Melody of an Alpine summit falling apart

The summit of the 2592 meters high Hochvogel is sliced by dangerous fracture which continues to open. It is difficult to judge when the summit might crack. Researchers are developing a new monitoring method. Seismic sensors measure the summit's natural vibration. The pitch of the mountain changes depending on the tension in the rock allowing unique conclusions about the development of a landslide.

source https://www.sciencedaily.com/releases/2020/12/201221160434.htm