Mapping the Runout of Coastal Cliff Landslides in San Diego County, California to Improve Public Safety
Date:
Authors: Catriona Thompson, Adam Young, Connor J. Mack
Analyzed over 700 LiDAR surveys spanning 2002-2023 across a 30-kilometer study area to measure debris runout distances from cliff bases. Using digital elevation models, examined cliff geometry and landslide propagation at one-meter resolution alongshore. Findings indicate that steeper and taller cliffs generated larger maximum runout distances and a wider landslide hazard zone on the beach.