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Magnitude determination using duration of high frequency energy radiation and displacement amplitude: application to tsunami earthquakes

机译:利用高频能量辐射的持续时间和位移振幅确定震级:在海啸地震中的应用

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Recently, we developed a new method to determine earthquake magnitudes using durations of high frequency energy radiation and the maximum displacement amplitudes, which can be measured from processing of first arriving P -waves. In the present study, we applied this method to the 1992 Nicaragua, 1994 Java, 1996 Peru, and 2006 Java earthquakes which have been suggested to be "tsunami earthquakes." Our magnitude estimates for these earthquakes are consistent with the moment magnitudes in the Global CMT catalog, which demonstrates that our method is applicable to tsunami earthquakes. The analyzed tsunami earthquakes are characterized in our method as those with longer source durations and smaller displacement amplitudes.
机译:最近,我们开发了一种使用高频能量辐射的持续时间和最大位移幅度确定地震震级的新方法,该方法可以通过处理首次到达的P波来测量。在本研究中,我们将这种方法应用于1992年的尼加拉瓜,1994年的Java,1996年的秘鲁和2006年的Java地震,这些地震被认为是“海啸地震”。我们对这些地震的震级估计与全球CMT目录中的矩震级一致,这表明我们的方法适用于海啸地震。在我们的方法中,所分析的海啸地震的特征是震源持续时间较长且位移幅度较小。

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