Spatio-temporal seismicity patterns using mutual information application to southern Iberian peninsula (Spain) earthquakes

Details Spatio-temporal seismicity patterns using mutual information application to southern Iberian peninsula (Spain) earthquakes Spatio-temporal seismicity patterns using mutual information application to southern Iberian peninsula (Spain) earthquakes

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000pepi..122..269p&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 122, Issue 3-4, p. 269-276.

Physics

2

Scientific paper

A quantitative method to characterize the spatio-temporal evolution of the seismic activity of a region for a given time interval is proposed in this paper. The epicentral region is divided in equal area parallelograms that we call ``cells''. A probability Pi is assign to every cell depending on its seismic activity level. The evolution of the mutual information, based on these probabilities, allows us to fit the optimal value for Pi's. The analysis results show that is possible to monitor the change of seismic activity quantitatively. We show that a propagation model based on cross template model (CT model) give us a criteria whether or not an area (whose size β is determined by the model mathematically) is going to be considered seismically activated in a period of time τ (whose value is also the result of the application of the method). Our method is applied to the data of Southern Iberian Peninsula seismicity including more than 10,000 earthquakes: data available from the Andalusian Seismic Network is used from 1985 to 1995.

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