Buying a home in Ischia
19,542 residents at the 2021 census, 4,692 buildings and 8.1 km² of territory, Campania.
Ischia is in seismic zone 2: in this zone strong earthquakes are possible. According to ISPRA’s mosaic, 40.2% of the territory of Ischia has high or very high landslide hazard (P3 and P4), with 18.2% of the residents. 3.3% of the territory of Ischia is in the flood area of the medium-probability scenario (P2), with 3.3% of the residents.
Find your address in Ischia
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Ischia compared
| ISPRA indicator | Ischia | NA | Campania |
|---|---|---|---|
| Landslide, very high hazard (P4) | 22.2% | 9.1% | 9.5% |
| Landslide, high hazard (P3) | 18% | 7.8% | 10.1% |
| Landslide, areas of attention | 0% | 0% | 22% |
| Residents in landslide areas P3-P4 | 18.2% | 3.2% | 4.7% |
| Buildings in landslide areas P3-P4 | 19.7% | 6.5% | 9.2% |
| Flood, high probability (P3) | 3.3% | 2.8% | 2.5% |
| Flood, medium probability (P2) | 3.3% | 4.2% | 5.7% |
| Flood, low probability (P1) | 3.3% | 5.4% | 6.2% |
| Residents in P2 flood areas | 3.3% | 3.4% | 5.1% |
| Buildings in P2 flood areas | 3.5% | 4.3% | 5.9% |
Questions
Which seismic zone is Ischia in?
Ischia is in seismic zone 2: in this zone strong earthquakes are possible.
How much of Ischia is in landslide class P3/P4?
According to ISPRA’s mosaic, 40.2% of the territory of Ischia has high or very high landslide hazard (P3 and P4), with 18.2% of the residents. By share of territory with landslide hazard P3-P4, Ischia ranks 18th of 92 municipalities in the Metropolitan City of Napoli.
How much of Ischia is in flood scenario P2?
3.3% of the territory of Ischia is in the flood area of the medium-probability scenario (P2), with 3.3% of the residents. By share of territory in the P2 flood area, Ischia ranks 45th of 92 municipalities in the Metropolitan City of Napoli.
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 |
|---|---|---|---|
| Barano d’Ischia | 2 | 56.5% | 6.3% |
| Casamicciola Terme | 2 | 59.8% | 4.9% |
| Serrara Fontana | 2 | 58.5% | 10.1% |
| Lacco Ameno | 2 | 26.2% | 6.7% |
| Forio | 2 | 42.5% | 2% |
| Procida | 2 | 18.6% | 0.9% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on