Parameters of Tsunami Source Versus Earthquake Magnitude

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• 作者：Anna V. Bolshakova (1) annabolshakova@list.ru
  Mikhail A. Nosov (1) nosov@phys.msu.ru
• 关键词：Bottom earthquake &#8211 ; moment magnitude &#8211 ; tsunami source &#8211 ; co ; seismic deformation &#8211 ; initial elevation
• 刊名：Pure and Applied Geophysics
• 出版时间：November 2011
• 出版年：2011
• 期刊代码：123_0033-4553
• 类别：ear
• 卷：168
• 期：11
• 页码：2023-2031
• 数据来源：sp

摘要

This study employs an empirical-analytical approach in combination with Monte-Carlo method to establish relationships between earthquake moment magnitude and upper limits of tsunami source parameters: double-amplitude of vertical bottom deformation, displaced water volume, and potential energy of initial elevation. The approach is based on the Okada solution for a finite rectangular fault and empirical scaling laws for earthquake sources. Results are compared to empirical and theoretical relationships published previously. Parameters of some recent tsunami sources, those for which USGS provides slip distribution data, are considered in light of the established relationships.