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首页> 美国政府科技报告 >Effect of source depth correction on the estimation of earthquake size
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Effect of source depth correction on the estimation of earthquake size

机译：源深校正对地震震级估算的影响

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The relationship between surface wave magnitude, M(sub s), and seismic moment, M(sub o), of earthquakes is essential for the estimation of seismic risk in any region. In the hypothesis of constant stress drop, theoretical models predict that Log M(sub o) and M(sub s) are related by a linear law. The slope most commonly found in the literature is around 1.5. Here we show that the application to the Ms values of the necessary correction for the focal depth, gives a general increment of the correlation coefficient, and that a slope around 1.0 is consistent with the global data, while for regionalized data it can vary from about 1.0 to 2.0. (author). 14 refs, 3 tabs. (Atomindex citation 26:044506)

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