Buying a home in Gradisca d’Isonzo
6,370 residents at the 2021 census, 2,117 buildings and 11.2 km² of territory, Friuli-Venezia Giulia.
Gradisca d’Isonzo is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2. According to ISPRA’s mosaic, 0% of the territory of Gradisca d’Isonzo has high or very high landslide hazard (P3 and P4), with 0% of the residents. 39.2% of the territory of Gradisca d’Isonzo is in the flood area of the medium-probability scenario (P2), with 46% of the residents.
Find your address in Gradisca d’Isonzo
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Gradisca d’Isonzo compared
| ISPRA indicator | Gradisca d'Isonzo | GO | Friuli-Venezia Giulia |
|---|---|---|---|
| Landslide, very high hazard (P4) | 0% | 0% | 2% |
| Landslide, high hazard (P3) | 0% | 0.3% | 0.5% |
| Landslide, areas of attention | 0% | 0% | 0.1% |
| Residents in landslide areas P3-P4 | 0% | 0% | 0.3% |
| Buildings in landslide areas P3-P4 | 0% | 0.1% | 0.6% |
| Flood, high probability (P3) | 37.3% | 22% | 9.6% |
| Flood, medium probability (P2) | 39.2% | 26.6% | 14.6% |
| Flood, low probability (P1) | 40.2% | 37.9% | 21.5% |
| Residents in P2 flood areas | 46% | 11% | 9.9% |
| Buildings in P2 flood areas | 44.3% | 12% | 10.8% |
Questions
Which seismic zone is Gradisca d’Isonzo in?
Gradisca d’Isonzo is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2.
How much of Gradisca d’Isonzo is in landslide class P3/P4?
According to ISPRA’s mosaic, 0% of the territory of Gradisca d’Isonzo has high or very high landslide hazard (P3 and P4), with 0% of the residents. In the area of the former province of Gorizia, 18 of 25 municipalities have no territory with landslide hazard P3-P4.
How much of Gradisca d’Isonzo is in flood scenario P2?
39.2% of the territory of Gradisca d’Isonzo is in the flood area of the medium-probability scenario (P2), with 46% of the residents. By share of territory in the P2 flood area, Gradisca d’Isonzo ranks 5th of 25 municipalities in the area of the former province of Gorizia.
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 |
|---|---|---|---|
| Sagrado | 3 | 0% | 13.3% |
| Mariano del Friuli | 3 | 0% | 3.9% |
| Farra d’Isonzo | 2 | 0% | 31.9% |
| Fogliano Redipuglia | 3 | 0% | 5.2% |
| Moraro | 2 | 0% | 1.8% |
| Romans d’Isonzo | 3 | 0% | 39.8% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on