Abstract—Since 2009, the stress-strain state (SSS) of the Earth’s crust in Southern California has been monitored using geomechanical modeling that allows for current seismicity parameters in the region. Based on the calculations of the parameter reflecting the degree of closeness of the geological medium to the limiting stress, the regularities of its spatiotemporal distribution before strong seismic events (M > 7) that occurred in Southern California in 2010 and 2019 are established. The SSS anomalies are revealed at a distance of 10–30 km from the source of the future earthquake a few months before the event.

中文翻译：

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根据2019年7月6日М= 7.1地震之前的地质力学监测数据得出的南加州应力状态动态

摘要—自2009年以来，使用地质力学模型对南加州地壳的应力应变状态（SSS）进行了监测，该模型考虑了该地区的当前地震活动性参数。根据反映地质介质与极限应力的接近程度的参数计算，确定了2010年和2019年在南加州发生的强地震事件（M > 7）之前其时空分布的规律。在地震发生前几个月，距未来地震源10-30 km的距离处揭示了SSS异常。