Buying a home in Tarquinia
16,075 residents at the 2021 census, 6,921 buildings and 279.6 km² of territory, Lazio.
Tarquinia is in seismic zone 3 (the region uses the sub-zones 3B): in this zone strong earthquakes are less likely than in zones 1 and 2. According to ISPRA’s mosaic, 1.2% of the territory of Tarquinia has high or very high landslide hazard (P3 and P4), with 3.7% of the residents. 14.4% of the territory of Tarquinia is in the flood area of the medium-probability scenario (P2), with 7.2% of the residents.
Find your address in Tarquinia
The preview is free: the parcel, the seismic zone and the types of flags. The full dossier costs €29 including applicable VAT.
Tarquinia compared
| ISPRA indicator | Tarquinia | VT | Lazio |
|---|---|---|---|
| Landslide, very high hazard (P4) | 1.1% | 0.9% | 4.3% |
| Landslide, high hazard (P3) | 0.1% | 2.7% | 1.2% |
| Landslide, areas of attention | 9.6% | 1.9% | 8.3% |
| Residents in landslide areas P3-P4 | 3.7% | 4.5% | 1.5% |
| Buildings in landslide areas P3-P4 | 1.4% | 4.1% | 3.2% |
| Flood, high probability (P3) | 9.1% | 2.4% | 2.6% |
| Flood, medium probability (P2) | 14.4% | 3% | 3.5% |
| Flood, low probability (P1) | 16.2% | 3.4% | 5.7% |
| Residents in P2 flood areas | 7.2% | 1% | 3.2% |
| Buildings in P2 flood areas | 17.5% | 1.7% | 3.4% |
Questions
Which seismic zone is Tarquinia in?
Tarquinia is in seismic zone 3 (the region uses the sub-zones 3B): in this zone strong earthquakes are less likely than in zones 1 and 2.
How much of Tarquinia is in landslide class P3/P4?
According to ISPRA’s mosaic, 1.2% of the territory of Tarquinia has high or very high landslide hazard (P3 and P4), with 3.7% of the residents. By share of territory with landslide hazard P3-P4, Tarquinia ranks 33rd of 60 municipalities in the province of Viterbo.
How much of Tarquinia is in flood scenario P2?
14.4% of the territory of Tarquinia is in the flood area of the medium-probability scenario (P2), with 7.2% of the residents. By share of territory in the P2 flood area, Tarquinia ranks 2nd of 60 municipalities in the province of Viterbo.
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 Romano | 2B | 0.5% | 1.3% |
| Tuscania | 2B | 1.4% | 1.6% |
| Civitavecchia | 3B | 0.9% | 1.1% |
| Allumiere | 3B | 3.1% | 0.1% |
| Blera | 2B | 5.7% | 0% |
| Montalto di Castro | 3B | 2% | 10.5% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on