Fig. 3
Strain rate maps from PlanetScope pixel tracking displacement time series. Strain rate maps are draped on pre-catastrophic failure lidar hillshade. (a–d) Dilatation and (e–h) maximum shear rate from sequential image pairs 110 days, 27 days, 6 days, and 4 days before catastrophic failure. Solid black or gray line shows the pre-catastrophic failure landslide boundary. Dashed black or gray line shows the catastrophic failure area including the landslide scar and deposit. Black and white dashed line shows the location of California State Highway 1 (CA 1). Note that these strain rate maps were selected to show the development of the landslide slip-surface boundaries prior to catastrophic failure of the landslide.
