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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/5894
Title: Modeling of 2011 IndoNepal Earthquake and Scenario Earthquakes in the Kumaon Region and Comparative Attenuation Study Using PGA Distribution with the Garhwal Region
Authors: Sandeep
Joshi A.
Sah S.K.
Kumar P.
Lal S.
Devi S.
Monika
Published in: Pure and Applied Geophysics
Abstract: Kumaon and Garhwal regions are the chief terrains of Uttarakhand Himalaya. The present article simulates the strong ground motion of the 2011 IndoNepal earthquake in the Kumaon region using modified semi empirical technique (MSET). Acceleration records at ten stations in the near field region have been simulated which validates well with actual records and therefore confirms the reliability of MSET. In addition, MSET has been used to simulate strong motion records of future scenario earthquakes (Mw 7.0 and Mw 8.0) in Kumaon region by assuming the earthquake location same as that of 2011 IndoNepal earthquake. Isoacceleration maps are also provided, which reveals more than 400 gal value of PGA at epicentral distances less than 25 kms for an earthquake of magnitude 8.0. The comparison of isoacceleration map of future scenario earthquake (Mw 7.0) in Kumaon region has been done with isoacceleration map of 1991 Uttarkashi earthquake (Mw 6.8) in Garhwal region which suggests distinct attenuation characteristics of these two regions. © 2019, Springer Nature Switzerland AG.
Citation: Pure and Applied Geophysics (2019), 176(11): 4687-4700
URI: https://doi.org/10.1007/s00024-019-02232-1
http://repository.iitr.ac.in/handle/123456789/5894
Issue Date: 2019
Publisher: Birkhauser Verlag AG
Keywords: Garhwal Himalaya
Kumaon Himalaya
PGA
scenario earthquake
semi empirical
ISSN: 334553
Author Scopus IDs: 55914925100
55682260000
57208449658
57192586891
57209614174
57209296805
57213570765
Author Affiliations: Sandeep, Department of Geophysics, Banaras Hindu University, Varanasi, India
Joshi, A., Department of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee, India
Sah, S.K., Department of Geophysics, Banaras Hindu University, Varanasi, India
Kumar, P., Wadia Institute of Himalayan Geology, Dehradun, India
Lal, S., Department of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee, India
Devi, S., Department of Geophysics, Banaras Hindu University, Varanasi, India
Monika, Wadia Institute of Himalayan Geology, Dehradun, India
Funding Details: This research work is a product of sponsored projects from Science and Engineering Research Board, DST, with project reference no. ECR/2016/000737.The data used from project MoES/P.O.(Seismo)/1(42)/2009, http://www.pesmos.in and USGS is thankfully acknowledged. Author Dr. Sandeep sincerely thanks Dr. Himanshu Mittal and Dr. Preeti for their valuable suggestions. The authors sincerely thank Department of Geophysics, Banaras Hindu University, Varanasi and Earth Sciences department, IIT Roorkee. Author PK sincerely acknowledged Director, Wadia Institute of Himalayan Geology, Dehradun.
Corresponding Author: Kumar, P.; Wadia Institute of Himalayan GeologyIndia; email: sainiparveen.saini@gmail.com
Appears in Collections:Journal Publications [ES]

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