Scarps in Steep,Terrain Cryptic Faulting in Delta Sediments Complex Rupture Geometry STATISTICS 106 km x 3-5 km footprint ~350 sq. km at ≥9 points/m 2.

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Presentation transcript:

Scarps in Steep,Terrain Cryptic Faulting in Delta Sediments Complex Rupture Geometry STATISTICS 106 km x 3-5 km footprint ~350 sq. km at ≥9 points/m billion pts NSF-RAPID: Airborne LiDAR Survey of the El Mayor-Cucapah Earthquake Surface Rupture (Earthscope & Int’l Programs) UC-Davis (PI Oskin), ASU (Co-PI Arrowsmith) & U. Houston (NCALM)

Cryptic Fault Rupture across Colorado River Delta +8m elevation +4m Fault expressed as warping over tens of meters 0.5 m dextral displacement

Comparison to pre-event INEGI 5m-pixel lidar +1.5m elevation change -1.5m Borrego Fault Paso Inferior F.Z.