Cavités souterraines

2019 – Effondrement – Niort (79) – ©BRGM
2019 – Effondrement – Niort (79) – ©BRGM
2016 – Effondrement en formation – Marigny-Brizay (86) – ©BRGM
2014 – Effondrement – Allassac (19) – ©BRGM
2011 – Effondrement – Allassac (19) – ©BRGM
NC – Effondrement – Tourtenay (79) – ©BRGM