The Walferdange Underground Laboratory for Geodynamics

The Walferdange Underground Laboratory for Geodynamics (WULG) is located in an gypsum mine (originally exploited by a commercial company). The thicknes of the sedimentary surface layer above the central part of the mine system amounts to about 80 meters. The distance from the entrance to the “Old Laboratory” is about 1km and the temperature about 13°C at the terminal of the main gallery where the old laboratory is situated.

This is the ideal place to perform very high precision geophysical measurements. Read more …

WULG Photo InsideWULG Map

Find out more about the Walferdange Underground Laboratory for Geodynamics (with full descriptions and maps)


The following instruments are installed in the Underground Laboratory



Gravimeters measures the local gravity (g) of the Earth.



Seismometers records daily worldwide and local earthquakes.



Tiltmeters measures the change in ground slope.

GPS reference station

The GPS reference station antenna for Luxembourg is installed since 2002 on the roof of the ECGS office building in Walferdange.

GPS Station at ECGS

The real-time acquired GPS-data is automatically transfered to the Administration du Cadastre et de la Topographie, Luxembourg.