Buying a home in Terzo
838 residents at the 2021 census, 948 buildings and 8.8 km² of territory, Piemonte.
Terzo is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2. According to ISPRA’s mosaic, 8.3% of the territory of Terzo has high or very high landslide hazard (P3 and P4), with 7.9% of the residents. 13.9% of the territory of Terzo is in the flood area of the medium-probability scenario (P2), with 11.1% of the residents.
Find your address in Terzo
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Terzo compared
| ISPRA indicator | Terzo | AL | Piemonte |
|---|---|---|---|
| Landslide, very high hazard (P4) | 0.7% | 2.7% | 3.1% |
| Landslide, high hazard (P3) | 7.6% | 3.9% | 3.7% |
| Landslide, areas of attention | 0% | 0% | 0% |
| Residents in landslide areas P3-P4 | 7.9% | 1.1% | 1.8% |
| Buildings in landslide areas P3-P4 | 9.3% | 3.8% | 4.4% |
| Flood, high probability (P3) | 11.1% | 9.2% | 5.1% |
| Flood, medium probability (P2) | 13.9% | 11.9% | 8.3% |
| Flood, low probability (P1) | 15.1% | 19.5% | 13% |
| Residents in P2 flood areas | 11.1% | 3.2% | 4.9% |
| Buildings in P2 flood areas | 10.4% | 4% | 5.8% |
Questions
Which seismic zone is Terzo in?
Terzo is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2.
How much of Terzo is in landslide class P3/P4?
According to ISPRA’s mosaic, 8.3% of the territory of Terzo has high or very high landslide hazard (P3 and P4), with 7.9% of the residents. By share of territory with landslide hazard P3-P4, Terzo ranks 55th of 187 municipalities in the province of Alessandria.
How much of Terzo is in flood scenario P2?
13.9% of the territory of Terzo is in the flood area of the medium-probability scenario (P2), with 11.1% of the residents. By share of territory in the P2 flood area, Terzo ranks 55th of 187 municipalities in the province of Alessandria.
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 |
|---|---|---|---|
| Montabone | 4 | 47.4% | 2.2% |
| Bistagno | 3 | 7% | 7.6% |
| Acqui Terme | 3 | 4.2% | 7.4% |
| Melazzo | 3 | 15.4% | 14.5% |
| Castel Rocchero | 4 | 1.8% | 0% |
| Cavatore | 3 | 13.5% | 0.1% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on