A correlation between the b-value and the fractal dimension from the aftershock sequence of the 1999 Chi-Chi, Taiwan, earthquake
Resource
Geophysical Journal International 167 (3): 1215-1219
Journal
Geophysical Journal International
Journal Volume
167
Journal Issue
3
Pages
1215-1219
Date Issued
2006
Date
2006
Author(s)
Abstract
We analyse large number of aftershock events from the 1999 Chi-Chi, Taiwan, earthquake (ML 7.3) recorded around the epicentre area of the main shock in central Taiwan where events can be precisely located, due to dense coverage of modern seismometers. The seismicity is characterized by the b-value of the Gutenberg-Richter relation and the fractal (correlation) dimension D of earthquake hypocenters calculated from sliding windows containing more than 100 events. Over a span of 6 months after the main shock, we find a positive correlation between b and D from the aftershock sequence. Our result thus suggests that Aki's relation D = 3b/c could be possibly applied to one single fracturing process and its related aftermath. © 2006 The Authors Journal compilation © 2006 RAS.
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Type
journal article
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