The natural earthquakes that occur in the southeast of the Netherlands are caused by active rifts of the European Cenozoic Rift System. Natuurlijke aardbevingen in Zuid-Nederland , Royal Netherlands Meteorological Institute, 2007. Retrieved on 17 March 2015. The 1992 Roermond earthquake in the southeastern province of Limburg was the heaviest registered earthquake in the Netherlands. It had a magnitude of 5.8 and occurred in Roermond on 13 April 1992. Aardbeving bij Roermond 13 april 1992 , Royal Netherlands Meteorological Institute, 2010. Retrieved on 17 March 2015.
