Seismic events refer to natural occurrences that result from the movement of the Earth's tectonic plates. These events include earthquakes, which are sudden ground shaking caused by the release of energy in the Earth's crust, and volcanic eruptions, where magma escapes from beneath the Earth's surface. Seismic events can vary in intensity and duration, affecting both the environment and human structures. Scientists use instruments like seismographs to measure and analyze these events, helping to predict potential hazards and improve safety measures in areas prone to such occurrences, like the Ring of Fire.