Results 11 to 20 of about 79,964 (253)
The source rupture process of the Great Banda Sea earthquake of November 4, 1963 [PDF]
Physics of the Earth and Planetary Interiors, 1987 Abstract The Banda Sea earthquake of November 4, 1963 is one of the largest ( M w = 8.3) intraplate events. It involved oblique thrusting at an intermediate depth within the subducted lithosphere near the abrupt bend in the southeastern Banda arc (6.86° S, 129.58° E). To better understand the tectonic significance of this earthquake, the detailed
Welc, Joan L., Thorne Lay
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Source mechanisms and rupture processes of the Jujuy seismic nest, Chile-Argentina border
Journal of South American Earth Sciences, 2022 German Research Foundation (DFG ...
Valenzuela-Malebrán, C. +5 more
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区域宽频地震波形反演所揭示的2022年青海门源MS6.9地震震源破裂过程
Dizhen xuebao, 2023 基于有限断层模型反演方法，利用区域宽频带数据反演了2022年1月青海门源MS6.9地震的震源破裂过程，并结合地质构造与地震重定位结果判断发震断层走向。综合反演结果表明：此次地震的发震断层走向为WNW向，主要以走滑为主；破裂主要发生在震源两侧，可能存在着双侧破裂，在震后2 s和9 s出现破裂极大值，最大错动量约为1.5 m，位于深度约6 km处，发生明显破裂的深度约为16 km，地表破裂长度约20 km；此次地震释放的标量地震矩为1.23×1019 N·m，相当于矩震级MW6.7，地震能量主要在前15 ...
Yinjie Zhu, Yan Luo, Li Zhao
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Dizhen xuebao, 2023 基于近台强震波形数据可快速且稳定地反演地震破裂过程。利用国家地震烈度速报与预警工程实施过程中青海地区新建和改建的强震动观测台站的波形数据，基于迭代反褶积和叠加法（IDS）对2022年1月8日青海门源MS6.9地震的震源破裂过程进行了反演。反演结果显示：破裂为自初始破裂点向ESE向扩展的单侧破裂，持续时间约为14 s （主要集中在2—8 s），最大滑动量为3.6 m，破裂长度约为20 km。破裂在纵向上自深部向浅部扩展，这与现场调查的地表破裂吻合。余震序列空间分布展示出显著的分段特征 ...
Danqing Dai, Zhigao Yang, li Sun
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The rupture process of the source of the 2016 Ecuador earthquake (Mw 7.8)
Revista de Investigación de Física, 2020 The 2016 Ecuador earthquake (Mw 7.8), is part of the sequence of large earthquakes in Ecuador and Colombia: 1906 (8.4 to 8.8 Mw), 1942 (Mw 7.8), 1958 (Mw 7.7), 1979 (Mw 8.2), all these events with a focal mechanism of the thrust fault type. In this research, we have obtain the seismic source distribution (indicating the presence of 2 main asperities ...
Jimenéz, César +3 more
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Applied Sciences, 2022 The kinematic source rupture process of the 2016 Meinong earthquake (Mw = 6.4) in Taiwan was derived from apparent source time functions retrieved from teleseismic S-waves by using a refined homomorphic deconvolution method.
Boi-Yee Liao, Huey-Chu Huang, Sen Xie
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Scientific Reports, 2022 The 2010 M W 7.2 El Mayor-Cucapah, Mexico, earthquake ruptured multiple faults with different faulting mechanisms. Resolving the earthquake rupture process and its relation to the geometric fault complexities is critical to our understanding of the ...
Shinji Yamashita, Yuji Yagi, Ryo Okuwaki
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Geoscience Letters, 2019 Stress drops of small earthquakes have been estimated under the assumption that the rupture propagates symmetrically within a circular fault. However, recent studies have observed directivity effects on seismic waves even for small earthquakes.
Keisuke Yoshida
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Linearized waveform inversion of local and near-regional events for source mechanism and rupturing processes [PDF]
Geophysical Journal International, 1994 SUMMARY We have developed an algorithm which can, given an initial trial solution, determine simultaneously earthquake-source mechanism, hypocentre and source-time function from the inversion of broad-band waveform data of local and near-regional events (epicentral distances less than loo). The forward modelling of the seismic ground motion is computed
MAO W. J +2 more
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Frontiers in Earth Science, 2023 Second-degree seismic moments provide a simple description of the spatiotemporal extent of the earthquake source. Finite source attributes such as rupture length, width, duration, velocity, and propagation direction can be estimated by computing second ...
Arianna Cuius +3 more
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