Application of Crustal Deformation Monitoring Using Synthetic Aperture Radar (SAR) for Seismological and Volcanological Studies

The power of interferometric Synthetic Aperture Radar (SAR) when applied to studies of crustal deformation has been fully demonstrated by Massonnet et al. (1993, 1994) and Zebker et al. (1994) for the Landers, California earthquake of June 28, 1992. This method is unique in its capability of providing a two-dimensional representation of a deformation with a dense spatial coverage over most of the globe. Since 1994, the Geographical Survey Institute (GSI) has been conducting a study on applications of differential InSAR (Interferometric SAR) for the detection of crustal deformations associated with earthquakes and volcanic activities. Crustal deformations of many episodes were mapped by InSAR, such as those due to the 1994 Northridge earthquake, the 1995 Hyogo-ken Nanbu earthquake, the 1995 Neftegorsk earthquake, and volcanic deformations of Mt. Iwate and Mt. Usu. These interferograms played an important role in constructing geophysical models.

[1]  R. Goldstein,et al.  Mapping small elevation changes over large areas: Differential radar interferometry , 1989 .

[2]  K. Feigl,et al.  The displacement field of the Landers earthquake mapped by radar interferometry , 1993, Nature.

[3]  K. Feigl,et al.  Radar interferometric mapping of deformation in the year after the Landers earthquake , 1994, Nature.

[4]  Charles Werner,et al.  On the derivation of coseismic displacement fields using differential radar interferometry: The Landers earthquake , 1994 .

[5]  Satoshi Fujiwara,et al.  Coseismic crustal deformations of 1994 Northridge, California, earthquake detected by interferometric JERS 1 synthetic aperture radar , 1996 .

[6]  Satoshi Fujiwara,et al.  Synthetic aperture radar interferogram of the 1995 Kobe Earthquake and its geodetic inversion , 1997 .

[7]  Paul A. Rosen,et al.  Crustal deformation measurements using repeat‐pass JERS 1 synthetic aperture radar interferometry near the Izu Peninsula, Japan , 1998 .

[8]  Paul A. Rosen,et al.  Deformation of the 1995 North Sakhalin earthquake detected by JERS-1/SAR interferometry , 1998 .

[9]  Pierre Briole,et al.  Volcano‐wide fringes in ERS synthetic aperture radar interferograms of Etna (1992–1998): Deformation or tropospheric effect? , 2000 .

[10]  Paul A. Rosen,et al.  2.5‐D surface deformation of M6.1 earthquake near Mt Iwate detected by SAR interferometry , 2000 .

[11]  T. Sagiya,et al.  The M6.1 earthquake triggered by volcanic inflation of Iwate Volcano, northern Japan, observed by satellite radar interferometry , 2001 .