As previously noted in the Coastal Erosion Hazard, four of the five erosion hazard areas are primary areas of concern to Cannon Beach for landslides. All of the landslide hazard areas are problematic due to a combination of drainage and coastal erosion. The four landslide areas documented under the Coastal Erosion Hazard section are Falcon Cove/Cove Beach, Silver Point, the "S-curves", and Ecole State Park.
Clatsop County's Plan identifies a number of locations within the County that are at risk of landslides. Due to Cannon Beach's location along the coast, landslides primarily occur during rain and/or coastal erosion events. Beyond this, regional landslides can cause regional commerce and transportation difficulties.
Clatsop County estimates a 'high' probability that landslides will occur in the future; meaning one incident is likely within a 10-35 year period. Cannon Beach estimates a 'moderate' probability due to its more level topography. Clatsop County estimates a 'moderate' vulnerability to landslides, and the same would be true for Cannon Beach as well. Potential community impacts are adequately described in Clatsop County's Landslide Hazard Annex.