Buying a home in San Marzano sul Sarno
10,325 residents at the 2021 census, 1,499 buildings and 5.2 km² of territory, Campania.
San Marzano sul Sarno is in seismic zone 2: in this zone strong earthquakes are possible. According to ISPRA’s mosaic, 0% of the territory of San Marzano sul Sarno has high or very high landslide hazard (P3 and P4), with 0% of the residents. 48.6% of the territory of San Marzano sul Sarno is in the flood area of the medium-probability scenario (P2), with 28% of the residents.
Find your address in San Marzano sul Sarno
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San Marzano sul Sarno compared
| ISPRA indicator | San Marzano sul Sarno | SA | Campania |
|---|---|---|---|
| Landslide, very high hazard (P4) | 0% | 5.8% | 9.5% |
| Landslide, high hazard (P3) | 0% | 16.8% | 10.1% |
| Landslide, areas of attention | 0% | 23.3% | 22% |
| Residents in landslide areas P3-P4 | 0% | 8.3% | 4.7% |
| Buildings in landslide areas P3-P4 | 0% | 13.2% | 9.2% |
| Flood, high probability (P3) | 4.9% | 2% | 2.5% |
| Flood, medium probability (P2) | 48.6% | 3.7% | 5.7% |
| Flood, low probability (P1) | 53.7% | 4% | 6.2% |
| Residents in P2 flood areas | 28% | 10% | 5.1% |
| Buildings in P2 flood areas | 28.5% | 6.5% | 5.9% |
Questions
Which seismic zone is San Marzano sul Sarno in?
San Marzano sul Sarno is in seismic zone 2: in this zone strong earthquakes are possible.
How much of San Marzano sul Sarno is in landslide class P3/P4?
According to ISPRA’s mosaic, 0% of the territory of San Marzano sul Sarno has high or very high landslide hazard (P3 and P4), with 0% of the residents. In the province of Salerno, 4 of 158 municipalities have no territory with landslide hazard P3-P4.
How much of San Marzano sul Sarno is in flood scenario P2?
48.6% of the territory of San Marzano sul Sarno is in the flood area of the medium-probability scenario (P2), with 28% of the residents. By share of territory in the P2 flood area, San Marzano sul Sarno ranks 1st of 158 municipalities in the province of Salerno.
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 |
|---|---|---|---|
| San Valentino Torio | 2 | 0% | 32.5% |
| Pagani | 2 | 12.9% | 14.7% |
| Scafati | 2 | 0% | 30.3% |
| Sant’Egidio del Monte Albino | 2 | 25.9% | 5.3% |
| Angri | 2 | 12.2% | 7.8% |
| Poggiomarino | 2 | 0% | 4.5% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on