Buying a home in Marciano della Chiana
3,458 residents at the 2021 census, 1,711 buildings and 23.7 km² of territory, Toscana.
Marciano della Chiana is in seismic zone 2: in this zone strong earthquakes are possible. According to ISPRA’s mosaic, 6.1% of the territory of Marciano della Chiana has high or very high landslide hazard (P3 and P4), with 2.9% of the residents. 26.8% of the territory of Marciano della Chiana is in the flood area of the medium-probability scenario (P2), with 4.3% of the residents.
Find your address in Marciano della Chiana
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Marciano della Chiana compared
| ISPRA indicator | Marciano della Chiana | AR | Toscana |
|---|---|---|---|
| Landslide, very high hazard (P4) | 0.3% | 3.4% | 4.6% |
| Landslide, high hazard (P3) | 5.7% | 14.3% | 16.4% |
| Landslide, areas of attention | 0% | 0% | 0.6% |
| Residents in landslide areas P3-P4 | 2.9% | 5.6% | 5% |
| Buildings in landslide areas P3-P4 | 0.6% | 8.9% | 8.1% |
| Flood, high probability (P3) | 0% | 2% | 6.2% |
| Flood, medium probability (P2) | 26.8% | 6.7% | 12.2% |
| Flood, low probability (P1) | 46.8% | 11.9% | 21.2% |
| Residents in P2 flood areas | 4.3% | 12.1% | 25.6% |
| Buildings in P2 flood areas | 7.2% | 8.6% | 22.2% |
Questions
Which seismic zone is Marciano della Chiana in?
Marciano della Chiana is in seismic zone 2: in this zone strong earthquakes are possible.
How much of Marciano della Chiana is in landslide class P3/P4?
According to ISPRA’s mosaic, 6.1% of the territory of Marciano della Chiana has high or very high landslide hazard (P3 and P4), with 2.9% of the residents. By share of territory with landslide hazard P3-P4, Marciano della Chiana ranks 28th of 36 municipalities in the province of Arezzo.
How much of Marciano della Chiana is in flood scenario P2?
26.8% of the territory of Marciano della Chiana is in the flood area of the medium-probability scenario (P2), with 4.3% of the residents. By share of territory in the P2 flood area, Marciano della Chiana ranks 2nd of 36 municipalities in the province of Arezzo.
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 |
|---|---|---|---|
| Foiano della Chiana | 2 | 5.3% | 27.3% |
| Monte San Savino | 3 | 4.1% | 16% |
| Lucignano | 3 | 6.2% | 18.5% |
| Sinalunga | 3 | 1.7% | 23.6% |
| Castiglion Fiorentino | 2 | 8.4% | 24.5% |
| Civitella in Val di Chiana | 3 | 4.9% | 7.3% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on