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Role of Multifractal Analysis in Understanding the Preparation Zone for Large Size Earthquake in the North-western Himalaya Region : Volume 18, Issue 1 (15/02/2011)

By Teotia, S. S.

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Book Id: WPLBN0003984006
Format Type: PDF Article :
File Size: Pages 8
Reproduction Date: 2015

Title: Role of Multifractal Analysis in Understanding the Preparation Zone for Large Size Earthquake in the North-western Himalaya Region : Volume 18, Issue 1 (15/02/2011)  
Author: Teotia, S. S.
Volume: Vol. 18, Issue 1
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Teotia, S. S., & Kumar, D. (2011). Role of Multifractal Analysis in Understanding the Preparation Zone for Large Size Earthquake in the North-western Himalaya Region : Volume 18, Issue 1 (15/02/2011). Retrieved from http://hawaiilibrary.net/


Description
Description: Department of Geophysics, Kurukshetra University, Kurukshetra – 136 119, India. Seismicity has power law in space, time and magnitude distributions and same is expressed by the fractal dimension D, Omori's exponent p and b-value. The spatio-temporal patterns of epicenters have heterogeneous characteristics. As the crust gets self-organised into critical state, the spatio-temporal clustering of epicenters emerges to heterogeneous nature of seismicity. To understand the heterogeneous characteristics of seismicity in a region, multifractal studies hold promise to characterise the dynamics of region. Multifractal study is done on seismicity data of the North-Western Himalaya region which mainly involve seismogenic region of 1905 Kangra great earthquake in the North-Western Himalaya region. The seismicity data obtained from USGS catalogue for time period 1973–2009 has been analysed for the region which includes the October 2005 Muzafrabad-Kashmir earthquake (Mw =7.6). Significant changes have been observed in generalised dimension Dq, Dq spectra and b-value. The significant temporal changes in generalised dimension Dq, b-value and Dq−q spectra prior to occurrence of Muzaffrabad-Kashmir earthquake relates to distribution of epicenters in the region. The decrease in generalised dimension and b-value observed in our study show the relationship with the clustering of seismicity as is expected in self-organised criticality behaviour of earthquake occurrences. Such study may become important in understanding the preparation zone of large and great size earthquake in various tectonic regions.

Summary
Role of multifractal analysis in understanding the preparation zone for large size earthquake in the North-Western Himalaya region

Excerpt
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