Black Forest Observatory Schiltach

explore the elastogravitational free modes to enhance the understanding of the Earth's deep interior and study longperiodic and aperiodic variations of gravity

The Black Forest Observatory (BFO) is an interdisciplinary research facility to survey and analyze deformations of the earths body as well as changes in gravity and magnetic field of the earth. Since 1971 it is a joint facility of the institutes of geodesy and geophysics of the Karlsruhe Institute of Technology (KIT) and the University of Stuttgart. The observatory is located close to Schiltach in a former silver mine in the black forest. (German)

recent seismic data from BFO

STS-1 Seismometer at BFO



tide, tilt and air pressure from SG056 and ET-19 at BFO


This image shows Rudolf Widmer-Schnidrig

Rudolf Widmer-Schnidrig


Scientific Employee

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  • My main research interest is in low-frequency seismology: observing the elasto-gravitational free oscillations of the Earth to infer mantle and core structure. Since 2000 I work at the Black Forest Observatory (BFO) where we operate sensors to observe the entire geodynamic spectrum in gravity, strain and tilt. At BFO we also tested seismometers for the InSight mission to Mars and I am now involved in the analysis of these data to study the martian interior. Most recently I have also searched for the signature of compact dark matter objects (CDOs) in terrestrial gravimeter data.
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