This study uses Sentinel-1 Interferometric Synthetic Aperture Radar (InSAR) data to investigate the source model of the 26 November 2019 Albania earthquake, the largest earthquake to hit the northwestern region of the country in the last century. The preferred InSAR-based coseismic slip model shows that the slip is distributed in a relatively narrow area and is located at a depth of ~11 km with a maximum amplitude of ~0.89 m. The estimated geodetic moment of this earthquake is 3.70 × 10¹⁸ Nm, with a shear modulus of 40 GPa, which is equivalent to Mw 6.31. The preferred slip model shows that this earthquake ruptured an east-dipping fault, namely the Shijak Fault wherein the primary slip mechanism is the dip-slip motion. Two-dimensional (2.5-D) surface displacement derived from three pairs of InSAR data is used to ensure the dip direction of the seismogenic fault responsible for the 2019 Albania earthquake. The result of 2.5-D displacement shows the dominance of the westward and uplift motion with a maximum amplitude of ~0.1 m. It indicates that the source fault dips to the east, confirming the result of inversion analysis.

这项研究使用Sentinel-1干涉合成孔径雷达（InSAR）数据来调查2019年11月26日阿尔巴尼亚地震的震源模型，这是上个世纪袭击该国西北地区的最大地震。首选的基于InSAR的同震滑动模型表明，滑动分布在相对狭窄的区域中，位于〜11 km的深度，最大振幅为〜0.89 m。估计这次地震的大地矩为3.70×10 ¹⁸ Nm，剪切模量为40 GPa，相当于Mw 6.31。优选的滑动模型表明，该地震使东倾断层破裂，即Shijak断层，其中主要的滑动机制是倾滑运动。从三对InSAR数据中得出的二维（2.5-D）表面位移用于确保引起2019年阿尔巴尼亚地震的地震断层的倾角方向。2.5维位移的结果显示了向西和隆升运动的优势，最大振幅为〜0.1 m。表明源断层向东倾斜，证实了反演分析的结果。