We investigate the deformation processes during the 2019 Ridgecrest earthquake sequence by combining Global Navigation Satellite Systems, strong‐motion, and Interferometric Synthetic Aperture Radar datasets in a joint inversion. The spatial complementarity of slip between the Mw 6.4 foreshock, Mw 7.1 mainshock, and afterslip suggests the importance of static stress transfer as a triggering mechanism during the rupture sequence. The coseismic slip of the foreshock concentrates mainly on the east‐northeast–west‐southwest fault above the hypocenter at depths of 2–8 km. The slip distribution of the mainshock straddles the region above the hypocenter with two isolated patches located to the north‐northwest and south‐southeast, respectively. The geodetically determined moment magnitudes of the foreshock and mainshock are equivalent to moment magnitudes Mw 6.4 and 7.0, assuming a rigidity of 30 GPa. We find a significant shallow slip deficit (⁠>60%⁠) in the Ridgecrest ruptures, likely resulting from the immature fault system in which the sequence occurred. Rapid afterslip concentrates at depths of 2–6 km, surrounding the rupture areas of the foreshock and mainshock. The ruptures also accelerated viscoelastic flow at lower‐crustal depths. The Garlock fault was loaded at several locations, begging the question of possible delayed triggering.

中文翻译：

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2019年Ridgecrest破裂序列的前震，主震和后滑之间的滑动互补性和触发

我们通过在联合反演中结合全球导航卫星系统，强运动和干涉合成孔径雷达数据集来研究2019年Ridgecrest地震序列中的变形过程。Mw 6.4前震，Mw 7.1主震和后滑之间的滑移在空间上的互补性表明，在破裂序列中，静应力传递作为触发机制的重要性。前震的同震滑动主要集中在震源上方2－8 km的东西北断层上。主震的滑移分布横跨震中上方的区域，两个孤立的斑块分别位于西北偏北和东南偏南。大地测量确定的前震和主震力矩大小等于力矩大小Mw 6.4和7.0，假设其刚度为30 GPa。我们在Ridgecrest断裂中发现了明显的浅层滑脱缺陷（⁠> 60％⁠），这很可能是由于发生该序列的不成熟断层系统造成的。快速后滑集中在2-6 km的深度内，围绕前震和主震的破裂区域。破裂还加速了低地壳深度的粘弹性流动。Garlock故障在多个位置加载，这引发了可能的延迟触发问题。快速后滑集中在2-6 km的深度内，围绕前震和主震的破裂区域。破裂还加速了低地壳深度的粘弹性流动。Garlock故障在多个位置加载，这引发了可能的延迟触发问题。快速后滑集中在2-6 km的深度内，围绕前震和主震的破裂区域。破裂还加速了低地壳深度的粘弹性流动。Garlock故障在多个位置加载，这引发了可能的延迟触发问题。