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Expected peak ground acceleration in Uttarakhand Himalaya, India region from a deterministic hazard model

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  • A. Joshi
  • K. Mohan

Abstract

A method of seismic zonation based on the deterministic modeling of rupture planes is presented. Finite rupture planes along identified lineaments are modeled in the Uttarakhand Himalaya based on the semi empirical technique of Midorikawa (Tectonophysics 218:287–295, 1993). The expected peak ground acceleration thus estimated from this technique is divided into different zones similar to zones proposed by the Bureau of Indian standard, BIS (Indian standards code of practice for earthquake-resistant design of structures, 2002). The proposed technique has been applied to Kumaon Himalaya area and the surrounding region for earthquakes of magnitude M > 6.0. Approximately 56000 km 2 study area is classified into the highest hazard zone V with peak accelerations of more than 400 cm/s 2 . This zone V includes the cities of the Dharchula, Almora, Nainital, Haridwar, Okhimath, Uttarkashi, Pithorahargh, Lohaghat, Munsiari, Rudraprayag, and Karnprayag. The Sobla and Gopeshwar regions belong to zone IV, where peak ground accelerations of the order from 250 to 400 cm/s 2 can be expected. The prepared map shows that epicenters of many past earthquakes in this region lie in zone V, and hence indicating the utility of developed map in defining various seismic zones. Copyright Springer Science+Business Media B.V. 2010

Suggested Citation

  • A. Joshi & K. Mohan, 2010. "Expected peak ground acceleration in Uttarakhand Himalaya, India region from a deterministic hazard model," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 52(2), pages 299-317, February.
    • Handle: RePEc:spr:nathaz:v:52:y:2010:i:2:p:299-317
    DOI: 10.1007/s11069-009-9373-4
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    References listed on IDEAS

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    1. A. Joshi & Kapil Mohan & R. Patel, 2007. "A deterministic approach for preparation of seismic hazard maps in North East India," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 43(1), pages 129-146, October.
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    Cited by:

    1. Mohammad Ghobadi & Davood Fereidooni, 2012. "Seismic hazard assessment of the city of Hamedan and its vicinity, west of Iran," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 63(2), pages 1025-1038, September.
    2. Rajaram Chenna & Pradeep Kumar Ramancharla, 2016. "Simulation of near-field ground motion characteristics of May 01, 2013, Doda earthquake using modified semi-empirical approach," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 82(2), pages 1411-1430, June.

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