Multifractality in seismic sequences of NW Himalaya

Ashutosh Chamoli () and R. Yadav

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2015, vol. 77, issue 1, 19-32

Abstract: Multifractal behaviour of interevent time sequences is investigated for the earthquake events in the NW Himalaya, which is one of the most seismically active zones of India and experienced moderate to large damaging earthquakes in the past. In the present study, the multifractal detrended fluctuation analysis (MF-DFA) is used to understand the multifractal behaviour of the earthquake data. For this purpose, a complete and homogeneous earthquake catalogue of the period 1965–2013 with a magnitude of completeness M w 4.3 is used. The analysis revealed the presence of multifractal behaviour and sharp changes near the occurrence of three earthquakes of magnitude (M w ) greater than 6.6 including the October 2005, Muzaffarabad–Kashmir earthquake. The multifractal spectrum and related parameters are explored to understand the time dynamics and clustering of the events. Copyright Springer Science+Business Media Dordrecht 2015

Keywords: Multifractal; Multifractal detrended fluctuation analysis (MF-DFA); Himalaya; Earthquakes (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1007/s11069-013-0848-y

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