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首页> 外文期刊>Geophysical Research Letters >Stress drop for three M approx. 4.3-4.7 (1992-1994) Parkfield, CA, earthquakes
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Stress drop for three M approx. 4.3-4.7 (1992-1994) Parkfield, CA, earthquakes

机译:应力下降约3M。 4.3-4.7(1992-1994),加州帕克菲尔德,地震

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摘要

The slip distribution for three M approx. 4.3 to 4.7 Parkfield events that occurred between Oct. 20, 1992 and Dec. 20, 1994 was determined. To further investigate the rupture process of these events, the static stress change or stress drop caused by the slip was computed using a boundary integral method. It was found that the initial phase at or very near the hypocenter has the largest stress change in all cases. Further, evidence indicate that the spatial distribution of stress seem to be similar to the spatial distribution of slip, but with the larger initial peak in stress drop at the hypocenter.
机译:大约3 M的滑移分布。确定在1992年10月20日至1994年12月20日之间发生的4.3至4.7 Parkfield事件。为了进一步研究这些事件的破裂过程,使用边界积分方法计算了由滑移引起的静态应力变化或应力下降。发现在所有情况下,震源处或震源附近的初始阶段应力变化最大。此外,有证据表明,应力的空间分布似乎与滑移的空间分布相似,但在震源处应力下降的初始峰较大。

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