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The Ratio test (R) threshold, the statistical (ST), and the geological (GT) thresholds used for a Madonna del Sasso case study.
| Displacement Type | R | ST | GT |
|---|---|---|---|
| Short term (Hourly to daily) | ≥4 | ≥2σ | Not yet defined |
| Long term (Monthly to semester) | ≥4 | ≥2σ | >3 mm/100 days (≈11 mm/year) |
