San Simeon, CA Coastal Erosion Rate
Is the coast eroding 10.9 miles northwest of San Simeon, CA?
Nothing alarming measured 10.9 miles northwest of San Simeon, 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 "San Simeon" means on this page
San Simeon, CA is the nearest named place, 10.9 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: 35.70, -121.30. 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.
What backs this reading up
Averaging 50 separate transects produced this segment's rate, with 78% individually reading as erosion, rather than relying on any single survey line. Uncertainty on this specific number: 0.43 ft/yr either side. The unadjusted figure here, -0.15 ft/yr, would place it 570 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: Dunes City, OR, 586 miles away, ranks 1058 of 1211 nationally for growth, 0.67 ft/yr. 2.5 miles away, San Simeon, CA is the nearest other measured stretch: also no significant trend.
One address near San Simeon: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.