Typical sawtooth pattern in the mountains frequency (IMAGE)

GFZ GeoForschungsZentrum Potsdam, Helmholtz Centre

Typical sawtooth pattern in the mountains frequency

Caption

The researchers observe a characteristic sawtooth pattern in the frequency of the mountain (top): it rises with the stress in the rock and drops again after days. In the process, seismic signals are registered (bottom), which occur when rock cracks open. If the cycles become shorter, a mass break-up is approaching. This is also a danger indicator.

Credit

Dietze/GFZ

Usage Restrictions

None

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.