Kilauea, HI Coastal Erosion Rate
What USGS measures 1 miles northwest of Kilauea, HI
Nothing alarming measured 1 miles northwest of Kilauea, HI: 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.
The grain of this number
Kilauea, HI is the nearest named place, 1 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: 22.23, -159.41. The survey behind it runs to 2007-2010, in USGS's Hawaii assessment, using the WLR 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.
What backs this reading up
This reading comes from 15 individual transects averaged together, 100% of which measured erosion rather than growth. Uncertainty on this specific number: 0.6 ft/yr either side. The unadjusted figure here, -0.35 ft/yr, would place it 375 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 Open-File Report 2011-1009. Camp Pendleton South, CA sits at national rank 1102 for growth (0.98 ft/yr), one reference point among the 1211 scored segments, 2659 miles from here. Kilauea, HI, 0.4 miles off, is the adjacent measured stretch, itself no significant trend.
One address near Kilauea: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.