Geologic Characteristics
Four of the hotspots were located on barrier islands while the other two were located on mainland beaches. The upper beaches around the hotspot were mostly flat or had a single, primary dune. A bluff or scarp was reported for Surfside, CA, which coincides with the extremely high erosion rate reported for the hotspot in that area (35m/yr). The beaches at the location of the hotspots were often straight or had beach cusps.
