Buying a home in Castel Viscardo
2,731 residents at the 2021 census, 1,660 buildings and 26.2 km² of territory, Umbria.
Castel Viscardo is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2. According to ISPRA’s mosaic, 13.3% of the territory of Castel Viscardo has high or very high landslide hazard (P3 and P4), with 3.5% of the residents. 9.7% of the territory of Castel Viscardo is in the flood area of the medium-probability scenario (P2), with 12% of the residents.
Find your address in Castel Viscardo
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Castel Viscardo compared
| ISPRA indicator | Castel Viscardo | TR | Umbria |
|---|---|---|---|
| Landslide, very high hazard (P4) | 0.4% | 0.2% | 0.1% |
| Landslide, high hazard (P3) | 12.9% | 6.1% | 5.8% |
| Landslide, areas of attention | 0% | 0% | 0% |
| Residents in landslide areas P3-P4 | 3.5% | 2.4% | 2.1% |
| Buildings in landslide areas P3-P4 | 5.9% | 4.5% | 3% |
| Flood, high probability (P3) | 6.3% | 2.9% | 3% |
| Flood, medium probability (P2) | 9.7% | 3.8% | 4.3% |
| Flood, low probability (P1) | 11.1% | 4.2% | 6% |
| Residents in P2 flood areas | 12% | 6.9% | 7.2% |
| Buildings in P2 flood areas | 6.8% | 5.7% | 6.5% |
Questions
Which seismic zone is Castel Viscardo in?
Castel Viscardo is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2.
How much of Castel Viscardo is in landslide class P3/P4?
According to ISPRA’s mosaic, 13.3% of the territory of Castel Viscardo has high or very high landslide hazard (P3 and P4), with 3.5% of the residents. By share of territory with landslide hazard P3-P4, Castel Viscardo ranks 4th of 33 municipalities in the province of Terni.
How much of Castel Viscardo is in flood scenario P2?
9.7% of the territory of Castel Viscardo is in the flood area of the medium-probability scenario (P2), with 12% of the residents. By share of territory in the P2 flood area, Castel Viscardo ranks 4th of 33 municipalities in the province of Terni.
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 |
|---|---|---|---|
| Allerona | 3 | 20.2% | 0.5% |
| Castel Giorgio | 3 | 1.5% | 0% |
| Ficulle | 3 | 3.9% | 4.6% |
| Acquapendente | 2B | 23% | 1.6% |
| Porano | 3 | 1.9% | 0% |
| Orvieto | 3 | 5% | 4.7% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on