FIGA - 2025
FIGA 2025 - Fourth Triennial Congress of Federation of Indian Geosciences Association 2025

Summary of Abstract Submission



Abstract Submission No.ABS-3.1-0050
Title of AbstractReceiver Function Analysis and H-K Stacking for Crustal Studies in the Delhi Region
AuthorsGokul K*, Mohit Agrawal
OrganisationIndian institute of technology Dhanbad
AddressRoom 33,Diamond hostel ,IIT (ISM) Dhanbad
Dhanbad, JHARKHAND, India
Pincode: 826004
E-mail: 23mc0041@iitism.ac.in
CountryIndia
PresentationPoster
AbstractThe Delhi region is marked by complex tectonics and thick sedimentary cover. The region's limited crustal and Moho study remains debated among the geophysical explorers. Further, the recent earthquake in Delhi and its proximity proved that understanding the crustal structure beneath this area is crucial for both geodynamic models and seismic hazard studies. Receiver function (RF) analysis provides a robust means of probing subsurface discontinuities by utilizing P-to-S converted phases from teleseismic events. Further, use of H�K stacking constrains crustal thickness (H) and the Vp/Vs ratio (κ), which are key parameters for imaging the Moho and characterizing crustal composition. In this study, broadband teleseismic data from stations in and around Delhi are utilized to generate receiver functions and estimate crustal thickness and Poisson's ratio. Waveforms from events in the 30��90� epicentral distance range are used, and weighting strategies are applied to reduce trade-offs between H and κ. The H�K stackin
KeywordsReceiver Functions; H-K Stacking; Crustal Thickness; Delhi Region Seismotectonics.