Regional Multifractal Variability of the Overall Seismic Activity in Pakistan from 1820 to 2020 via the Application of MDFA on Earthquake Catalogs-Reference-Cited by-同舟云学术

Regional Multifractal Variability of the Overall Seismic Activity in Pakistan from 1820 to 2020 via the Application of MDFA on Earthquake Catalogs

Published:2023-11-30 Issue:12 Volume:7 Page:857
ISSN:2504-3110
Container-title:Fractal and Fractional
language:en
Short-container-title:Fractal Fract

Author:

Alam Aftab¹,Nikolopoulos Dimitrios²^ORCID,Cantzos Demetrios²,Tahir Muhammad³,Iqbal Tahir¹,Petraki Ermioni²,Yannakopoulos Panayiotis⁴,Rafique Muhammad⁵^ORCID

Affiliation:

1. Centre for Earthquake Studies, National Centre for Physics, Shahdra Valley Road, P.O. Box 2141, Islamabad 44000, Pakistan

2. Department of Industrial Design and Production Engineering, University of West Attica, Petrou Ralli & Thivon 250, Aigaleo, 12244 Athens, Greece

3. Department of Management Sciences, Comsats University, Islamabad 45550, Pakistan

4. Department of Informatics and Computer Engineering, University of West Attica, Agiou Spyridonos, 12243 Aigaleo, Greece

5. Department of Physics, King Abdullah Campus, University of Azad Jammu and Kashmir Muzaffarabad, Azad Kashmir 13100, Pakistan

Abstract

The overall seismicity of Pakistan from 1820 to 2020 is analysed in terms of its multifractal behaviour. Seismic events of magnitude ML = 3.0 and above are spatially clustered into four distinct groups, each one corresponding to a different region of high seismic activity. The Multifractal Detrended Fluctuation Analysis (MFDA) method applied on each cluster reveals pronounced inter-cluster heterogeneity in terms of the resulting generalised Hurst exponent and fractality spectrum, possibly due to the particular tectonic characteristics of the regions under investigation. Additional results on the variability of the Gutenberg–Richter b-value across the defined clusters further corroborate the uniqueness of the seismic profile of each region.

Publisher

MDPI AG

Subject

Statistics and Probability,Statistical and Nonlinear Physics,Analysis

Link

https://www.mdpi.com/2504-3110/7/12/857/pdf

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