However, the constant mining of the salt deposits over which the town stands has also resulted in the sometimes gradual, sometimes dramatically pronounced, sinking of various areas of the town.
Kuid soolalademete pidev kaevandamine, mille kohal linn seisab, on põhjustanud ka linna erinevate piirkondade mõnikord järkjärgulist, mõnikortd äkilist vajumist.