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This paper provides evidence for recent geodynamic activity within the Sudeten and Krušné Hory Mts. Fault Zones of the Bohemian Massif, Central Europe. Data were recorded using crack gauges and tiltmeters located on specific geological structures within caves and galleries. These data are supported by rangefinder, seismic, and groundwater observations. It is shown that a significant pressure phenomenon, here termed a pressure pulse, occurred during 2003. The pressure pulse initiated a series of tectonic deformations. In the Krušné Hory Mts., the pulse was preceded by chaotic tilt movements followed by significant tilt reorientation. Several stages of the deformation process were determined, analysed, and described. These stages represent stability, relaxation, compression, compaction, and later relaxation. The pressure pulse itself was associated with the compressional stage. Moderate, but regionally …