Geomagnetic activity refers to variations in the Earth's magnetic field caused by solar wind and other solar phenomena. This activity is measured using the K-index, which indicates the level of disturbances in the magnetic field. High geomagnetic activity can lead to beautiful natural displays known as auroras, which occur near the polar regions. These disturbances can also affect technology, such as satellites and communication systems. During periods of intense geomagnetic activity, power grids may experience fluctuations, leading to potential outages. Monitoring geomagnetic activity is essential for understanding its impact on both natural phenomena and human-made systems.