3D structural modelling of the Kopili fault zone in North-East India: Seismotectonic analysis utilising focal mechanism solutions of small-to-moderate earthquakes

N Bora, P Büyükakpınar, S Das - Journal of Asian Earth Sciences, 2024 - Elsevier
This work presents new findings from recent seismic data which have never been exploited
so far for the weak-to-moderately energetic (ML 2.3–6.4) earthquakes and to depict a 3D …

Simulation of strong ground motion for a potential Mw7.3 earthquake in Kopili fault zone, northeast India

AK Sutar, M Verma, BK Bansal, AP Pandey - Natural Hazards, 2020 - Springer
In this study, we present the results of strong ground motion simulation carried out for a
potential earthquake (M w 7.3) in the Kopili source zone of northeast India using the …

An investigation of regional variations of coda wave attenuation in western Tibet

R Biswas, C Singh - Journal of Seismology, 2020 - Springer
Regional variations of coda wave attenuation (Q c− 1 Q_c^-1) have been analyzed for
western Tibet using single isotropic scattering model. A total of 628 local earthquakes …

Estimation of Seismic Attenuation from Ambient Noise Coda Waves: Application to the Hellenic Subduction Zone

P Ranjan, L Stehly - Bulletin of the Seismological Society …, 2024 - pubs.geoscienceworld.org
The decay of surface‐wave coda in ambient noise cross correlations can facilitate the
estimation of seismic attenuation. The coda quality factor (Q c) can be measured in longer …

Estimation of Coda Q Wave Attenuation Factors for Northern Iraq

FK Khagoory, AM Al-Rahim - The Iraqi Geological Journal, 2023 - igj-iraq.org
The coda wave decay method was used to estimate the quality factor from the coda wave
amplitude decay rate for the broadband seismic stations in northern Iraq using a single back …

Variations of intrinsic and scattering seismic attenuation with depth in western Tibet

R Biswas, C Singh - Physics and Chemistry of the Earth, Parts A/B/C, 2023 - Elsevier
In this study, the depth-dependent seismic wave attenuation beneath western Tibet have
been investigated using 628 local earthquakes recorded at Y2 network operated by US …

Spatial variation of body wave attenuation in Garhwal-Kumaun Himalaya region, India

R Biswas, P Mandal, S Saha, R Prathigadapa… - Physics of the Earth and …, 2024 - Elsevier
We have investigated the spatial variation of body wave attenuation in Garhwal-Kumaun
Himalaya region from the datasets of 465 well located earthquakes, recorded at 52 …

Imaging subsurface structure of an urban area based on diffuse-field theory concept using seismic ambient noise

N Bora, R Biswas, P Malischewsky - Pure and Applied Geophysics, 2020 - Springer
Single station ambient noise measurement in campaign mode has of late gained a huge
popularity among geo-scientists. Herein, we present results of ambient vibration analysis …

Broadband ground motion simulations for Northeast India

S Sangeetha, STG Raghukanth - Soil Dynamics and Earthquake …, 2022 - Elsevier
This study presents broadband (BB) ground motions for two historical earthquakes (M w≥ 8)
in Northeast (NE) India. We apply a recently developed geology-based 3D velocity model of …

Empirical green's function simulations toward site-specific ground motion prediction for kopili fault of NER India

N Bora, S Das - Pure and Applied Geophysics, 2023 - Springer
We report new findings for producing broad-band ground motion time histories (1–19 Hz) of
a future earthquake in a sedimentary basin based on the application of extended rupture …