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First Order Seismic Microzonation of Delhi, India Using Geographic Information System (GIS)

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  • William Mohanty
  • M. Walling
  • Sankar Nath
  • Indrajit Pal

Abstract

A first order seismic microzonation map of Delhi is prepared using five thematic layers viz., Peak Ground Acceleration (PGA) contour, different soil types at 6 m depth, geology, groundwater fluctuation and bedrock depth, integrated on GIS platform. The integration is performed following a pair-wise comparison of Analytical Hierarchy Process (AHP), wherein each thematic map is assigned weight in the 5-1 scale: depending on its contribution towards the seismic hazard. Following the AHP, the weightage assigned to each theme are: PGA (0.333), soil (0.266), geology (0.20), groundwater (0.133) and bedrock depth (0.066). The thematic vector layers are overlaid and integrated using GIS. On the microzonation theme, the Delhi region has been classified into four broad zones of vulnerability to the seismic hazard. They are very high (> 52%), high (38–52%), moderate (23–38%) and less ( > 23%) zones of seismic hazard. The “very high” seismic hazard zone is observed where the maximum PGA varies from 140 to 210 gal for a finite source model of M w 8.5 in the central seismic gap. A site amplification study from local and regional earthquakes for Delhi region using Delhi Telemetry Network data shows a steeper site response gradient in the eastern side of the Yamuna fluvial deposits at 1.5 Hz. The ‘high’ seismic hazard zone occupies most of the study area where the PGA value ranges from 90 to 140 gal. The ‘moderate’ seismic hazard zone occurs on either side of the Delhi ridge with PGA value varying from 60 to 90 gal. The ‘less’ seismic hazard zone occurs in small patches distributed along the study area with the PGA value less than 60 gal. Site response studies, PGA distribution and destruction pattern of the Chamoli earthquake greatly corroborate the seismic hazard zones estimated through microzonation on GIS platform and also establishes the methodology incorporated in this study. Copyright Springer 2007

Suggested Citation

  • William Mohanty & M. Walling & Sankar Nath & Indrajit Pal, 2007. "First Order Seismic Microzonation of Delhi, India Using Geographic Information System (GIS)," 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. 40(2), pages 245-260, February.
    • Handle: RePEc:spr:nathaz:v:40:y:2007:i:2:p:245-260
    DOI: 10.1007/s11069-006-0011-0
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    References listed on IDEAS

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    1. Sankar Kumar Nath, 2004. "Seismic Hazard Mapping and Microzonation in the Sikkim Himalaya through GIS Integration of Site Effects and Strong Ground Motion Attributes," 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. 31(2), pages 319-342, February.
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    1. H. Mandal & P. Khan & A. Shukla, 2014. "Soil responses near Delhi ridge and adjacent regions in Greater Delhi during incidence of a local earthquake," 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. 70(1), pages 93-118, January.
    2. G. Joshi & M. Sharma, 2011. "Strong ground-motion prediction and uncertainties estimation for Delhi, 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. 59(2), pages 617-637, November.
    3. P. Anbazhagan & Athul Prabhakaran & H. Madhura & Sayed S. R. Moustafa & Nassir S. N. Al-Arifi, 2017. "Selection of representative shear modulus reduction and damping curves for rock, gravel and sand sites from the KiK-Net downhole array," 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. 88(3), pages 1741-1768, September.
    4. Ali Shafiee & Mohsen Kamalian & Mohammad Jafari & Hossein Hamzehloo, 2011. "Ground motion studies for microzonation in 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. 59(1), pages 481-505, October.
    5. Masoud Taghvaei & Neda Rahmani & Mahsa Akrami, 2016. "An Analysis on Locating and Finding the Most Appropriate Option in Order to Shifting Capital in Iran," Modern Applied Science, Canadian Center of Science and Education, vol. 10(8), pages 1-18, August.
    6. William Mohanty & M. Walling, 2008. "Seismic hazard in mega city Kolkata, 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. 47(1), pages 39-54, October.
    7. Muge Akin & Tamer Topal & Steven Kramer, 2013. "A newly developed seismic microzonation model of Erbaa (Tokat, Turkey) located on seismically active eastern segment of the North Anatolian Fault Zone (NAFZ)," 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. 65(3), pages 1411-1442, February.
    8. Diana L. Jaimes & Christian R. Escudero & Karen L. Flores & Araceli Zamora-Camacho, 2023. "Multicriteria seismic hazard and social vulnerability assessment in the Puerto Vallarta metropolitan area, Mexico: toward a comprehensive seismic risk analysis," 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. 116(2), pages 2671-2692, March.
    9. R. Sivakumar & Snehasish Ghosh, 2017. "Determination of threshold energy for the development of seismic energy anomaly model through integrated geotectonic and geoinformatics 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. 86(2), pages 711-740, March.
    10. Navdeep Agrawal & Laxmi Gupta & Jagabandhu Dixit, 2021. "Assessment of the Socioeconomic Vulnerability to Seismic Hazards in the National Capital Region of India Using Factor Analysis," Sustainability, MDPI, vol. 13(17), pages 1-19, August.
    11. D. Shukla & C. Dubey & A. Ningreichon & R. Singh & B. Mishra & S. Singh, 2014. "GIS-based morpho-tectonic studies of Alaknanda river basin: a precursor for hazard zonation," 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. 71(3), pages 1433-1452, April.
    12. Sreevalsa Kolathayar, 2021. "Recent seismicity in Delhi and population exposure to seismic hazard," 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. 109(3), pages 2621-2648, December.
    13. Naveen James & T. Sitharam & G. Padmanabhan & C. Pillai, 2014. "Seismic microzonation of a nuclear power plant site with detailed geotechnical, geophysical and site effect studies," 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. 71(1), pages 419-462, March.

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