OUT-OF-SAMPLE DATA AVAILABILITY REPORT Run date: 2026-04-22 OOS window: 2020-01-01 → 2025-04-29 (constrained by NMDB) NMDB stations with ≥50% OOS coverage: 30 AATB coverage= 94.7% last=2026-04-20 APTY coverage= 99.8% last=2026-04-21 ATHN coverage= 89.7% last=2026-04-21 BKSN coverage= 98.6% last=2026-04-21 DOMB coverage= 84.8% last=2026-04-20 DOMC coverage= 96.9% last=2026-04-20 FSMT coverage= 87.5% last=2025-07-26 INVK coverage= 87.6% last=2025-07-26 IRK3 coverage= 58.0% last=2025-05-22 IRKT coverage= 90.1% last=2026-04-21 JUNG coverage= 99.8% last=2026-04-21 JUNG1 coverage= 99.6% last=2026-04-21 KERG coverage= 97.1% last=2026-02-28 KIEL2 coverage= 59.3% last=2023-10-03 LMKS coverage= 55.9% last=2023-07-10 MOSC coverage= 82.9% last=2025-03-23 MRNY coverage= 77.6% last=2025-02-28 MXCO coverage= 88.2% last=2025-10-13 NAIN coverage= 85.2% last=2025-05-29 NANM coverage= 57.2% last=2024-11-14 NEWK coverage= 87.6% last=2025-07-26 NRLK coverage= 68.0% last=2025-04-29 OULU coverage= 99.8% last=2026-04-21 PSNM coverage= 95.1% last=2026-04-19 PWNK coverage= 87.6% last=2025-07-26 ROME coverage= 84.9% last=2026-04-21 SOPB coverage= 87.7% last=2025-07-25 SOPO coverage= 87.7% last=2025-07-25 TERA coverage= 94.7% last=2026-02-28 THUL coverage= 87.6% last=2025-07-26 USGS: years available = [2020, 2021, 2022, 2023, 2024, 2025, 2026] events = 47,860 SIDC: last_date = 2026-03-31 (provisional note: Using provisional values (prov=1); definitive lag ~6 months)