How is infra sound used during volcanic eruptions?

Infrasound, which refers to sound waves with frequencies below the human hearing range (below 20 Hz), is used to monitor volcanic eruptions by detecting low-frequency pressure waves generated by explosive events. These waves can travel long distances and provide real-time data on volcanic activity, helping scientists assess eruption intensity and potential hazards. Infrasound sensors can capture signals from events like explosions, ash plumes, and even landslides, contributing to early warning systems and enhancing our understanding of volcanic behavior.