Earthquake identity and classification need reconciliation
For 1 September 2026 UTC, 427 stored rows were compared with 384 current USGS preferred event IDs: 375 earthquakes, six quarry blasts and three explosions. All 384 were present locally, but nine native non-earthquakes were classified as earthquakes. Thirty-two additional local rows matched provider aliases; eleven local IDs remained unresolved. This bounded comparison does not establish whole-archive completeness.