2.5-D surface deformation of M6.1 earthquake near Mt Iwate detected by SAR interferometry

Details 2.5-D surface deformation of M6.1 earthquake near Mt Iwate detected by SAR interferometry 2.5-D surface deformation of M6.1 earthquake near Mt Iwate detected by SAR interferometry

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.2049f&link_type=abstract

Geophysical Research Letters, Volume 27, Issue 14, p. 2049-2052

Physics

Geophysics

7

Exploration Geophysics: Remote Sensing, Geodesy And Gravity: Seismic Deformations, Structural Geology: Fractures And Faults

Scientific paper

The two-dimensional displacement vector field on the Earth's surface associated with a large earthquake near Iwate volcano in Japan, was mapped by combining satellite radar interferometry images from two different track directions. The displacement reveals not only large main ruptures, but details of many small faults movement of aftershocks and volcanic earthquakes. The displacements of the aftershock faults coincide with a stress field reorganized by the main earthquake that accelerated the aftershock fault movements. The displacements mimic the topography, suggesting that repeated movements of the same faults in the Quaternary have led to the presently existing topography.

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