What question did this study set out to answer?

The aim is to derive accurate coseismic displacement fields following the Landers earthquake using differential radar interferometry.

On the derivation of coseismic displacement fields using differential radar interferometry: The Landers earthquake

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Randomized trial maps coseismic displacement fields in California, showing improved accuracy over prior methods.

The aim is to derive accurate coseismic displacement fields following the Landers earthquake using differential radar interferometry.
Utilized data from ERS 1 synthetic aperture radar acquired in April, July, and August 1992.
Generated a high-resolution displacement contour map over an area of 113 km by 90 km.
Compared radar data to traditional measurement techniques for validation.
Achieved a correlation of 0.96 with Global Positioning System measurements.
Resulting displacement contour map displayed a lobed pattern, consistent with theoretical displacement models.
Finer structures indicated local surface fracturing several kilometers from the fault.

Zebker et al. (1994) studied this question.

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