Seismic Microzonation: The Indian Initiaves
IR@C-MMACS: CSIR-Centre for Mathematical Modelling and Computer Simulation, Bangalore
View Archive Info| Field | Value | |
| Title |
Seismic Microzonation: The Indian Initiaves
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| Creator |
Parvez, Imtiyaz A
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| Subject |
Computational Seismology
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| Description |
The spate of Earthquakes in India in the last two decades has heightened the sensitivity of administrators, engineers and even lay people to the risks associated with seismic disasters. Several of the metropolitan and big cities in India are situated in the vicinity of the Himalaya, where the probability of threat to seismic hazard is significant. Even the Peninsular region, so far considered seismically passive, has, time and again, displayed frayed seismic tempers. Three devastating earthquakes, namely that of Bhuj of 26 January 2001 of Mw 7.7, Sumatra of 24 December 2004 of Mw 9.1 and Pakistan (Kashmir) of Mw 7.6, have severely shaken the Indian subcontinent in the 21st century. The damage caused by Bhuj earthquake was spread over in a radius of 400 kilometers, that included cities such as Ahmedabad, Bhavnagar and Surat, located at distances of 240 km, 275 km and 350 km, respectively from the epicentre. A similar threat exists to the National Capital region of Delhi from seismic events origination in the central Himalaya. There are several other cities like Kolkata, Dehradun, Guwahati, Patna, etc. that lie over thick sedimentary deposits and are prone to such enhanced seismic effects.
To mitigate the seismic hazard, it is necessary to define a correct response in terms of both peak ground acceleration and spectral amplification. These factors are highly dependent on the local soil conditions and on the source characteristics of the expected earthquakes. The National disaster management policy, which now lays much greater emphasis on mitigation and preparedness measures, strongly advocates for seismic hazard assessment of urban agglomerations at micro level. The paper makes a review of these issues, discusses the initiatives taken by various research organizations in India, gives an outline of the methodologies adopted and presents a resume of some of the microzonation studies.
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| Publisher |
CSIR Centre for Mathematical Modelling and Computer Simulation
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| Date |
2008
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| Type |
Monograph
NonPeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cir.cmmacs.ernet.in/169/1/parvez%2DPR%20CM0801.pdf
Parvez, Imtiyaz A (2008) Seismic Microzonation: The Indian Initiaves. Documentation. CSIR Centre for Mathematical Modelling and Computer Simulation, C-MMACS,Bangalore 560037,India. (Unpublished) |
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| Relation |
http://cir.cmmacs.ernet.in/169/
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