1 research outputs found
Haiti Earthquake (12.01.2010) Surface Shift Estimation Using TerraSAR-X Data
On the 12th of January 2010, Haiti was struck by a M7.0
earthquake; the hypocenter (18.443°N, 72.571°W, Depth 13
km) was located very close to the capital Port-au-Prince,
causing considerable damage to buildings and infrastructure
in the city and its conurbation and a high number of human
fatalities. For evaluation of the co-seismic surface shift
caused by this earthquake, especially at the Enriquillo-
Plantain Garden fault zone (EPGF), TerraSAR-X Stripmap
data from ascending and descending orbits were acquired
and processed using InSAR and incoherent cross-correlation
techniques.
The results, azimuth and range offset maps, were then
geocoded and corrected for Solid Earth Tides (SET) and
atmospheric propagation delays, as described in Eineder et
al [1] . Each data-set indicated strong surface deformations.
By combining the different viewing geometries and
performing a 3D-Inversion (ascending & descending
crossing directions), 3D-motion vectors, describing the
surface displacements caused by the earthquake could be
generated.
As a reference, pre-seismic and post-seismic
interferometric pairs were processed accordingly. The
results showed no indications for strong deformations and
thus validated the results