2026-04-18T07:33:17Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/832332025-07-17T00:45:08Zcom_2072_1033col_2072_452950

Statistical distribution of elapsed times and distances of seismic events: the case of the Southern Spain seismic catalogue Martínez Santafé, Maria Dolors Lana Pons, Francisco Javier Posadas, A M Pujades Beneit, Lluís Universitat Politècnica de Catalunya. Departament de Física Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental Universitat Politècnica de Catalunya. GIES - Geofísica i Enginyeria Sísmica Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Riscos geològics Earthquakes -- Spain Terratrèmols -- Espanya Several empiric cumulative distributions of elapsed times and distances between seismic events occurred in the Southern Iberian Peninsula from 1985 to 2000 (data extracted from the seismic catalogue of the Andalusian Institute of Geophysics) are investigated. Elapsed times and distances between consecutive seismic events of the whole catalogue, taking into account threshold magnitudes of 2.5, 3.0, 3.5 and 4.0, and of five seismic crises, without distinguishing magnitudes, are investigated. Additionally, the series of distances and elapsed times from the main event to every aftershock are also analysed for the five seismic crises. Even though a power law is sometimes a satisfactory model for the cumulative distribution of elapsed times and distances between seismic events, in some cases a fit with a Weibull distribution for elapsed times performs better. It is worth of mention that, in the case of the seismic crises, the fit achieved by the power law is sometimes improved when it is combined with a logarithmic law. The results derived might be a contribution to a better representation of the seismic activity by means of models that could be based on random-walk processes. Peer Reviewed Postprint (published version) 2005-02 Article Martinez, M.D., Lana, F.J., Posadas, A., Pujades, L. Statistical distribution of elapsed times and distances of seismic events: the case of the Southern Spain seismic catalogue. "Nonlinear processes in geophysics", Febrer 2005, vol. 12, p. 235-244. 1023-5809 https://hdl.handle.net/2117/83233 eng http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Open Access 10 p. application/pdf University of Thechnology and Agriculture Nicholas Copernicus University