Buying a home in Tronzano Lago Maggiore
225 residents at the 2021 census, 354 buildings and 11.1 km² of territory, Lombardia.
Tronzano Lago Maggiore is in seismic zone 4: the least hazardous zone: the probability of an earthquake is very low. According to ISPRA’s mosaic, 2.1% of the territory of Tronzano Lago Maggiore has high or very high landslide hazard (P3 and P4), with 1.8% of the residents. 45.6% of the territory of Tronzano Lago Maggiore is in the flood area of the medium-probability scenario (P2), with 0% of the residents.
Find your address in Tronzano Lago Maggiore
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Tronzano Lago Maggiore compared
| ISPRA indicator | Tronzano Lago Maggiore | VA | Lombardia |
|---|---|---|---|
| Landslide, very high hazard (P4) | 2% | 1.5% | 3.7% |
| Landslide, high hazard (P3) | 0.1% | 0.6% | 2.9% |
| Landslide, areas of attention | 0% | 0% | 0% |
| Residents in landslide areas P3-P4 | 1.8% | 0.3% | 0.4% |
| Buildings in landslide areas P3-P4 | 2% | 0.4% | 1.1% |
| Flood, high probability (P3) | 45.5% | 10.8% | 7.9% |
| Flood, medium probability (P2) | 45.6% | 13.1% | 10.2% |
| Flood, low probability (P1) | 45.7% | 16% | 20.3% |
| Residents in P2 flood areas | 0% | 2.2% | 4.4% |
| Buildings in P2 flood areas | 0% | 2.3% | 4.7% |
Questions
Which seismic zone is Tronzano Lago Maggiore in?
Tronzano Lago Maggiore is in seismic zone 4: the least hazardous zone: the probability of an earthquake is very low.
How much of Tronzano Lago Maggiore is in landslide class P3/P4?
According to ISPRA’s mosaic, 2.1% of the territory of Tronzano Lago Maggiore has high or very high landslide hazard (P3 and P4), with 1.8% of the residents. By share of territory with landslide hazard P3-P4, Tronzano Lago Maggiore ranks 27th of 136 municipalities in the province of Varese.
How much of Tronzano Lago Maggiore is in flood scenario P2?
45.6% of the territory of Tronzano Lago Maggiore is in the flood area of the medium-probability scenario (P2), with 0% of the residents. By share of territory in the P2 flood area, Tronzano Lago Maggiore ranks 9th of 136 municipalities in the province of Varese.
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 |
|---|---|---|---|
| Maccagno con Pino e Veddasca | 4 | 7.5% | 21.3% |
| Agra | 4 | 4.1% | 0% |
| Cannobio | 4 | 1.9% | 25.3% |
| Curiglia con Monteviasco | 4 | 12.5% | 0% |
| Dumenza | 4 | 6.5% | 0% |
| Trarego Viggiona | 4 | 0% | 0% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on