Seacliff, CA Coastal Erosion Rate
Shoreline change 0.3 miles southwest of Seacliff, CA
Nothing alarming measured 0.3 miles southwest of Seacliff, CA: whatever shift USGS's transects picked up here is too small to call reliably one way or the other, which this site reports as "no significant trend" rather than forcing a direction.
What "Seacliff" means on this page
Seacliff, CA is the nearest named place, 0.3 miles away, to a ~3.5-mile stretch of coast USGS has surveyed - the reading below covers that whole stretch, not a single property in it. Segment center: 36.98, -121.92. 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
This reading comes from 8 individual transects averaged together, 0% of which measured erosion rather than growth. The published margin on this reading runs ±0.36 ft/yr. The unadjusted figure here, 0.18 ft/yr, would place it 915 of 1211 if ranked directly - but an unreliable rank isn't a useful one, which is exactly why "no significant trend" is the headline instead. Source: USGS National Shoreline Change data release (ScienceBase, DOI 10.5066/P94J0K7Z), Kratzmann 2024 / Data Report 1187. For scale: Warrenton, OR, 642 miles away, ranks 1195 of 1211 nationally for growth, 4.41 ft/yr. Seacliff, CA, 0.6 miles off, is the adjacent measured stretch, itself no significant trend.
Not this whole stretch, just Seacliff itself: the Coastal Change Hazards Portal is USGS's own live version of this data.