Dear Authors,

reviewer reports on your manuscript read very positive, and according to these I agree your manuscript should be published in our Journal subject to minor revisions.
To continue with the closed peer-review process, please submit your revised manuscript together with a point-per-point reply to the comments made by the reviewers, and a manuscript version highlighting the applied changes. After resubmission your paper will be reviewed again by the Editor.

Best regards, A. Günther

Dear Authors,

Your paper submitted to NHESS can now be accepted for publication, subject to some technical corrections that should be applied before publication:
P3, L6-11: There is a broad body of literature on spatial landslide susceptibility analysis to delineate PRA utilizing even more DTM parameters beyond slope, aspect, curvature. I would recommend citing suitable review papers on landslide susceptibility analysis here.
P4, L4: The statement that AML scripts cannot be executed with current software is questionable. See http://desktop.arcgis.com/de/arcmap/10.3/analyze/creating-tools/using-amls-with-script-tools.htm.
Figure 1: For an international readership, it is difficult to figure out the position of the study sites when first looking at Figure 1. These are indicated in Figure 8, so at least a reference to this Figure should be given in the caption of Figure 1.
P10, L1: “The issue with PRA delineation”: Maybe rephrase to “the above mentioned issues concerning PRA delineation…”
P11, L4: Which normal vectors are meant? Normal vectors on topographic surfaces defined by grid cells? Are the values shown in Figure 5 in degrees? Please explain.
Figure 5: Please label sub-figures as a, b, c, d, e, f (similar to Fig. 6) and refer to in the caption. Please show the location of the plotted area in an overview map, or by plotting a corresponding box in any of the smaller scaled Figures covering the area shown in this Figure.
In Figures 6 and 7, a scale bar and (again) information on the location of the plotted area is missing. Are subregions of Figure 5 plotted here? If so, please plot a respective box in Figure 5.
Figure 8: In the inset map, please increase the visibility of the outline of Switzerland. Please plot boxes of the areal extents of Figures 5,6, 7 in the large map, if appropriate, and refer to in the caption(s).

Best regards, A. Günther