Solid Earth and Earthquake Precursors Group
Core competence
- Investigating the underlying causes of earthquakes by studying the deep Earth structure (Crust, Mantle, Core) through receiver function analysis, seismic tomography, surface wave dispersion, and shear wave splitting to assess anisotropy.
- Identifying short-term earthquake precursors through the analysis of multi-parametric geophysical data and ionospheric anomalies derived from space-based observations.
Significant contributions
- Two distinct shear wave splitting orientations were identified in the northwestern Deccan Volcanic Province, reflecting fault-aligned stress (E–W) and absolute plate motion (NE–SW).
- Seismic evidences for Underplating and Uplifted Crust beneath the Northwestern Deccan Volcanic Province, India
- Ionospheric disturbances with the time of Occurrence, magnitude and location of the earthquakes (M6.5) near the Indian sub-continent.
- Identification of earthquake precursors in soil radon-222 data of Kutch, Gujarat, India using empirical mode decomposition based Hilbert Huang Transform
- Singular spectrum analysis on soil radon time series (222Rn) in Kachchh, Gujarat, India: detection of periodic oscillations and earthquake precursors
- Statistical characteristics of low latitude Pc4s: Influence of Solar wind and IMF parameters
- Patterns of geomagnetic Pc1 pulsations in different solar cycles in the near-equatorial region from the Indian subcontinent
- Low latitude Pi2 pulsations at Desalpar, Gujarat, India: A statistical analysis of the influences of magnetic storms/substorms, seasons, and solar cycles.
- Pre-earthquake Atmospheric and Ionospheric Anomalies before Taiwan Earthquakes (M 6.1 and M 6.4) on February (4th and 6th), 2018; New Zealand earthquake on 13th November 2016 (M 7.8) and Nepal Earthquakes on 25 th April and 12 th May 2015
- Radiological risk assessment of soil radon (222Rn)/ thoron (220Rn) and drinking water in Gandhinagar city
- Assessment of contamination level of radon (222Rn) in drinking water around Tulsishyam geothermal area/Savarkundla fault in Saurashtra and Unai hotspot,
- Multifractal detrended fluctuation analysis of soil radon in the Kachchh Region of Gujarat, India to identify earthquake precursors
- Ultra-low frequency geomagnetic variations before Dholavira earthquake (M 5.1) on 20th June 2012 and June 14, 2020, Earthquake (M= 5.3) in Kachchh
Current pursuits
- Radiological Risk Assessment in Soil and Water of the Unai Geothermal Region, Gujarat, India: Implications for Environmental and Public Health
- Crustal anisotropy from shear-wave splitting of local earthquakes in the epicentral zone of the Mw 7.7 Bhuj 2001 earthquake in Gujarat, India
- Upper Mantle anisotropy beneath Kachchh, NWDVP using Shear Wave Splitting
- Seismic evidence of magmatic underplating in the epicentral zone of 2001 Bhuj earthquake, Kachchh region, Gujarat, Western India: P-Receiver function perspective
- Mantle Transition Zone dynamics beneath the Northwestern Deccan Volcanic Province, India: Implications for Plume mediated Upper Mantle Processes
- Tectonic Implications of Crustal Azimuthal Anisotropy beneath the Bhujepicentral zone, Kachchh region, Gujarat, Western India through Ps Splitting
- Spectral and Temporal Analysis of ULF Magnetic Bursts Related to Earthquakes: Evidence from Long-Term Induction Coil Magnetometer Observations (2012–2024)
- Soil Gas Radon Emissions along Active Fault Zones in Kachchh, Western India:: Indicators of Tectonic Activity and Environmental Risk
- Multifractal Analysis of Gravity Data from a Superconducting Gravimeter in Kachchh, Western India
- Machine Learning Techniques for Identifying Earthquake Pre-Seismic Signals in Superconducting Gravity Data: A Case Study in Kachchh, Gujarat
- Seismic velocity structure beneath Kachchh region by RF inversion using neighbourhood algorithm.
Personnel
- Dr. K. Madhusudhana Rao (PI), Scientist-E
- Dr.Sushanta Kumar Sahoo, Sr. Geophysicist (Contract)
- Dr.PrasannaSimha, Sr. Geophysicist (Contract)