Himalayan Tectonic Belt: Morlet Wavelet Variation and Seismic Harmony

Abstract Morlet wavelet analysis is a method of studying the periodic spectrum non-stationary physical signals and applied to Himalayan Tectonic Belt explore whether there any seismic periodicity, possibility harmony or commonality properties among activities different zones. The earthquake sequence during 1951–2016 with magnitudes M ≥ 6.0 analysed. Wavelet non-periodicity for Centre zone suggests non-uniform spatial–temporal distribution movement between plates which may relate rare great earthquakes, while periodicities west east zones suggest concurrence adjustment tectonic east- west-end regions relative its central core. These three collectively form Belt. This contains periodicity about five years activity that tests successfully 95% confidence statistic. Borrowing from concept musical harmony, this significant harmonic reflects Belt’s pervasive stress an overall continent–continent plate convergence. also reveals Pamir–Hindu Kush Zone be engaged as big new family: Plus. It demonstrated whole has common property again being 5-year periodicity. indicates unified structure pervading active permeating seismicity.