West Salt Creek Rock Avalanche

Seismic recording of forces exerted on the earth as the avalanche occurred. Dashed lines show intervals corresponding approximately to 8 segments of the path shown on the image below and described in the text.The bottom image is the post-event lidar shaded-relief map showing the outline of deposits, approximate path, and direction of forces corresponding to peaks in the seismic recording placed at their approximate corresponding geographic locations. Circles are plotted at the point of peak curvature of the path. Ridges 1–4 (r1–r4) are indicated with red lines.