Rupture dynamics and ground motion from 3‐D rough‐fault simulations

Z Shi, SM Day - Journal of Geophysical Research: Solid Earth, 2013 - Wiley Online Library
Abstract We perform three‐dimensional (3‐D) numerical calculations of dynamic rupture
along non‐planar faults to study the effects of fault roughness on rupture propagation and …

Source properties of dynamic rupture pulses with off‐fault plasticity

AA Gabriel, JP Ampuero, LA Dalguer… - Journal of Geophysical …, 2013 - Wiley Online Library
Large dynamic stresses near earthquake rupture fronts may induce an inelastic response of
the surrounding materials, leading to increased energy absorption that may affect dynamic …

Dynamic evolution of off-fault medium during an earthquake: a micromechanics based model

MY Thomas, HS Bhat - Geophysical Journal International, 2018 - academic.oup.com
Geophysical observations show a dramatic drop of seismic wave speeds in the shallow off-
fault medium following earthquake ruptures. Seismic ruptures generate, or reactivate …

G: Fracture energy, friction and dissipation in earthquakes

S Nielsen, E Spagnuolo, M Violay, S Smith… - Journal of …, 2016 - Springer
Recent estimates of fracture energy G′ in earthquakes show a power-law dependence with
slip u which can be summarized as G′∝ ua where a is a positive real slightly larger than …

Off‐fault long‐term damage: A condition to account for generic, triangular earthquake slip profiles

F Cappa, C Perrin, I Manighetti… - Geochemistry …, 2014 - Wiley Online Library
Natural earthquake slip profiles have a generic triangular shape which the available rupture
dynamics models fail to reproduce. Long‐term faults are embedded in long‐damaged …

Effect of brittle off‐fault damage on earthquake rupture dynamics

MY Thomas, HS Bhat, Y Klinger - Fault zone dynamic …, 2017 - Wiley Online Library
In the shallow brittle crust, following earthquake ruptures, geophysical observations show a
dramatic drop of seismic wave speeds in the shallow off‐fault medium. Seismic ruptures …

Fault stability across the seismogenic zone

J Aubry, FX Passelègue, J Escartín… - Journal of …, 2020 - Wiley Online Library
Across the seismogenic zone, the transition from brittle to plastic deformation corresponds to
a semibrittle regime where brittle fracturing and plastic flow coexist at high strength …

Dynamic rupture propagation on fault planes with explicit representation of short branches

X Ma, A Elbanna - Earth and Planetary Science Letters, 2019 - Elsevier
An active fault zone is home to a plethora of complex structural and geometric features that
are expected to affect earthquake rupture nucleation, propagation, and arrest, as well as …

From slow to fast faulting: recent challenges in earthquake fault mechanics

S Nielsen - … Transactions of the Royal Society A …, 2017 - royalsocietypublishing.org
Faults—thin zones of highly localized shear deformation in the Earth—accommodate strain
on a momentous range of dimensions (millimetres to hundreds of kilometres for major plate …

Damage in step‐overs may enable large cascading earthquakes

Y Finzi, S Langer - Geophysical Research Letters, 2012 - Wiley Online Library
Seismic hazard analysis relies on the ability to predict whether an earthquake will terminate
at a fault tip or propagate onto adjacent faults, cascading into a larger, more devastating …