Buying a home in Somma Vesuviana
33,935 residents at the 2021 census, 6,096 buildings and 30.7 km² of territory, Campania.
Somma Vesuviana is in seismic zone 2: in this zone strong earthquakes are possible. According to ISPRA’s mosaic, 28.3% of the territory of Somma Vesuviana has high or very high landslide hazard (P3 and P4), with 4.6% of the residents. 13.6% of the territory of Somma Vesuviana is in the flood area of the medium-probability scenario (P2), with 12.7% of the residents.
Find your address in Somma Vesuviana
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Somma Vesuviana compared
| ISPRA indicator | Somma Vesuviana | NA | Campania |
|---|---|---|---|
| Landslide, very high hazard (P4) | 16.8% | 9.1% | 9.5% |
| Landslide, high hazard (P3) | 11.4% | 7.8% | 10.1% |
| Landslide, areas of attention | 0% | 0% | 22% |
| Residents in landslide areas P3-P4 | 4.6% | 3.2% | 4.7% |
| Buildings in landslide areas P3-P4 | 11.3% | 6.5% | 9.2% |
| Flood, high probability (P3) | 13.3% | 2.8% | 2.5% |
| Flood, medium probability (P2) | 13.6% | 4.2% | 5.7% |
| Flood, low probability (P1) | 13.6% | 5.4% | 6.2% |
| Residents in P2 flood areas | 12.7% | 3.4% | 5.1% |
| Buildings in P2 flood areas | 14.4% | 4.3% | 5.9% |
Questions
Which seismic zone is Somma Vesuviana in?
Somma Vesuviana is in seismic zone 2: in this zone strong earthquakes are possible.
How much of Somma Vesuviana is in landslide class P3/P4?
According to ISPRA’s mosaic, 28.3% of the territory of Somma Vesuviana has high or very high landslide hazard (P3 and P4), with 4.6% of the residents. By share of territory with landslide hazard P3-P4, Somma Vesuviana ranks 25th of 92 municipalities in the Metropolitan City of Napoli.
How much of Somma Vesuviana is in flood scenario P2?
13.6% of the territory of Somma Vesuviana is in the flood area of the medium-probability scenario (P2), with 12.7% of the residents. By share of territory in the P2 flood area, Somma Vesuviana ranks 12th 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 |
|---|---|---|---|
| Ottaviano | 2 | 27% | 15.7% |
| Scisciano | 2 | 0% | 0% |
| Sant’Anastasia | 2 | 23.8% | 9.5% |
| Saviano | 2 | 0% | 1.5% |
| Pollena Trocchia | 2 | 30.8% | 18.6% |
| Massa di Somma | 2 | 56.6% | 1% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on