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Seismic Microzonation of Delhi

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Department of Science and Technology has undertaken the project of Microzonation study for Delhi.
The first level Microzonation study related to Geo-Scientific classification has been prepared

Phase I - First order seismic zonation map

Activity Institution
  1. Geological Map
    - Lithological Unit
    - Geomorphological Unit
    - Structural Mode
 IITD, DU, GSI
  1. Seismotectonics
    - Sources
    - Focal Mechanism
    - Earthquake Catalogue
    - Lineaments / Faults
    - Attenuation Law
 IMD, IITD, CBRI, GSI, NGRI
  1. Bed Rock Contour Map
 IITD, GSI, NGRI
  1. Geotechnical Map
    - Soil Profile
    - Velocity Profile (Vp, Vs, Vr, Vl)
    - Density, Plasticity
    - GSD, c, f, E, n
    - Lithological Unit
 IITD
  1. Hydrogeological Map
    - Water Table Contours
    - Fluctuations
    - Potential
 CGWB, IITD&
  1. Ground Motion Studies
    - PGA
    - Amplificatiom and Filtering
    - Response Spectrum
 IMD, IITD, DU, IITR, CBRI
  1. Liquefaction Studies
    - Laboratory Testing
    - Field Testing
 IITD, CSMRS


Phase II - Authentication and Generation of Data

Activity Institution
  1. Geological Field Study
    - Active Faults, Joints
    - Weathering Profiles
    - Attitudes, Orientations
    - Lithological Units
 IITD, GSI, WIHG, DU
  1. Modelling
    - Seismic Recording
    - DSS
    - Gravity
    - Electro-Magnetic

- Resistivity
- GPS
IMD, IITD, CBRI
NGRI
WIHG, NGRI
IIG, NGRI
IITD, NGRI
C-MAMC, IIG, WIHG
  1. Soil Characteristics
    - Bore Hole, Undistributed Samples
    - SPT, CPT, DCPT

- Dynamic Triaxial Tests
- GSD, Relative Density

- Dynamic Properties

 IITD, DDA, CPWD, CRRI
  1. Ground Motion Studies
    - PGA
    - Amplification
    - Response Spectrum
    - Lithological Units
 IITD, IITR, IMD
  1. Software Development, Modeling Data Analysis
 IITD, IITR, C-DAC


Phase III - Seismic Hazard and Risk Assessment

Activity Institution
  1. Synthetic Seismograms, Site Effects, PGS Distribution Map of Delhi, Liquefaction Potential
 IITD, NGRI, IITR, IMD
Building Typology IITD, DCE, SPA, DDA, CPWD
Vulnerability Assessment IITD, IITR, SPA
Life Line Structures IITD, DPWD, DCE, JAMIA, DIT
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