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Spatial variation of Coda Q in Kopili fault zone of northeast India as a probe for heterogeneous media

Kopili fault has been experiencing higher seismic and tectonic activity ([1], [2]) during the recent years. These kinds of active tectonics can be inspected by examining coda-wave attenuation and its dependence with frequency. Here, we report spatial variation of coda attenuation of this region. The obtained results reveal that there is velocity anomaly at depth 210-220 km as there arises sharp changes in attenuation coefficient (γ) and frequency parameter (n) which are supported by available data reported by other researchers for this region.

preprint2021arXivOpen access

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