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Moment magnitudes of two large Turkish earthquakes on February 6,2023 from long-period coda 被引量:7

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摘要 Two large earthquakes(an earthquake doublet)occurred in south-central Turkey on February 6,2023,causing massive damages and casualties.The magnitudes and the relative sizes of the two mainshocks are essential information for scientific research and public awareness.There are obvious discrepancies among the results that have been reported so far,which may be revised and updated later.Here we applied a novel and reliable long-period coda moment magnitude method to the two large earthquakes.The moment magnitudes(with one standard error)are 7.95±0.013 and 7.86±0.012,respectively,which are larger than all the previous reports.The first mainshock,which matches the largest recorded earthquakes in the Turkish history,is slightly larger than the second one by 0.11±0.035 in magnitude or by 0.04 to 0.18 at 95%confidence level.
出处 《Earthquake Science》 2023年第2期169-174,共6页 地震学报(英文版)
基金 the National Key R&D Program of China(No.2022YFF0800601) the National Natural Science Foundation of China(No.U1939204).
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