Earthquake statistics inferred from plastic events in soft-glassy materials
arXiv:1605.00673 · doi:10.1093/gji/ggw366
Abstract
We propose a new approach for generating synthetic earthquake catalogues based on the physics of soft glasses. The continuum approach produces yield-stress materials based on Lattice-Boltzmann simulations. We show that, if the material is stimulated below yield stress, plastic events occur, which have strong similarities with seismic events. Based on a suitable definition of displacement in the continuum, we show that the plastic events obey a Gutenberg-Richter law with exponents similar to those for real earthquakes. We further find that average acceleration, energy release, stress drop and recurrence times scale with the same exponent. The approach is fully self-consistent and all quantities can be calculated at all scales without the need of ad hoc friction or statistical laws. We therefore suggest that our approach may lead to new insight into understanding of the physics connecting the micro and macro scale of earthquakes.
arXiv comment13 pages, 7 figures
References in corpus (11)
- Power laws, Pareto distributions and Zipf's law
- Scale free networks of earthquakes and aftershocks
- Aftershock identification
- Scaling description of the yielding transition in soft amorphous solids at zero temperature
- Statistical Physics of Fracture, Friction and Earthquake
- Driving rate dependence of avalanche statistics and shapes at the yielding transition
- The effect of inertia on sheared disordered solids: Critical scaling of avalanches in two and three dimensions
- Mesoscopic lattice Boltzmann modeling of soft-glassy systems: theory and simulations
- Stick-slip instabilities in sheared granular flow: the role of friction and acoustic vibrations
- Herschel-Bulkley rheology from lattice kinetic theory of soft-glassy materials
- Acoustic Emission from Breaking a Bamboo Chopstick