Subsidence feature length

Official statewide database of voluntarily reported land-subsidence incidents maintained by the Florida Geological Survey. The current public ArcGIS point layer emits report identity, reported event and revision dates, verification code, coordinates and location precision, PLSS geography, report source/name, reported dimensions and site observations, repair/property-damage indicators, comments, and four related coded tables for topography, possible triggers, pre-collapse indicators, and land use. It is not a sinkhole-certification or hazard-prediction product: most incidents were not field checked, cause and many locations are unverified, and reporting is not mandatory or complete. The service exposed 4,443 records when checked; a latest reported-event date of 2026-08-01 was observed, but no fixed update cadence or database-wide currency/version field is documented and historic-moment queries are unsupported.