Physics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3423301l&link_type=abstract
Geophysical Research Letters, Volume 34, Issue 23, CiteID L23301
Physics
7
Seismology: Earthquake Interaction, Forecasting, And Prediction (1217, 1242), Seismology: Theory
Scientific paper
The power law decay of the aftershocks rate is observed only after a characteristic time scale c. The dependence of c on the mainshock magnitude M M and on the lower cut-off magnitude M I is well established. By considering ten sequences recorded in the California Catalog we show that the aftershock number distribution becomes independent of both M M and M I if time is rescaled by an appropriate time scale fixed by the difference M M - M I . This result is interpreted within a more general dynamical scaling hypothesis recently formulated, relating time differences to magnitude differences. The above hypothesis gives predictions in good agreement with the recent findings by Peng et al. (2007).
Bottiglieri Milena
de Arcangelis L.
Godano Cataldo
Lippiello Eugenio
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