Potential of Fractal Analysis of Earthquakes through Wavelet Analysis and Determination of b Value as an Aftershock Precursor: A Case Study Using Earthquake Data between 2003 and 2011 in Turkey. (20th March 2014)

• Record Type: Journal Article
• Authors: Srivardhan, V.; Srinu, Uppala
• Other Names: Fattahi Morteza Academic Editor.
• Is Part Of: Journal of earthquakes. Volume 2014(2014)
• Publication Date: 2014-03-20
• Subjects: Earthquakes -- Periodicals; Earthquakes; Electronic journals; Periodicals; 551.22
• DOI: 10.1155/2014/123092
• Languages: English
• ISSNs: 2356-7333

Abstract

Abstract : The b value of earthquakes is very useful to forecast the occurrence of aftershocks in a given region. The b value 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 the b value 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 the b value after an earthquake and predict the occurrence of aftershocks with high accuracy. Repeated earthquakes were analyzed between 2003 and 2011 in Turkey and the b value was found for these earthquakes. The results gave an indication that the b value of the mainshock and its aftershocks are different and aftershocks occur in the region when the b value of the mainshock deviates significantly from 0.5, and aftershocks keep occurring until the b value of the earthquake approaches close to 0.5 for this region.