Abstract
Surface changes and displacement caused by earthquake and volcanic activities can be detected by satellite radar interferometric technology using L-band JERS-1 SAR images. For the detection of the coseismic deformation of the Hyogoken-nanbu earthquake, interferometric analysis shows 0.6 meter surface displacement along the radar line-of-sight direction around Kobe City and 1.1 meter displacement in Awaji Island where epicenter is located. For the detection of volcanic body deformation in Iwo-jima, the analysis shows concentric circular subsiding displacement that agrees with the results of ground measurement.
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