Buying a home in Monte San Biagio
6,104 residents at the 2021 census, 2,346 buildings and 65.2 km² of territory, Lazio.
Monte San Biagio is in seismic zone 3 (the region uses the sub-zones 3B): in this zone strong earthquakes are less likely than in zones 1 and 2. According to ISPRA’s mosaic, 10.4% of the territory of Monte San Biagio has high or very high landslide hazard (P3 and P4), with 17.9% of the residents. 0.8% of the territory of Monte San Biagio is in the flood area of the medium-probability scenario (P2), with 0.7% of the residents.
Find your address in Monte San Biagio
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Monte San Biagio compared
| ISPRA indicator | Monte San Biagio | LT | Lazio |
|---|---|---|---|
| Landslide, very high hazard (P4) | 10.4% | 5% | 4.3% |
| Landslide, high hazard (P3) | 0% | 0.2% | 1.2% |
| Landslide, areas of attention | 14.6% | 4.7% | 8.3% |
| Residents in landslide areas P3-P4 | 17.9% | 1.8% | 1.5% |
| Buildings in landslide areas P3-P4 | 13.3% | 2.8% | 3.2% |
| Flood, high probability (P3) | 0.3% | 1.4% | 2.6% |
| Flood, medium probability (P2) | 0.8% | 2.9% | 3.5% |
| Flood, low probability (P1) | 7.9% | 12.4% | 5.7% |
| Residents in P2 flood areas | 0.7% | 1.6% | 3.2% |
| Buildings in P2 flood areas | 0.7% | 2.1% | 3.4% |
Questions
Which seismic zone is Monte San Biagio in?
Monte San Biagio is in seismic zone 3 (the region uses the sub-zones 3B): in this zone strong earthquakes are less likely than in zones 1 and 2.
How much of Monte San Biagio is in landslide class P3/P4?
According to ISPRA’s mosaic, 10.4% of the territory of Monte San Biagio has high or very high landslide hazard (P3 and P4), with 17.9% of the residents. By share of territory with landslide hazard P3-P4, Monte San Biagio ranks 11th of 33 municipalities in the province of Latina.
How much of Monte San Biagio is in flood scenario P2?
0.8% of the territory of Monte San Biagio is in the flood area of the medium-probability scenario (P2), with 0.7% of the residents. By share of territory in the P2 flood area, Monte San Biagio ranks 18th of 33 municipalities in the province of Latina.
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 |
|---|---|---|---|
| Sonnino | 3B | 4.6% | 0.5% |
| Fondi | 3B | 2.1% | 1.3% |
| Amaseno | 3A | 0.9% | 2.7% |
| Vallecorsa | 3A | 1.2% | 0% |
| Terracina | 3B | 7.3% | 8.4% |
| Roccasecca dei Volsci | 3A | 2.3% | 9.7% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on