Malibu, CA Coastal Erosion Rate
Is the coast eroding 0.8 miles east of Malibu, CA?
The coast 0.8 miles east of Malibu, CA shows no statistically significant trend either way. USGS's transects measured a rate here, but it's smaller than the survey's own margin of error for this stretch, so calling it "eroding" or "growing" would overstate what the data actually shows.
What this reading actually covers
Nothing here is parcel-level. USGS's raw transects run every few hundred feet along the shore; this page averages the ones nearest Malibu, CA into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 34.03°N, 118.75°W. The survey behind it runs to 1852-2016, in USGS's California assessment, using the LRR method. Shoreline surveys aren't repeated every year, so this is the most recent long-term measurement USGS has published for this coast, not a live reading.
Where this fits nationally
Averaging 81 separate transects produced this segment's rate, with 48% individually reading as erosion, rather than relying on any single survey line. Uncertainty on this specific number: 0.09 ft/yr either side. Taken at face value, this segment's raw 0 ft/yr reading would land it 776 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS National Shoreline Change data release (ScienceBase, DOI 10.5066/P94J0K7Z), Kratzmann 2024 / Data Report 1187. Rank 990 nationally for growth belongs to Fort Myers Beach, FL, 2245 miles from this stretch, measured at 0.39 ft/yr. 1.5 miles up the coast, Malibu, CA shows the same lack of a significant trend.
Malibu, CA on the source map: try the Coastal Change Hazards Portal, zoomable well past this page's ~3.5-mile grain.