The 10th November 2014 flash-flood event in Chiavari city (Eastern Liguria, Italy)

Description

Due to short durations of heavy rainfalls that occurred between November 10th and 11th, 2014 the Chiavari area was the subject of a serious geo-hydrological event determined by the simultaneous overflowing of the Entella and Rupinaro streams. In the lower Fontanabuona valley (Municipality of Leivi) a landslide destroyed a building and took the lives of two people, while severe damages to buildings and infrastructures were recorded in the Chiavari historical center, Carasco and Cogorno. Between 08:00 am on November 10th and 08:00 am on November 11th 2014, peaks of rainfall peaks in Entella stream catchment order of 60 mm/1h and cumulated rainfall of 220 mm/24h were recorded. The levels of streams were immediately elevated, highlighting a concentrated time of less than 1 hour between 08:00 pm and 00:00 am when the level of the Entella stream moved up to 7 m leading to the flooding in Carasco, Cogorno, and in Chiavari (the Caperana district). Meanwhile flash flooding in the Rupinaro stream resulted in water levels up to 1.5 m in the old town of Chiavari.

Additional details