Buying a home in Colonna
4,231 residents at the 2021 census, 696 buildings and 3.5 km² of territory, Lazio.
Colonna is in seismic zone 2 (the region uses the sub-zones 2B): in this zone strong earthquakes are possible. According to ISPRA’s mosaic, 0% of the territory of Colonna has high or very high landslide hazard (P3 and P4), with 0% of the residents. 0% of the territory of Colonna is in the flood area of the medium-probability scenario (P2), with 0% of the residents.
Find your address in Colonna
The preview is free: the parcel, the seismic zone and the types of flags. The full dossier costs €29 including applicable VAT.
Colonna compared
| ISPRA indicator | Colonna | RM | Lazio |
|---|---|---|---|
| Landslide, very high hazard (P4) | 0% | 2.1% | 4.3% |
| Landslide, high hazard (P3) | 0% | 0.6% | 1.2% |
| Landslide, areas of attention | 0% | 6.5% | 8.3% |
| Residents in landslide areas P3-P4 | 0% | 0.6% | 1.5% |
| Buildings in landslide areas P3-P4 | 0% | 1.2% | 3.2% |
| Flood, high probability (P3) | 0% | 3.4% | 2.6% |
| Flood, medium probability (P2) | 0% | 4.7% | 3.5% |
| Flood, low probability (P1) | 0% | 7% | 5.7% |
| Residents in P2 flood areas | 0% | 3.6% | 3.2% |
| Buildings in P2 flood areas | 0% | 4.5% | 3.4% |
Questions
Which seismic zone is Colonna in?
Colonna is in seismic zone 2 (the region uses the sub-zones 2B): in this zone strong earthquakes are possible.
How much of Colonna is in landslide class P3/P4?
According to ISPRA’s mosaic, 0% of the territory of Colonna has high or very high landslide hazard (P3 and P4), with 0% of the residents. In the Metropolitan City of Roma, 7 of 121 municipalities have no territory with landslide hazard P3-P4.
How much of Colonna is in flood scenario P2?
0% of the territory of Colonna is in the flood area of the medium-probability scenario (P2), with 0% of the residents. In the Metropolitan City of Roma, 62 of 121 municipalities have no territory in the P2 flood area.
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 |
|---|---|---|---|
| Monte Compatri | 2B | 0.5% | 1.5% |
| San Cesareo | 2B | 0% | 0% |
| Monte Porzio Catone | 2B | 0% | 0% |
| Zagarolo | 2B | 1.2% | 0% |
| Rocca Priora | 2B | 16.6% | 0% |
| Gallicano nel Lazio | 2B | 0.2% | 0% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on