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arXiv · 1211.1360

Statistical similarity between the compression of a porous material and earthquakes

Jordi Baro·Alvaro Corral·Xavier Illa·Antoni Planes·Ekhard K. H. Salje·Wilfried Schranz·Daniel E. Soto-Parra·Eduard Vives
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Abstract

It has been long stated that there are profound analogies between fracture experiments and earthquakes; however, few works attempt a complete characterization of the parallelisms 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 are found to 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.

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Jordi Baro, Alvaro Corral, Xavier Illa, Antoni Planes, Ekhard K. H. Salje, Wilfried Schranz, Daniel E. Soto-Parra, Eduard Vives. 2012-11-06. Statistical similarity between the compression of a porous material and earthquakes. https://doi.org/10.1103/physrevlett.110.088702

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