Scaling relations of seismic moment, rupture area, average slip, and asperity size for M∼9 subduction-zone earthquakes

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題名:	Scaling relations of seismic moment, rupture area, average slip, and asperity size for M∼9 subduction-zone earthquakes
作者:	佐竹健治;Murotani, Satoko;Satake, Kenji;Fujii, Yushiro
貢獻者:	地球科學學院地球科學學系
關鍵詞:	asperity;earthquake source model;Earthquakes;giant earthquakes;Plate tectonics;scaling relations;Seismic activity;seismic moment;Seismology;tsunami hazard assessment;Tsunamis;Weather hazards
日期:	2013-10-16
上傳時間:	2026-04-23 11:42:43 (UTC+8)
出版者:	Wiley-Blackwell;Washington: Blackwell Publishing Ltd
摘要:	摘要： AbstractScaling relations for seismic moment M0, rupture area S, average slip D, and asperity size Sa were obtained for large, great, and giant (Mw = 6.7–9.2) subduction‐zone earthquakes. We compiled the source parameters for seven giant (Mw~9) earthquakes globally for which the heterogeneous slip distributions were estimated from tsunami and geodetic data. We defined Sa for subfaults exhibiting slip greater than 1.5 times D. Adding 25 slip models of 10 great earthquakes around Japan, we recalculated regression relations for 32 slip models: S = 1.34 × 10−10 M02/3, D = 1.66 × 10−7 M01/3, Sa = 2.81 × 10−11 M02/3, and Sa/S = 0.2, where S and Sa are in square kilometers, M0 is in newton meters, and D is in meters. These scaling relations are very similar to those obtained by Murotani et al. (2008) for large and great earthquakes. Thus, both scaling relations can be used for future tsunami hazard assessment associated with a giant earthquake. 其他題名： Geophys. Res. Lett 出版者： Washington: Blackwell Publishing Ltd 出版日期： 2013-10-16 出處： Geophysical Research Letters, 2013-10, Vol.40 (19), p.5070-5074 資源來源： Wiley Online Library All Journals 版權： 2013. American Geophysical Union. All Rights Reserved. 識別號： ISSN: 0094-8276 識別號： ISSN: 1944-8007 識別號： EISSN: 1944-8007 識別號： DOI: 10.1002/grl.50976
顯示於類別:	[地球科學學系] 期刊論文

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