Results 131 to 140 of about 9,434 (223)
Remote SensingOn 8 September 2023, an Mw 6.8 earthquake struck the High Atlas Mountains in western Morocco, where the tectonic regime has been poorly investigated due to its remoteness and weaker seismicity compared to the northern plate boundary.
Nan Fang +5 more
doaj +1 more source
The 2001 M_w 7.6 Bhuj earthquake, low fault friction, and the crustal support of plate driving forces in India [PDF]
, 2011 We present a source model for the 2001 M_w 7.6 Bhuj earthquake of northwest India. The slip distribution suggests a high stress drop (~35 MPa) and, together with the depth distribution of aftershocks, that the entire crust is seismogenic. We suggest that
Avouac, Jean-Philippe +3 more
core
Regularized Inversion of Coseismic Slip Distribution Based on Smoothness-Constrained Model
Advances in Geosciences, 2017 同震滑动的空间分布估计问题是不适定的，其反演结果存在非唯一性。为了获取稳定的同震滑动分布，本文采用了光滑模型约束的正则化反演方法。算法实施过程中，构建了断层面非均匀离散的滑动量分布光滑约束模型，并设计一种快速稳定的正则化因子求取方法；为了获得合理的滑动分布，采用了非负最小二乘求解方法。理论均匀滑动分布模型的反演试算，验证了反演算法的有效性和稳定性，且非负最小二乘方法能规避不合理的滑动分布。利用光滑约束反演方法反演了2005年Nias地震的同震滑动分布，并与前人的研究结果进行了对比分析。2005年Nias地震反演结果显示：断层面最大滑动量为12.8 m，这与Konca等反演得到的结果一致，且滑动分布所释放的地震矩为9.91 × 1012 Nm，其地震震级为Mw = 8.6，与USGS公布的结果一致 ...
openaire +1 more source
Limited Shallow Slip in the 1938 MS 8.3 Alaska Peninsula Earthquake Rupture
Geophysical Research LettersThe 1938 MS 8.3 and 2021 MW 8.2 earthquakes both ruptured within the Semidi segment of the Aleutian‐Alaska subduction zone. The large‐slip distribution of the 2021 event is well constrained within the depth range 25–45 km, with seaward tsunami ...
Yefei Bai +5 more
doaj +1 more source
Dizhi lixue xuebaoObjective On February 6, 2023, double strong earthquakes of MW7.8 and MW7.5 occurred consecutively within 10 hours in the Kahramanmaraş province in central-southern Turkey.
KANG Wenjun, XU Xiwei
doaj +1 more source
International Journal of Coal Science & TechnologyShear strain energy is a pivotal physical quantity in the occurrence of earthquakes and rockbursts during deep mining operations. This research is focused on understanding the changes in shear strain energy in the context of retreating longwall mining ...
Yatao Li, Xuehong Gao
doaj +1 more source
Fault Kinematics of the 2022 Delingha Mw 5.6 and Mw 5.7 Earthquakes Revealed by InSAR Observations
Remote SensingBetween January and April 2022, three moderate earthquakes (Mw 5.6 on 23 January, Mw 5.7 on 25 March, and Mw 5.1 on 15 April) struck the Hala Lake area of Delingha, Qinghai, China.
Xuening Wang +5 more
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingAnalysis of fault slip behavior is crucial for assessing regional seismic hazards. This study employs Sentinel-1 SAR data to investigate the coseismic and postseismic deformation associated with the 2024 Mw 7.0 Wushi earthquake using Interferometric ...
Jianlong Chen +3 more
doaj +1 more source
Slow Fault Slip Signatures in Coseismic Ionospheric Disturbances
Slow Fault Slip Signatures in Coseismic Ionospheric DisturbancesRise times of earthquake moment release influence the spectra of seismic waves. For example, slow fault movements in tsunami earthquakes excite larger tsunamis than expected from intensities of short-period seismic waves. Here we compare amplitudes of two different atmospheric waves, long-period internal gravity waves and short-period acoustic waves ...
openaire
Geoscience LettersModern satellite-based geodetic observations reveal the coseismic deformation of the 29 July 2025 moment magnitude 8.8 Kamchatka earthquake, providing valuable constraints on the rupture characteristics along the Kuril-Kamchatka subduction zone ...
Chi-Hsien Tang +3 more
doaj +1 more source