Applying the precise rectification algorithm + subpixel correlation:
The 1999 Hector-Mine earthquake (Mw 7.1, California)



Horizontal Co-seismic deformation retrieved from SPOT imagery:





Obtaining the Data (available in ENVI file Format. Load banbs as gray scale images. Bands are: N/S offsets, E/W offsets, SNR):
Raw and filtered results:
HectorMine.zip


Pre-earthquake image:
SPOT 4, acquisition date: 08-17-1998
Ground resolution: 10m

Post-earthquake image:
SPOT 2, acquisition date: 08-18-2000
Ground resolution: 10m

Offsets measured from correlation:
Correspond to sub-pixel offsets in the raw images.
Correlation windows: 32 x 32 pixels
96m between two measurements



SPOT and Aerial photography complementarity: