Seismic instruments are devices used to detect and measure vibrations in the Earth, particularly those caused by earthquakes. These instruments can record the intensity, duration, and frequency of seismic waves, helping scientists understand the Earth's internal structure and the mechanics of earthquakes. Common types of seismic instruments include seismometers and accelerometers. Data collected by seismic instruments is crucial for earthquake research and safety. By analyzing this information, scientists can improve earthquake prediction models and develop better building codes to protect structures during seismic events. This research ultimately helps to reduce the risks associated with earthquakes for communities worldwide.