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Updated: May 20, 2026

Sediment Core Extrusion Method at Millimeter Resolution Using a Calibrated, Threaded-rod
Published on: August 17, 2016
Natural time analysis of the Centennial Earthquake Catalog
N V Sarlis1, S-R G Christopoulos
1Physics Department, Solid State Section and Solid Earth Physics Institute, University of Athens, Panepistimiopolis, Zografos 157 84, Athens, Greece. nsarlis@phys.uoa.gr
Abstract:
By using the most recent version (1900-2007) of the Centennial Earthquake Catalog, we examine the properties of the global seismicity. Natural time analysis reveals that the fluctuations of the order parameter κ(1) of seismicity exhibit for at least three orders of magnitude a characteristic feature similar to that of the order parameter for other equilibrium or non-equilibrium critical systems-including self-organized critical systems. Moreover, we find non-trivial magnitude correlations for earthquakes of magnitude greater than or equal to 7.
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