Identification of Active Seismicity by Fractal Analysis for Understanding the Recent Geodynamics of Central Himalaya

Authors

  • P. N. S. Roy
     Department of Applied Geophysics, Indian School of Mines, Dhanbad, Jharkhand - 826 004
  • S. K. Mondal
     Department of Applied Geophysics, Indian School of Mines, Dhanbad, Jharkhand - 826 004

Keywords:

Fractal Dimension, Geodynamics, Seismicity, Himalaya.

Abstract

Seismicity along the Himalayan front is mostly attributed to the processes of collision between the Indian and the Eurasian plates resulting in the under-thrusting of the Indian Peninsula underneath the Himalaya. The dynamics of the region bears very complex components which require in-depth understanding. Here the overall rate of crustal shortening since ∼11 Ma is ∼21mm/yr, which is comparable to modern rate of under-thrusting of the northern Indian plate beneath the Himalaya. The region experienced a large number of great earthquakes for the last 100-120 years causing massive destruction. Here an attempt has been made to understand the seismicity pattern of the region using fractal correlation dimension and hence used for the detection of active seismicity. Some clusters of seismicity were found to be indicative of seismically very active zones. Such clusters may enlighten the understanding of recent complex dynamics of Himalayan zone.

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Issue

Volume 79, Issue 4, April 2012

Section

Research Articles

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Published

2012-04-01

How to Cite

Roy, P. N. S., & Mondal, S. K. (2012). Identification of Active Seismicity by Fractal Analysis for Understanding the Recent Geodynamics of Central Himalaya. Journal of Geological Society of India, 79(4), 353–360. Retrieved from http://www.geosocindia.com/index.php/jgsi/article/view/57946

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