Quasiperiodic events in an earthquake model

Abstract

We introduce a modification of the OFC earthquake model [Phys. Rev. Lett. 68, 1244 (1992)] in order to improve resemblance with the Burridge and Knopoff mechanical model and with possible laboratory experiments. A constant force continually drives the system, and thresholds are distributed randomly following a narrow distribution. We find quasiperiodic behavior in the avalanche time series with a period proportional to the degree of dissipation of the system. Periodicity is not as robust as criticality when the threshold force distribution widens; and foreshocks and aftershocks are connected to the observed periodicity.

4 pages, RevTex4, submitted to Phys. Rev. Lett

References in corpus (5)

• Self-Organized Criticality in Non-conserved Systems
• Properties of Foreshocks and Aftershocks of the Non-Conservative SOC Olami-Feder-Christensen Model: Triggered or Critical Earthquakes?
• Self-Organized Criticality and Universality in a Nonconservative Earthquake Model
• Distribution of epicenters in the Olami-Feder-Christensen model
• The complex scaling behavior of non--conserved self--organized critical systems

Cited by in corpus (8)

• Statistical Physics of Fracture, Friction and Earthquake
• Self-organization without conservation: true or just apparent scale-invariance?
• Avalanche prediction in Self-organized systems
• Experimental Investigation of Plastic Deformations Before Granular Avalanche
• Transient and stationary behavior of the Olami-Feder-Christensen earthquake model
• Simulation study of the inhomogeneous Olami-Feder-Christensen model of earthquakes
• Viscoelastic Interfaces Driven in Disordered Media and Applications to Friction
• Spatial heterogeneity in earthquake fault-like systems