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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: From ambient vibration data analysis to 1D ground-motion prediction of the Mj 5.9 and the Mj 6.5 Kumamoto earthquakes in the Kumamoto alluvial plain, Japan

Fig. 2

a Shallow Vp and Vs models obtained from PS logging (OYO 2020) and from passive geophysical measurements (Chimoto et al. 2016). The horizontal dotted lines show the subdivision between the main shallow geological units from geotechnical investigation (OYO 2020). b Shallow density model by Chimoto et al. (2016). c Vp, Vs and density (d) vertical structures from the Japan Integrated Velocity Structure Model (JIVSM, Koketsu et al. 2012) and the Japan Seismic Hazard Information System by (J-SHIS ver.2, NIED)

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