Natural time analysis of critical phenomena: the case of acoustic emissions in triaxially deformed Etna basalt

Filippos Vallianatos, George Michas, Philip Benson, Peter Sammonds

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Acoustic emissions exhibit complex correlations between space, time, and magnitude. As such, they present a unique example for a complex time series. We apply the recently introduced method of natural time analysis, which enables the detection of long-range temporal correlations even in the presence of heavy tails and find that the acoustic emissions exhibits features similar to that of other equilibrium or non-equilibrium critical systems such as worldwide seismicity as presented in the Centennial earthquake catalogue which includes global seismicity events with magnitude Mw>7.0. These results support the universal behaviour of the fracturing processes from the laboratory to the global scale.
    Original languageEnglish
    Pages (from-to)5172-5178
    JournalPhysica A: Statistical Mechanics and its Applications
    Volume392
    Issue number20
    DOIs
    Publication statusPublished - 15 Oct 2013

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