👉 The term "seismometer" is a device that measures and records seismic waves. It can be used to detect earthquakes, tsunamis, volcanic eruptions, and other natural disasters. The seismometer works by sending out sound waves (called seismic waves) from the ground and then receiving back a signal from the Earth's interior, which tells you how strong the earthquake is, its depth, and its location. Seismic waves are used in many scientific fields, such as geology