Potential of Fractal Analysis of Earthquakes through Wavelet Analysis and Determination ofbValue as an Aftershock Precursor: A Case Study Using Earthquake Data between 2003 and 2011 in Turkey

[摘要] Thebvalue of earthquakes is very useful to forecast the occurrence of aftershocks in a given region. Thebvalue characterizes the release of energy due to stress accumulation in the rocks through an earthquake and is a direct indicator for the prediction of aftershocks in the region. Wavelet based fractal analysis is used in this study to determine thebvalue by calculating the fractal dimension. This method guarantees high accuracy results through a limited dataset. The objective of this work was to demonstrate an elegant method for the determination of thebvalue after an earthquake and predict the occurrence of aftershocks with high accuracy. Repeated earthquakes were analyzed between 2003 and 2011 in Turkey and thebvalue was found for these earthquakes. The results gave an indication that thebvalue of the mainshock and its aftershocks are different and aftershocks occur in the region when thebvalue of the mainshock deviates significantly from 0.5, and aftershocks keep occurring until thebvalue of the earthquake approaches close to 0.5 for this region.

[学科分类] 地质学