Journal of The Remote Sensing Society of Japan
Online ISSN : 1883-1184
Print ISSN : 0289-7911
ISSN-L : 0289-7911
Urgent Spetial Issue for Kumamoto Eartquake : Flash
Surface Displacement Around the Ezu Lake and the Suizenji Area Associated with the 2016 Kumamoto Earthquake
Kazuya ISHITSUKATakeshi TSUJIToshifumi MATSUOKA
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2016 Volume 36 Issue 3 Pages 218-222

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Abstract

The 2016 Kumamoto earthquake caused crustal deformation along the ruptured fault. In addition, local surface displacements, which cannot be explained only by the mainshock fault movement, have also been reported previously. In this study, we report local post-seismic surface displacement around the Ezu lake and the Suizenji area using synthetic aperture radar interferometry of ALOS-2/PALSAR-2 data. Based on the hydrological structure beneath the area and the observed drawdown of the water level, the local displacement is likely caused by the groundwater migration associated with the 2016 Kumamoto earthquake.

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© 2016 The Remote Sensing Society of Japan
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