Seismic events refer to natural phenomena that involve the release of energy in the Earth's crust, typically resulting in the generation of earthquakes, volcanic eruptions, and tsunamis. These events are caused by the movement of tectonic plates, volcanic activity, or underground nuclear explosions. Seismic events can be monitored and studied using seismometers, which detect and record the vibrations caused by these disturbances. Understanding seismic events is crucial for predicting and mitigating their impact on human populations and infrastructure.