Results 51 to 60 of about 825 (168)

Effects of frictional properties of quartz and feldspar in the crust on the depth extent of the seismogenic zone

open access: yesProgress in Earth and Planetary Science, 2019
The depth extent of the crustal seismogenic zone is closely related to the size of earthquakes. The mechanisms that control the depth of the lower transition of the seismogenic zone are important issues in seismology and disaster mitigation.
Koji Masuda   +2 more
doaj   +1 more source

Stress transmission along mid-crustal faults highlighted by the 2021 Mw 6.5 San Juan (Argentina) earthquake

open access: yesScientific Reports, 2022
Understanding the mechanisms of crustal deformation along convergent margins is critical to identifying seismogenic structures and assessing earthquake hazards for nearby urban centers. In the southern central Andes (28–33 $$^{\circ }$$ ∘ S), differences
Jean-Baptiste Ammirati   +3 more
doaj   +1 more source

Elastic properties of rocks from the seismogenic zone and minimum fault size to nucleate megathrust earthquakes

open access: yesProgress in Earth and Planetary Science
The elastic properties of rocks in subduction zones are indicators of the stress states and determine the critical length required for earthquake nucleation.
Hanaya Okuda   +3 more
doaj   +1 more source

Injection‐induced seismicity: Poroelastic and earthquake nucleation effects [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2015
AbstractThe standard model of injection‐induced seismicity considers changes in Coulomb strength due solely to changes in pore pressure. We consider two additional effects: full poroelastic coupling of stress and pore pressure, and time‐dependent earthquake nucleation.
P. Segall, S. Lu
openaire   +1 more source

Time‐ and State‐Dependent Damage Accumulation Due to Aftershocks Under an M9.0 Megathrust Earthquake in the Cascadia Subduction Zone

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 5, Page 1157-1175, 25 April 2026.
ABSTRACT This study develops a comprehensive framework for assessing time and state‐dependent aftershock damage accumulation under an M9.0 megathrust interface earthquake in the Cascadia Subduction Zone (CSZ). The framework integrates aftershock probabilistic seismic hazard analysis (APSHA) and state‐dependent fragility analysis (SDFA) within a ...
Hongzhou Zhang, Yazhou Xie
wiley   +1 more source

Study on deformation characteristics and dynamic cause of the Luding MS6.8 earthquake

open access: yesFrontiers in Earth Science, 2023
A MS6.8 earthquake struck Luding Country in Ganzi Prefecture, Sichuan Province on 5 September 2022. The earthquake occurred on the Moxi segment of Xianshuihe fault zone (XFZ), one of the most seismically active faults in the Chinese mainland.
Zhengyi Yuan   +6 more
doaj   +1 more source

Frictional Heterogeneity Governs Slip Partitioning and Seismic Hazard in the 2023 Turkey Earthquake Doublet

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Quantifying fault frictional properties is fundamental to understanding slip behavior and seismic hazard. We analyze 2 years of Sentinel‐1 SAR data following the 2023 Turkey earthquake doublet using Independent Component Analysis‐enhanced Small Baseline Subset‐InSAR, to resolve postseismic deformation and invert for afterslip on the East ...
Jianlong Chen   +4 more
wiley   +1 more source

Earthquake nucleation on faults with nonconstant normal stress [PDF]

open access: yesJournal of Geophysical Research, 2011
[1] Previous studies have found that earthquake nucleation on faults with rate-and-state dependent constitutive properties is a time dependent process involving evolution of slip rate v and frictional state variable θ. The evolution of θ is governed by an extended aging law, which accounts for the effects of normal stress variations.
Z. Fang   +3 more
openaire   +1 more source

Theoretical Maximum and Cumulative Seismic Moment Relationships Confirm that Injection Volume Controls the Occurrence Rate, But Not the Magnitude, of Induced Earthquakes

open access: yesGeophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Classical relationships between cumulative and maximum seismic moment, based on the Gutenberg‐Richter law, shows a non‐physical anomaly for low b‐values. We here derive new relationships, including a low and a high b‐value approximation.
L. De Barros, D. Marsan
wiley   +1 more source

Laboratory earthquakes decipher control and stability of rupture speeds

open access: yesNature Communications, 2023
Earthquakes are destructive natural hazards with damage capacity dictated by rupture speeds. Traditional dynamic rupture models predict that earthquake ruptures gradually accelerate to the Rayleigh wave speed with some of them further jumping to stable ...
Peng Dong   +4 more
doaj   +1 more source

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