Comment on “A Homogenous and Complete Earthquake Catalog for Northeast India and the Adjoining Region” by R. B. S. Yadav, P. Bormann, B. K. Rastogi, M. C. Das, and S. Chopra

Comment on “A Homogenous and Complete Earthquake Catalog for Northeast India and the Adjoining Region” by R. B. S. Yadav, P. Bormann, B. K. Rastogi, M. C. Das, and S. Chopra
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R. B. S. Yadav、P. Bormann、B. K. Rastogi、M. C. Das 和 S. Chopra 对“印度东北部及邻近地区的均匀完整地震目录”的评论

DOI:
10.1785/gssrl.81.2.232
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
H. R. Wason
H. R. Wason
中科院分区:
--
文献类型:
--
作者:
R. Das;H. R. Wason

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Yadav 等人在他们的文章中。 (2009) 做出了两个主要的近似值,这两个近似值对他们考虑的目录的 Mw 、HRVD 代理值的估计有重大影响。第一个近似是考虑与所有震级范围的 MS ,ISC 等效的未指定震级,第二个近似涉及将 Mw,HRVD 代理估计为两个 Mw,HRVD 转换的平均值(只要可从 mb ,ISC 和 MS ,ISC 获得)。他们还使用少量的 Mw、HRVD & MS、NEIC 和 MS、ISC & MS、NEIC 数据对来估计代表性区域关系,以用于相应的 Mw、HRVD 转换。在这篇评论中,我们检查了这些近似值和基于小样本量的相关性所涉及的不准确性,并且我们提出了改进的回归关系和计算 Mw 、HRVD 代理平均值的替代方案。 1897 年至 1962 年期间,大约有 186 次地震的震级未指定……
In their article, Yadav et al. (2009) made two major approximations that have a significant impact on the estimates of Mw ,HRVD proxies for the catalog that they considered. The first approximation is to consider the unspecified magnitudes equivalent to MS ,ISC for all magnitude ranges, and the second relates to estimating Mw ,HRVD proxies as the average of the two M w,HRVD conversions wherever available both from mb ,ISC and MS ,ISC. They also used a small number of data pairs of Mw ,HRVD & MS ,NEIC and MS ,ISC & MS ,NEIC for estimating representative regional relationships to be used for corresponding Mw ,HRVD conversions. In this comment we examine the inaccuracy involved in these approximations and in correlations based on small sample sizes, and we propose improved regression relations and an alternative scheme for calculating the averages of Mw ,HRVD proxies. For the period 1897 to 1962, magnitudes are not specified for about 186 …