The seismic reflection data for Haiti image clearly that the island in the Bay north of the west end of the Haiti rupture is the emerged part of a giant (100 km x 60 km) thrust anticline. I have no stratigraphic control in the sub-bottom offshore. There may be publications that will give uplift rates of the island (I have not checked). It is highly likely that the flanks of the structure are subsiding, as is most of the offshore southern California Borderland.

I sent a speculative email to our group suggesting a high rate of thrust slip to cause such a structure. The youngest sediments on the flanks of the anticline are folded.

It seems likely that this structure is a serious thrust earthquake and tsunami hazard. There have been historic tsunamis as documented by publications found by HW, but I have not had time to read these.

This bears on where refugees are settled, and on where and how reconstruction is done.

Chris