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Calculation of coseismic displacement from lidar data in the 2016 Kumamoto, Japan, earthquake

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Figure

Figure 1. Map of the near-source area of the 2016 Kumamoto earthquake, showing the areas of the pre-event DSM (black solid polygon)and the post-event DSM (black dashed polygon), the distribution of the GNSS and seismic stations, active fault lines in Japan (red lines), andepicenters (Mw 6.2 14 April 2016; Mw 7.1 16 April 2016).
Figure 2. DSMs acquired by Asia Air Survey Co., Ltd. (2016) on 15 April 2016 (pre-event DSM) and 23 April 2016 (post-event DSM).
Figure 4. Example of coseismic displacement extracted from lidar data: (a) aerial image of buildings near the Mashiki KiK-net stationacquired on 15 April 2016; (b) color composite of the post-event (red) and pre-event (cyan) DSMs for the same area where the yellow arrowsdepict the direction and amplitude of the coseismic displacement.
Figure 6. Illustration of noise generated in the coseismic displacement for a window of size 201 × 201 pixels (a) and 101 × 101 pixels (b).The black square in the inset map shows the area of the main figure.
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