Buying a home in Colle San Magno
636 residents at the 2021 census, 614 buildings and 45 km² of territory, Lazio.
Colle San Magno is in seismic zone 1: the most hazardous zone: the probability of a strong earthquake is high. According to ISPRA’s mosaic, 26.7% of the territory of Colle San Magno has high or very high landslide hazard (P3 and P4), with 15.1% of the residents. 0% of the territory of Colle San Magno is in the flood area of the medium-probability scenario (P2), with 0% of the residents.
Find your address in Colle San Magno
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Colle San Magno compared
| ISPRA indicator | Colle San Magno | FR | Lazio |
|---|---|---|---|
| Landslide, very high hazard (P4) | 26.7% | 14.4% | 4.3% |
| Landslide, high hazard (P3) | 0% | 0.4% | 1.2% |
| Landslide, areas of attention | 54.9% | 27.8% | 8.3% |
| Residents in landslide areas P3-P4 | 15.1% | 7% | 1.5% |
| Buildings in landslide areas P3-P4 | 25.1% | 7.2% | 3.2% |
| Flood, high probability (P3) | 0% | 1.6% | 2.6% |
| Flood, medium probability (P2) | 0% | 2.2% | 3.5% |
| Flood, low probability (P1) | 0% | 2.9% | 5.7% |
| Residents in P2 flood areas | 0% | 2.3% | 3.2% |
| Buildings in P2 flood areas | 0% | 2.4% | 3.4% |
Questions
Which seismic zone is Colle San Magno in?
Colle San Magno is in seismic zone 1: the most hazardous zone: the probability of a strong earthquake is high.
How much of Colle San Magno is in landslide class P3/P4?
According to ISPRA’s mosaic, 26.7% of the territory of Colle San Magno has high or very high landslide hazard (P3 and P4), with 15.1% of the residents. By share of territory with landslide hazard P3-P4, Colle San Magno ranks 16th of 91 municipalities in the province of Frosinone.
How much of Colle San Magno is in flood scenario P2?
0% of the territory of Colle San Magno is in the flood area of the medium-probability scenario (P2), with 0% of the residents. By share of territory in the P2 flood area, Colle San Magno ranks 67th of 91 municipalities in the province of Frosinone.
Guides: seismic zone · landslides and floods · what to check before an offer. OMI prices: GEOPOI (how to read them).
Nearby municipalities
| Municipality | Seismic zone | Landslide P3-P4 | Flood P2 |
|---|---|---|---|
| Castrocielo | 2A | 20.3% | 2.7% |
| Casalattico | 1 | 41% | 0.8% |
| Roccasecca | 2A | 9.9% | 3.3% |
| Terelle | 1 | 29.6% | 0.7% |
| Santopadre | 1 | 13% | 0% |
| Belmonte Castello | 1 | 46.1% | 0% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on