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 …

Rupture dynamics of cascading earthquakes in a multiscale fracture network

KH Palgunadi, AA Gabriel, DI Garagash… - Journal of …, 2024 - Wiley Online Library
Fault‐damage zones comprise multiscale fracture networks that may slip dynamically and
interact with the main fault during earthquake rupture. Using 3D dynamic rupture simulations …

Depth-dependent seismic anomalies and potential asperity linked to fluid-driven crustal structure in Garhwal region, NW Himalaya

A Tiwari, A Paul, K Sain, R Singh, R Upadhyay - Tectonophysics, 2023 - Elsevier
Characterizing the stress heterogeneity and crustal complexities are essential to understand
the important aspects of rupture development and its propagation in a tectonically active …

Constraints upon fault zone properties by combined structural analysis of virtual outcrop models and discrete fracture network modelling

A Ceccato, G Viola, M Antonellini, G Tartaglia… - Journal of Structural …, 2021 - Elsevier
The permeability structure of a fault zone is strongly dependent on the occurrence of meso-
scale fracture patterns within the damage zone. Here, structural analyses of Virtual Outcrop …

3D digital outcrop model-based analysis of fracture network along the seismogenic Mt. Vettore Fault System (Central Italy): the importance of inherited fractures

Y Panara, N Menegoni, F Carboni, R Inama - Journal of Structural Geology, 2022 - Elsevier
Abstract The Mt. Vettore area is located in the Central Apennines (Italy), a region
characterized by intense seismic activity that has recorded multiple moderate-to-high …

A micromechanical analysis of marble pulverization under quasi-static progressive cyclic loading

B Fu, Y Li, Y Ji, A Zang - International Journal of Rock Mechanics and …, 2024 - Elsevier
Highly fragmented rocks (ie, pulverized rocks) in the fault damage zone presumably develop
during co-seismic deformation processes. These pulverized rocks close to the fault core are …

The influence of off-fault deformation zones on the near-fault distribution of coseismic landslides

CK Bloom, A Howell, T Stahl, C Massey… - …, 2022 - pubs.geoscienceworld.org
Coseismic landslides are observed in higher concentrations around surface-rupturing faults.
This observation has been attributed to a combination of stronger ground motions and …

How does in situ stress rotate within a fault zone? Insights from explicit modeling of the frictional, fractured rock mass

S Zhang, X Ma - Journal of Geophysical Research: Solid Earth, 2021 - Wiley Online Library
We quantitatively investigate the spatial stress variations within the fault zone rock mass by
explicitly incorporating macroscopic fractures into a 2D multilayer model. Based on elastic …

The shear deformation zone and the smoothing of faults with displacement

C Perrin, F Waldhauser… - Journal of Geophysical …, 2021 - Wiley Online Library
We use high‐resolution earthquake locations to characterize the three‐dimensional
structure of active faults in California and how it evolves with fault structural maturity. We …

Energy partitioning, dynamic fragmentation, and off‐fault damage in the earthquake source volume

SE Johnson, WJ Song, SS Vel… - … Research: Solid Earth, 2021 - Wiley Online Library
Seismological fracture or breakdown energy represents energy expended in a volume
surrounding the advancing rupture front and the slip** fault surface. Estimates are …