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http://hdl.handle.net/2122/3738
Authors: | Faenza, L.* Marzocchi, W.* Serretti, P.* Boschi, E.* |
Title: | On the spatio-temporal distribution of M 7.0+ worldwide seismicity with a non-parametric statistics | Journal: | Tectonophysics | Series/Report no.: | /449 (2008) | Publisher: | Elsevier | Issue Date: | 13-Mar-2008 | DOI: | 10.1016/j.tecto.2007.11.066 | Keywords: | Earthquake spatio-temporal distribution World Wide Seismicity Temporal cluster |
Subject Classification: | 05. General::05.02. Data dissemination::05.02.02. Seismological data | Abstract: | The aim of this paper is to provide some constrains on the time behavior of earthquake generation mechanism, through the usage of a non-parametric statistics that leads up to the empirical estimation of the hazard function. The results indicate that the most characterizing temporal feature for large (M 7.0+) worldwide shallow earthquake occurrence is a clustering lasting few years, indicating that the probability of earthquake occurrence is higher immediately after the occurrence of an event. After that, the process becomes almost time independent, as in a Poisson process. Remarkably, this time clustering is very similar to what previously found for different spatio-magnitude windows, and it does not seem to depend on the tectonic style of the region. This may support the hypothesis of an universal law for earthquake occurrence. |
Appears in Collections: | Article published / in press |
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