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Title: Statistical Similarity between the Compression of a Porous Material and Earthquakes
Author: Baró i Urbea, Jordi
Corral, Álvaro
Illa i Tortós, Xavier
Planes Vila, Antoni
Salje, Ekhard K. H.
Schranz, Wilfried
Soto-Parra, Daniel E.
Vives i Santa-Eulàlia, Eduard
Keywords: Terratrèmols
Materials porosos
Porous materials
Issue Date: 19-Feb-2013
Publisher: American Physical Society
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.
Note: Reproducció del document publicat a:
It is part of: Physical Review Letters, 2013, vol. 110, num. 8, p. 088702-088702
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Física de la Matèria Condensada)

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