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Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

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. 1

Map showing the location of the prediction KUMA and reference SEVO sites (a) and 2D arrays geometry (b). Panel a: distribution of earthquakes belonging to the Kumamoto sequence for which recordings at the sites are available (red circles). The epicenter of the Mj 5.9 (Step 2) aftershock and the Mj 6.5 (Step 3) and Mj 7.3 mainshocks are shown as yellow stars. Panel b: deployment geometry for the KUM-LL, KUM-M and KUM-SM arrays around the prediction site KUMA (Kumamoto plain). KUM-SS1 and KUM-S arrays have similar geometry but are not visible at the scale of the image due to their lower aperture (side lengths of the larger triangular geometry of about 20 m for KUM-S and 2 m for KUM-SS1)

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