Open AccessDECAY PARAMETERS OF AFTERSHOCK SEQUENCES GLOBALLY DISTRIBUTED
Author(s) -
Θεόδωρος Μ. Τσάπανος,
G. Ch. Koravos,
Α. Πλέσσα,
N.K. Vythoulkas,
I.S. Pitsonis
Publication year - 2017
Publication title -
deltio tīs ellīnikīs geōlogikīs etaireias/deltio tīs ellīnikīs geōlogikīs etaireias
Language(s) - English
Resource type - Journals
eISSN - 2529-1718
pISSN - 0438-9557
DOI - 10.12681/bgsg.11410
Subject(s) - aftershock , seismology , sequence (biology) , geology , generalization , geodesy , mathematics , mathematical analysis , genetics , biology
The evaluation of the parameters c and k of the decay law of the aftershocks in an earthquake sequence has been carried out in this study. For this reason 170 seismic sequences globally distributed, during the time period 1964-1986, were performed. All of them modelled well by Omori’s law. We estimated that the mean global values of and parameters , are 0.660+0.181 and - 0.341+0.090, respectively. The values of these parameters are also estimated for different regions of the world, west and east part of circum-Pacific rim, as well as for the Eurasia belt.The parameters c and k calculated for the various regions of the world found to be spread around the global average, although admittedly few exceptions to this generalization are also observed to exist.