Seismic disturbances, also known as shocks, are vibrations in the Earth's crust caused by sudden movements of the Earth's tectonic plates. These disturbances can be caused by natural events such as earthquakes, volcanic eruptions, and landslides, or by man-made activities such as explosions and mining. Seismic disturbances can cause significant damage to buildings and infrastructure, and can even trigger tsunamis and other natural disasters.