Results 1 to 10 of about 14,304,572 (257)
Source rupture process inversion of the 2013 Lushan earthquake, China
Geodesy and Geodynamics, 2013 The spatial and temporal slip distribution of the Lushan earthquake was estimated using teleseismic body wave data. To perform a stable inversion, we applied smoothing constraints and determined their optimal relative weights on the observed data using ...
Zhang Lifen +4 more
doaj +4 more sources
Source rupture process of the 2015 Gorkha, Nepal Mw7.9 earthquake and its tectonic implications
Geodesy and Geodynamics, 2016 On 25 April, 2015, an Mw7.9 earthquake occurred in Nepal, which caused great economic loss and casualties. However, almost no surface ruptures were observed.
Lifen Zhang +3 more
doaj +4 more sources
Dizhen xuebao, 2021 利用远震资料、近场强震资料和合成孔径雷达干涉同震形变资料确定了2017年8月9日精河MS6.6地震的断层面参数及震源破裂细节。为得到可靠的断层几何参数，发展了一套基于InSAR数据滑动分布反演的三维格点搜索流程，对本次地震断层面的走向、倾角和震源深度进行了格点搜索。结果显示，地震断层面走向为95°，倾角为47°，震源深度为14 km。基于搜索得到的断层模型进行破裂过程联合反演的结果显示：精河MS6.6地震为一次单侧破裂事件，最大滑动量约为0.8 m，滑动区域集中在断层面上震源以西5—15 km ...
Pingchuan Wang, Yong Zhang, Wanpeng Feng
doaj +1 more source
Rupture behavior of the 2017 MW6.6 Poso earthquake in Sulawesi, Indonesia
Geodesy and Geodynamics, 2021 On May 29, 2017, the MW6.6 Poso earthquake occurred in Central Sulawesi, Indonesia, causing moderate damages. The mainshock rupture and primary aftershock cluster occurred in the active Palolo-Sausu tectonic zone, and some aftershocks also took place ...
Dimas Sianipar +4 more
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Dizhi lixue xuebao, 2021 According to China Earthquake Network Center (CENC), the MS 6.4 Yangbi earthquake struck northwestern Yunnan Province on 21 May, 2021 at 21:48(Beijing time).
WANG Guangming +6 more
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source