Skip to content
Deep-dive

Climate and risks: seismic zone 4, but one resident in seven in flood-prone areas

In the Civil Protection Department's seismic classification (May 2025) Oristano is in zone 4, the least hazardous. According to ISPRA IdroGEO (2024 report) 4,461 inhabitants, 14.3%, live in areas of medium flood hazard, together with 26.1% of businesses; landslide risk concerns 9 inhabitants.

Sections: Seasons · Rainfall · Temperatures · Air quality · Environmental hazards

Seismic risk

In the seismic classification of municipalities updated in May 2025 by the Civil Protection Department, Oristano is in zone 4, the least hazardous, where according to the Department "the probability of an earthquake is very low".

Floods

The ISPRA IdroGEO municipal sheet, based on the 2024 ISPRA report on hydrogeological instability, estimates in areas of medium flood hazard (scenario P2) 4,461 inhabitants (14.3%), 1,780 households (14.1%), 1,370 buildings (16.5%), 857 businesses (26.1%) and 6 cultural assets (8.3%). Anyone looking for a home should check the property's location on the map.

Landslides

Landslide risk is marginal: inhabitants in areas of high or very high landslide hazard (P3 and P4) number 9.

Rainy days per year
City figurePeriod: 1991–2020Validsample unknown
Source: ISPRA – Valori climatici normali in Italia (web app SCIA, Sezione Climatologia Operativa), trentennio 1991–2020 · Stazione «Oristano» (12 m) nel comune di Oristano (~1 km dal centro).
63days

Missing: temp_jan_avg, temp_jul_avg, air_pm10_days_over_limit

Data

Rainy days per year
City figurePeriod: 1991–2020Validsample unknown
Source: ISPRA – Valori climatici normali in Italia (web app SCIA, Sezione Climatologia Operativa), trentennio 1991–2020 · Stazione «Oristano» (12 m) nel comune di Oristano (~1 km dal centro).
63days

Sources

Dipartimento della Protezione Civile – Classificazione sismica· Presidenza del Consiglio – Dipartimento della Protezione Civile

Updated: 2026-10-22

Dipartimento della Protezione Civile – Classificazione sismica dei comuni aggiornata a maggio 2025 (csv)· Presidenza del Consiglio dei Ministri – Dipartimento della Protezione Civile

Updated: 2026-10-22

ISPRA IdroGEO – Pericolosità e indicatori di rischio, Comune di Oristano (Rapporto ISPRA 2024 sul dissesto idrogeologico)· ISPRA – Istituto Superiore per la Protezione e la Ricerca Ambientale

Updated: 2026-10-22

Reviewed: 10/23/2026 · by piero.avolio · rev. 1 · Period: → 2027-10-31

No questions in the community · Ask the community