Fig. 1 | Scientific Reports

Fig. 1

From: Investigating reservoir-triggered seismicity in the Koyna–Warna region through nodal ambient noise tomography

Fig. 1

Maps of the Koyna–Warna region, showing topography, shallow large earthquakes (M > 5, depth \(\le\) 5 km; red asterisk), seismicity color scaled by depth and compiled from various sources8,9,10, and the stations used in this study (green triangles). In (a) broad geographical features are labeled, while (b) is a zoomed-in map (area under blue rectangle in (a)) highlighting smaller features. Locations of nine cored boreholes are shown in grey solid circles (KBH1 borehole marked). The pilot deep borehole KFD1 is shown using black solid star. KRFZ stands for Koyna River Fault Zone. Profiles A to E along which results are analyzed are also shown in (b) in brown. The maps were generated using Python-v3.8.18 scripts with pygmt-v0.911 and combined using Inkscape-v1.2.212, please see Data Availability section for more details.

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