Statistical Similarity between the Compression of a Porous Material and Earthquakes (Invited)
Abstract
It has long been stated that there are profound analogies between fracture experiments and earthquakes; however, few works attempt a complete characterization of the parallels between these so separate phenomena. We study the acoustic emission events produced during the compression of Vycor (SiO2). The Gutenberg-Richter law, the modified Omori's law, and the law of aftershock productivity hold for a minimum of 5 decades, are independent of the compression rate, and keep stationary for all the duration of the experiments. The waiting-time distribution fulfills a unified scaling law with a power-law exponent close to 2.45 for long times, which is explained in terms of the temporal variations of the activity rate.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2013
- Bibcode:
- 2013AGUFMNG24A..02C
- Keywords:
-
- 7223 SEISMOLOGY Earthquake interaction;
- forecasting;
- and prediction;
- 5104 PHYSICAL PROPERTIES OF ROCKS Fracture and flow;
- 4468 NONLINEAR GEOPHYSICS Probability distributions;
- heavy and fat-tailed