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如果知道一个大地震的震源参数,就可以计算出发震前的应力场。这个应力场可用来划分出震前呈现出比其他任意形状的地区拥有更大地震矩速率变化的区域,这使我们可把大震前的库仑应力相互作用和地震活动的加剧这两个先前并不相关的课题联系起来。作为实例,我们检验了1950年以来加利福尼亚所有M≥6.5的地震。尽管我们是用加利福尼亚的地震活动性阐述了这个模型,但这种方法是通用的,适用于任何构造活动的地区。同时我们还指出,在已充分了解区域构造情况的地区,这种方法能够用来作为地震危险性评估的一种新手段。
If you know the source parameters of a large earthquake, you can calculate the stress field before the earthquake. This stress field can be used to delineate areas before the earthquake that have a greater rate of change in seismic moment than areas of any other shape that allow us to compare the two previous and previous Coulomb stress interactions and seismicity excursions Not related topics linked. As an example, we examined all the M ≥ 6.5 earthquakes in California since 1950. Although we illustrate this model with the seismicity of California, this method is universal and applies to any tectonic activity area. At the same time, we also point out that this method can be used as a new measure for seismic hazard assessment in areas that have a good understanding of regional tectonics.