Buying a home in Semproniano
984 residents at the 2021 census, 1,628 buildings and 81.7 km² of territory, Toscana.
Semproniano is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2. According to ISPRA’s mosaic, 62.3% of the territory of Semproniano has high or very high landslide hazard (P3 and P4), with 35.1% of the residents. 3.1% of the territory of Semproniano is in the flood area of the medium-probability scenario (P2), with 0.4% of the residents.
Find your address in Semproniano
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Semproniano compared
| ISPRA indicator | Semproniano | GR | Toscana |
|---|---|---|---|
| Landslide, very high hazard (P4) | 14.3% | 5.1% | 4.6% |
| Landslide, high hazard (P3) | 48% | 18.6% | 16.4% |
| Landslide, areas of attention | 0% | 0% | 0.6% |
| Residents in landslide areas P3-P4 | 35.1% | 6.9% | 5% |
| Buildings in landslide areas P3-P4 | 41.9% | 11.1% | 8.1% |
| Flood, high probability (P3) | 2.5% | 9.5% | 6.2% |
| Flood, medium probability (P2) | 3.1% | 15.2% | 12.2% |
| Flood, low probability (P1) | 5.6% | 28.5% | 21.2% |
| Residents in P2 flood areas | 0.4% | 8.8% | 25.6% |
| Buildings in P2 flood areas | 0.5% | 8.8% | 22.2% |
Questions
Which seismic zone is Semproniano in?
Semproniano is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2.
How much of Semproniano is in landslide class P3/P4?
According to ISPRA’s mosaic, 62.3% of the territory of Semproniano has high or very high landslide hazard (P3 and P4), with 35.1% of the residents. By share of territory with landslide hazard P3-P4, Semproniano ranks 2nd of 28 municipalities in the province of Grosseto.
How much of Semproniano is in flood scenario P2?
3.1% of the territory of Semproniano is in the flood area of the medium-probability scenario (P2), with 0.4% of the residents. By share of territory in the P2 flood area, Semproniano ranks 22nd of 28 municipalities in the province of Grosseto.
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 |
|---|---|---|---|
| Roccalbegna | 3 | 55.9% | 3.5% |
| Castell’Azzara | 2 | 32.2% | 1.1% |
| Santa Fiora | 2 | 44.3% | 0.9% |
| Sorano | 3 | 13.8% | 1.3% |
| Arcidosso | 3 | 52.5% | 1.6% |
| Piancastagnaio | 2 | 15.3% | 1.6% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on