Fracture energy and breakdown work during earthquakes

M Cocco, S Aretusini, C Cornelio… - Annual Review of …, 2023 - annualreviews.org
Large seismogenic faults consist of approximately meter-thick fault cores surrounded by
hundreds-of-meters-thick damage zones. Earthquakes are generated by rupture …

[HTML][HTML] Laboratory experiments on fault behavior towards better understanding of injection-induced seismicity in geoenergy systems

Y Ji, H Hofmann, K Duan, A Zang - Earth-Science Reviews, 2022 - Elsevier
Induced seismicity associated with fluid injection into underground formations jeopardizes
the sustainable utilization of the subsurface. Understanding the fault behavior is the key to …

Parallel dynamics of slow slips and fluid-induced seismic swarms

P Danré, L De Barros, F Cappa, L Passarelli - Nature Communications, 2024 - nature.com
Earthquake swarms may be driven by fluids, through hydraulic injections or natural fluid
circulation, but also by slow and aseismic slip transients. Understanding the driving factors …

Dynamics, radiation, and overall energy budget of earthquake rupture with coseismic off‐fault damage

K Okubo, HS Bhat, E Rougier, S Marty… - Journal of …, 2019 - Wiley Online Library
Earthquake ruptures dynamically activate coseismic off‐fault damage around fault cores.
Systematic field observation efforts have shown the distribution of off‐fault damage around …

Initial effective stress controls the nature of earthquakes

FX Passelègue, M Almakari, P Dublanchet… - Nature …, 2020 - nature.com
Modern geophysics highlights that the slip behaviour response of faults is variable in space
and time and can result in slow or fast ruptures. However, the origin of this variation of the …

Evolution of shear fabric in granular fault gouge from stable sliding to stick slip and implications for fault slip mode

MM Scuderi, C Collettini, C Viti, E Tinti… - …, 2017 - pubs.geoscienceworld.org
Laboratory and theoretical studies provide insight into the mechanisms that control
earthquake nucleation, when fault slip velocity is slow (< 0.001 cm/s), and dynamic rupture …

Evolution of b-value during the seismic cycle: Insights from laboratory experiments on simulated faults

J Rivière, Z Lv, PA Johnson, C Marone - Earth and Planetary Science …, 2018 - Elsevier
We investigate the evolution of the frequency-magnitude b-value during stable and unstable
frictional sliding experiments. Using a biaxial shear configuration, we record broadband …

High‐Rate Fluid Injection Reduces the Nucleation Length of Laboratory Earthquakes on Critically Stressed Faults in Granite

Y Ji, L Wang, H Hofmann, G Kwiatek… - Geophysical Research …, 2022 - Wiley Online Library
We conducted fluid injection experiments on cylindrical low‐permeability granite samples
with a critically stressed sawcut fault at local injection rates of 0.2 and 0.8 mL/min and …

Earthquake Cycle Deformation Associated With the 2021 MW 7.4 Maduo (Eastern Tibet) Earthquake: An Intrablock Rupture Event on a Slow‐Slip** Fault From …

J Fang, Q Ou, TJ Wright, R Okuwaki… - Journal of …, 2022 - Wiley Online Library
In the continents, the importance of earthquakes that occur away from major block‐bounding
faults is still debated. The 21 May 2021 MW∼ 7.4 Maduo earthquake occurred on a …

The role of grain size and effective normal stress on localization and the frictional stability of simulated quartz gouge

JD Bedford, DR Faulkner - Geophysical Research Letters, 2021 - Wiley Online Library
For earthquakes to occur on tectonic faults deformation localizes onto discrete slip surfaces
within the gouge material of the fault core. Here, we investigate how localization is promoted …