity are very time-consuming. To solve this problem, an LiCSAR-based anomaly detector seismic interferometric synthetic aperture radar (LADSDIn) is constructed article. LADSDIn can automatically detect extract zones. modeled by learning the spatiotemporal characteristics MTInSAR time series to abnormal deformation. The considers transients that deviate from “predicted” deformation, which considered “anomalous.” For earthquake-prone regions, “anomalies” with outlier spatial temporal properties usually deformations caused activities. We successfully applied January 8, 2022, Menyuan Mw 6.7 earthquake China, detected extent ground induced activity. results show range ascending track −350–87 mm, descending −127–132 mm. “anomalous deformation” signs before (November 2021). In addition, supports parallel processing chunks reduce computation time. facilitate cluster deployment use for automatic extraction global This work provides theoretical support automation refinement study