2026-03-13T05:17:03Z https://repository.dl.itc.u-tokyo.ac.jp/oai

oai:repository.dl.itc.u-tokyo.ac.jp:00032446 2022-12-19T04:08:29Z 80:4535:4579:4580 9:504:4538:4581:4582

負の応力降下量が断層破壊におよぼす影響 : 2004年新潟県中越地震 The Effects of Negative Stress Drop on Fault Rupture : The 2004 mid-Niigata (Chuetsu), Japan, earthquake Miyatake, Takashi 123751 Kato, Aitaro 123752 Hikima, Kazuhito 123753 Kimura, Takeshi 123754 51.1 Rupture Process The 2004 mid-Niigata earthquake Stress drop application/pdf We investigate spatiotemporal distribution in a kinematic slip model of the 2004 mid-Niigata (Chuetsu) earthquake, focusing on the relationship between rupture time and stress drop. Stress drop distribution is calculated from the final slip distribution inferred from waveform inversion. There are negative stress drop regions near the edges of inferred asperities. Rupture delays were detected in the mean slip rate time functions. Combining the above distribution, we found delayed rupture within regions of negative stress drop. In these negative stress drop regions, rupture prop-agation is expected to arrest because a positive stress drop promotes rupture. It should be em-phasized that our results were obtained without reconstructing the dynamic faulting process. departmental bulletin paper 地震研究所 2009 application/pdf 地震研究所彙報 3-4 83 273 279 AN00162258 00408972 https://repository.dl.itc.u-tokyo.ac.jp/record/32446/files/IHO83303.pdf https://doi.org/10.15083/0000032446 http://hdl.handle.net/2261/25332 https://repository.dl.itc.u-tokyo.ac.jp/records/32446 eng