Evidence of structural segmentation of the Uttarakhand Himalaya and its implications for earthquake hazard

P Mandal, R Prathigadapa, D Srinivas, S Saha… - Scientific Reports, 2023 - nature.com
The earthquake hazard associated with the Main Himalayan Thrust (MHT) is a critical issue
for India and its neighbouring countries in the north. We used data from a dense seismic …

Evidence of low velocity layers at the top and bottom of the Mantle Transition Zone (MTZ) below the Uttarakhand Himalaya, India

P Mandal, S Saha, R Prathigadapa - Scientific Reports, 2024 - nature.com
Abstract The Mantle Transition Zone (MTZ) beneath the Uttarakhand Himalaya has been
modelled using Common Conversion Point (CCP) stacking and depth-migration of radial P …

[HTML][HTML] Fluids, faulting and earthquakes in the brittle crust: recent advances and new challenges

O Fabbri, H Raimbourg… - Comptes …, 2024 - comptes-rendus.academie-sciences …
Interactions between fluids and deformation are widespread in the brittle crust. As
experimentally shown, a high pore fluid pressure pf can fracture intact rocks or reactivate pre …

Internal structure of India: perspectives from a review of the seismological imaging studies from 2020 to 2023

H Paul, VK Gahalaut - Proceedings of the Indian National Science …, 2024 - Springer
The Indian subcontinent is a mosaic of different provinces exhibiting diversity in age,
geology, elastic strength, tectonics, and seismicity. The evolution of most of the provinces …

Evidence for weak azimuthal anisotropy beneath the Kumaon-Garhwal Himalaya

A Devi, SK Roy, J Kanaujia… - Geophysical Journal …, 2024 - academic.oup.com
This study attempts to interrogate the upper mantle deformation pattern beneath the Kumaon-
Garhwal region, located in the western Himalaya, using shear wave splitting (SWS) analysis …

Crustal structure and fault geometries of the Garhwal Himalaya, India: Insight from new high-resolution gravity data modeling and PSO inversion

A Chamoli, SK Rana, D Dwivedi, AK Pandey - Tectonophysics, 2023 - Elsevier
A high-resolution gravity survey from the Indo-Gangetic plain to the MCT zone is carried out
across the Garhwal Himalaya, India, which lies in the central seismic gap. The gravity …

[HTML][HTML] Detection of a cracked and fluid-filled main Himalayan thrust (MHT) and its implications toward the genesis of earthquakes in the Uttarakhand Himalaya

P Mandal - Results in Engineering, 2024 - Elsevier
The present study looks into the significant role of metamorphic and aqueous fluids in the
mid-crustal Main Himalayan Thrust (MHT) in triggering strong to moderate earthquakes in …

[PDF][PDF] INSA national report on seismological research in India: 2019–2022

A Manglik - Authorea Preprints, 2023 - authorea.com
INSA National Report on Seismological Research in India: 2019 – 2022 Page 1 Posted on 29
Mar 2023 — The cop yright holder is the author/funder. All rights reserv ed. No reuse without …

One-dimensional regional shear velocity structure from joint inversion of fundamental mode group velocity dispersion measurements of Love and Rayleigh waves …

AK Gupta, P Mandal, D Srinagesh, A Tiwari, K Sain… - Acta Geophysica, 2023 - Springer
Abstract Between 2017 and 2019, the CSIR-NGRI, Hyderabad, Telangana, established a
broad-band seismic-network with fifty-five 3-component broadband seismometers in the …

Seismic Imaging of the Kumaon-Garhwal Himalaya: Insights into the Main Himalayan Thrust and the Crust-Mantle Boundary

P Mandal, RV Raghavan, S Saha, R Biswas… - 2023 - researchsquare.com
The seismic velocity tomography of reveals a high-velocity (5–20% increase in dV p, 4–16%
increase in dV s, low V p/V s (~ 1.5–1.8)) upper crust between 0 and 20 km depth and a low …