Floods, 123 thousand Sardinians live in areas at risk

There are almost 123,000 Sardinians who live in areas at risk of flooding in the event of a flood : 4% of the island's extension.

The figure results from the intersection of numerous parameters – hydrographic, pluviometric, personal data and resulting from the study of past events – and is reported in the latest " Report on the conditions of danger from flooding in Italy and associated risk indicators " by Ispra ( Higher Institute for Environmental Protection and Research) necessary, in the words of its president, Stefano Laporta, "for our country to found strategies and programs to manage and mitigate" the dangers caused by the rains.

The flood events in Sardinia in recent years have followed one another, intense and lethal. October 2008, November 2013, October 2018, November 2020. An ever closer cyclicality that risks causing the study parameters to be reconsidered. Meanwhile, the picture is drawn. Ispra hypothesizes three possible scenarios. That of floodable areas with high probability following alluvial events, with return times between 20 and 50 years. Then the hypothesis with a period of repetition of the phenomenon that travels between 100 and 200 years (average probability or infrequent floods). And finally the least probable, but most extreme scenario, with return times of more than 200 years.

Henry Fresu