Results 31 to 40 of about 14,371 (276)

The coulomb stress changes for correlation analysis of tectonic earthquake activity and volcanic of the 2001–2010 Merapi eruption based on focal mechanism data

open access: yesKuwait Journal of Science, 2023
The incident of increased seismic activity of the Merapi volcano was initiated by several tectonic earthquake phenomena. Analysis of the mechanism of tectonic earthquakes can be studied based on the combination of static stress on the rock.
Fitri Puspasari, Wahyudi
doaj   +1 more source

Applying the Coulomb Failure Function with an optimally oriented plane to the 2008 Mw 7.9 Wenchuan earthquake triggering [PDF]

open access: yes, 2010
The Coulomb failure function (CFF) quantitatively describes static stress changes in secondary faults near the source fault of an earthquake. CFF can be employed to monitor how static stress transfers and then shed some light on the probability of ...
Xu, C., Li, Z., Wang, J., Drummond, J.
core   +1 more source

Global Induced Stress Field From Large Earthquakes Since 1900 and Chained Earthquake Occurrence

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Megathrust earthquake occurrence is dependent on the physical properties and stress environments of convergent plate boundaries. Local and regional earthquakes may modulate the stress environment fractionally that affects the nucleation of next ...
Junhyung Lee, Tae‐Kyung Hong
doaj   +1 more source

Stress triggering of the Lushan M7. 0 earthquake by the Wenchuan Ms8. 0 earthquake

open access: yesGeodesy and Geodynamics, 2013
The Wenchuan Ms8. 0 earthquake and the Lushan M7. 0 earthquake occurred in the north and south segments of the Longmenshan nappe tectonic belt, respectively. Based on the focal mechanism and finite fault model of the Wenchuan Ms8.
Wu Jianchao   +4 more
doaj   +1 more source

Coseismic Deformation Mechanisms of the 2021 Ms 6.4 Yangbi Earthquake, Yunnan Province, Using InSAR Observations

open access: yesRemote Sensing, 2021
At 21:48 on 21 May 2021, an Ms 6.4 earthquake occurred in Yangbi County, Dali Prefecture, Yunnan Province. At present, uncertainty remains regarding the source parameters and deformation mechanism of the Yangbi earthquake.
Bing Zhang   +5 more
doaj   +1 more source

Coseismic Rupture Behaviors of the January and March 2022 MW > 5.5 Hala Lake Earthquakes, NE Tibet, Constrained by InSAR Observations

open access: yesRemote Sensing, 2023
On 23 January and 25 March 2022, two MW > 5.5 Hala Lake earthquakes characterized by right-lateral strike-slip faulting occurred around the Elashan Fault in Northeastern Tibet, marking the two largest events since the 1927 MW 6.2 Hala Lake earthquake ...
Jiuyuan Yang, Caijun Xu, Yangmao Wen
doaj   +1 more source

A New Unified Solution for Deep Tunnels in Water-Rich Areas considering Pore Water Pressure

open access: yesGeofluids, 2021
Pore water pressure has an important influence on the stresses and deformation of the surrounding rock of deep tunnels in water-rich areas. In this study, a mechanical model for deep tunnels subjected to a nonuniform stress field in water-rich areas is ...
Hao Fan   +3 more
doaj   +1 more source

InSAR观测与小震分布联合分析2021年云南漾濞MS6.4地震应力卸载对周围区域的影响

open access: yesDizhen xuebao, 2023
为分析2021年5月21日云南省漾濞MS6.4地震后震区应力变化对周围断层的影响,本文通过InSAR技术获得了漾濞地震的同震形变场,并联合小震分布数据建立断层破裂滑动模型,继而通过计算断层面上的同震库仑应力来评估此次地震对周边断层的影响,以便有效地分析地震破裂的时空解析度。结果显示:① 在升降轨InSAR数据获得的精细同震形变场中,升轨最大视线向形变量约为5.00 cm,降轨最大视线向形变量约为7.80 cm;② 余震精定位的主震震中为(99.89°E,25.67°N),震源深度为13.29 km ...
Xiaoyi Wang   +4 more
doaj   +1 more source

Seismicity models based on Coulomb stress calculations

open access: yes, 2010
Our fundamental, physical, understanding of earthquake generation is that stress-build-up leads to earthquakes within the brittle crust rupturing mainly pre-existing crustal faults.While absolute stresses are difficult to estimate, the stress changes induced by earthquakes can be calculated, and these have been shown to effect the location and timing ...
Hainzl, S., Steacy, D., Marsan, S.
openaire   +3 more sources

Analysis of Coulomb Stress of Sumatera Earthquake Against Pyroclastic Flow of Mount Sinabung as Data Prone Volcano Disaster

open access: yes, 2022
The islands of Sumatra and Sinabung are located southwest of the Sundaland Continent which is a convergence route between the Indian-Australian Plate that infiltrates to the west of the Eurasian/Sundaland Plate. The increase in activity of Mount Sinabung
Winarto Silaban   +1 more
core   +1 more source

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