Buying a home in Rocca Grimalda
1,430 residents at the 2021 census, 1,655 buildings and 15.5 km² of territory, Piemonte.
Rocca Grimalda is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2. According to ISPRA’s mosaic, 2.8% of the territory of Rocca Grimalda has high or very high landslide hazard (P3 and P4), with 9.9% of the residents. 2% of the territory of Rocca Grimalda is in the flood area of the medium-probability scenario (P2), with 0.8% of the residents.
Find your address in Rocca Grimalda
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Rocca Grimalda compared
| ISPRA indicator | Rocca Grimalda | AL | Piemonte |
|---|---|---|---|
| Landslide, very high hazard (P4) | 1.8% | 2.7% | 3.1% |
| Landslide, high hazard (P3) | 1% | 3.9% | 3.7% |
| Landslide, areas of attention | 0% | 0% | 0% |
| Residents in landslide areas P3-P4 | 9.9% | 1.1% | 1.8% |
| Buildings in landslide areas P3-P4 | 7% | 3.8% | 4.4% |
| Flood, high probability (P3) | 1.6% | 9.2% | 5.1% |
| Flood, medium probability (P2) | 2% | 11.9% | 8.3% |
| Flood, low probability (P1) | 8.4% | 19.5% | 13% |
| Residents in P2 flood areas | 0.8% | 3.2% | 4.9% |
| Buildings in P2 flood areas | 0.7% | 4% | 5.8% |
Questions
Which seismic zone is Rocca Grimalda in?
Rocca Grimalda is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2.
How much of Rocca Grimalda is in landslide class P3/P4?
According to ISPRA’s mosaic, 2.8% of the territory of Rocca Grimalda has high or very high landslide hazard (P3 and P4), with 9.9% of the residents. By share of territory with landslide hazard P3-P4, Rocca Grimalda ranks 100th of 187 municipalities in the province of Alessandria.
How much of Rocca Grimalda is in flood scenario P2?
2% of the territory of Rocca Grimalda is in the flood area of the medium-probability scenario (P2), with 0.8% of the residents. By share of territory in the P2 flood area, Rocca Grimalda ranks 139th 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 |
|---|---|---|---|
| Carpeneto | 3 | 0.5% | 5.4% |
| Silvano d’Orba | 3 | 4.2% | 23.1% |
| Montaldo Bormida | 3 | 3.2% | 0.2% |
| Trisobbio | 3 | 2.7% | 1.4% |
| Castelletto d’Orba | 3 | 0.5% | 6% |
| Orsara Bormida | 3 | 3.2% | 0.6% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on