Area of the former province of Gorizia
Natural hazards and seismic zone municipality by municipality, for home buyers.
According to ISPRA’s mosaic, 0.3% of the territory of the former province of Gorizia has high or very high landslide hazard (P3 and P4), with 0% of the residents. 26.6% of the territory of the former province of Gorizia is in the flood area of the medium-probability scenario (P2), with 11% of the residents. Among Italy’s 107 provinces it ranks 93rd for landslide hazard P3-P4 and 7th for flood area (P2).
Municipalities by seismic zone: 10 in zone 2, 15 in zone 3.
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Municipalities by share of territory in landslide class P3/P4
| Dolegna del Collio | 3.9% |
|---|---|
| San Floriano del Collio | 3.2% |
| Cormons | 1% |
| Gorizia | 0.3% |
| Doberdò del Lago | 0.3% |
| Capriva del Friuli | 0.1% |
| Ronchi dei Legionari | 0.1% |
Municipalities by share of territory in flood scenario P2
| Villesse | 92.4% |
|---|---|
| San Canzian d’Isonzo | 62% |
| Staranzano | 42.6% |
| Romans d’Isonzo | 39.8% |
| Gradisca d’Isonzo | 39.2% |
| Grado | 37.1% |
| Farra d’Isonzo | 31.9% |
| Turriaco | 22.8% |
| San Floriano del Collio | 20.3% |
| Savogna d’Isonzo | 19.6% |
All 25 municipalities
| Municipality | Seismic zone | Landslide P3-P4 | Flood P2 |
|---|---|---|---|
| Capriva del Friuli | 2 | 0.1% | 7.1% |
| Cormons | 2 | 1% | 11.4% |
| Doberdò del Lago | 3 | 0.3% | 0% |
| Dolegna del Collio | 2 | 3.9% | 7.9% |
| Farra d’Isonzo | 2 | 0% | 31.9% |
| Fogliano Redipuglia | 3 | 0% | 5.2% |
| Gorizia | 2 | 0.3% | 14.7% |
| Gradisca d’Isonzo | 3 | 0% | 39.2% |
| Grado | 3 | 0% | 37.1% |
| Mariano del Friuli | 3 | 0% | 3.9% |
| Medea | 3 | 0% | 19.5% |
| Monfalcone | 3 | 0% | 16.8% |
| Moraro | 2 | 0% | 1.8% |
| Mossa | 2 | 0% | 7.3% |
| Romans d’Isonzo | 3 | 0% | 39.8% |
| Ronchi dei Legionari | 3 | 0.1% | 1.6% |
| Sagrado | 3 | 0% | 13.3% |
| San Canzian d’Isonzo | 3 | 0% | 62% |
| San Floriano del Collio | 2 | 3.2% | 20.3% |
| San Lorenzo Isontino | 2 | 0% | 0.3% |
| San Pier d’Isonzo | 3 | 0% | 17.1% |
| Savogna d’Isonzo | 2 | 0% | 19.6% |
| Staranzano | 3 | 0% | 42.6% |
| Turriaco | 3 | 0% | 22.8% |
| Villesse | 3 | 0% | 92.4% |
Landslides and floods in the province
| ISPRA indicator | GO | Friuli-Venezia Giulia |
|---|---|---|
| Landslide, very high hazard (P4) | 0% | 2% |
| Landslide, high hazard (P3) | 0.3% | 0.5% |
| Landslide, areas of attention | 0% | 0.1% |
| Residents in landslide areas P3-P4 | 0% | 0.3% |
| Buildings in landslide areas P3-P4 | 0.1% | 0.6% |
| Flood, high probability (P3) | 22% | 9.6% |
| Flood, medium probability (P2) | 26.6% | 14.6% |
| Flood, low probability (P1) | 37.9% | 21.5% |
| Residents in P2 flood areas | 11% | 9.9% |
| Buildings in P2 flood areas | 12% | 10.8% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on