New SfM photogrammetry dataset covering parts of the Lost River Fault Zone in Idaho

Sep 23, 2019

OpenTopography is pleased to announce the release of high-resolution topography and orthomosaics of part of the Lost River fault zone (LFRZ), Idaho. The data set covers the northern ~16 km of the surface-rupture that occurred on the LRFZ in the Mw 6.9 1983 Borah Peak Earthquake. Point clouds and digital surface models (DSMs), were generated from low-altitude aerial photographs using Structure-from-Motion and multi-view stereo processing (SfM). The LRFZ is a major, range-bounding, west-dipping normal fault in the northern Basin and Range province. The Mw 6.9 1983 Borah Peak earthquake occurred on it and created surface rupture along the southern portion of the Warm Spring section and the entire Thousand Springs section of the fault

Lost River fault Borah Peak ground rupture
Hillshade of a digital surface model (dsm) showing the Borah Peak earthquake ground rupture scarp.

Slope of TIN w/Faults
Slope of TIN for a section of the Lost River fault zone. Areas colored red indicate steeper slopes. Black lines are the Late Quaternary faults ( less than 15K years) from the USGS Quaternary Fault and Fold Database

Dry Creek Bed
Point cloud over a dry creek bed. Points are colored by elevation