Morisita-based space-clustering analysis of Swiss seismicity

Luciano Telesca, Jean Golay and Mikhail Kanevski

Physica A: Statistical Mechanics and its Applications, 2015, vol. 419, issue C, 40-47

Abstract: The m-Morisita index analysis was applied to the Swiss seismicity to investigate its space clustering properties. The analysis of the whole and aftershock depleted catalogs has revealed that the whole catalog is more spatially clusterized than the depleted one and that the clustering increases with the increase of the threshold magnitude. Furthermore, the multifractality degree of both catalogs is approximately the same. Our findings evidence the role played by the aftershocks in contributing to the increase of the spatial clustering of the earthquakes and that the spatial heterogeneity of seismicity is controlled by the main faults that produce the most independent events.

Keywords: m-Morisita index; Spatial clustering; Seismicity; Switzerland (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:419:y:2015:i:c:p:40-47

DOI: 10.1016/j.physa.2014.10.004

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