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Fig. 1 | Earth, Planets and Space

Fig. 1

From: Examination of one-dimensional S-wave velocity structure using strong-motion data for high-seismic-intensity area during the 2018 Hokkaido Eastern Iburi earthquake

Fig. 1

Location map of the study area. The top panel shows strong-motion stations and epicenters, and the bottom panel shows microtremor observation sites and a measurement line of surface wave exploration. a The circle denotes the epicenter of the aftershock determined by Katsumata et al. (2019), the diamond denotes the epicenter determined from the JMA (Japan Meteorological Agency) catalog and the star denotes the epicenter determined by F-net. Hokkaido and the study area (red rectangle) are shown in the inset. b The red circles and lines denote the microtremor array observation stations, and the blue line denotes the surface wave measurement line. The white triangles in the two maps denote the strong-motion stations used in this study

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