Sereno del Mar, CA Coastal Erosion Rate
What USGS measures 1.3 miles northwest of Sereno del Mar, CA
Nothing alarming measured 1.3 miles northwest of Sereno del Mar, 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 this reading actually covers
Sereno del Mar, CA is the nearest named place, 1.3 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: 38.40, -123.09. Survey years: 1852-2016, method LRR, from USGS's California shoreline-change assessment. That's how current the data is here, real, but not a live feed, since a shoreline survey is a major undertaking, not an annual check-in.
How solid is this number
This reading comes from 51 individual transects averaged together, 47% of which measured erosion rather than growth. The published margin on this reading runs ±0.3 ft/yr. The unadjusted figure here, 0.01 ft/yr, would place it 784 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: Gardiner, OR, 375 miles away, ranks 1082 of 1211 nationally for growth, 0.82 ft/yr. Jenner, CA, 3.3 miles off, is the adjacent measured stretch, itself no significant trend.
One address near Sereno del Mar: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.