A big solar storm today can leave Earth in 'darkness'

tech.hindustantimes.com:

From households, offices, hospitals, all major communication systems in the world, the power grid that connects them all, including our day-to-day activities, can be halted in just a flash of a second! This horrific scenario can become real if the Earth was hit by a big enough solar storm. Just such an event had come to pass in real life! Known as the Carrington Event in 1859, the solar storm spread terror across the world as the telegraph system suddenly started giving electrical shocks to the operators, set fire to wires and offices and much more. Similarly, there was another storm, which is said to be three times weaker than the Carrington Event that once hit Earth and it still managed to damage electrical transformers and the power grid. This was in Quebec, Canada, in March 1989 during which the Hydro-Quebec electrical grid collapsed. The same storm in New Jersey caused a transformer to blow and tripped the grid's circuit breakers. These areas were left without electricity for hours. It was an invisible calamity with very real-world destruction.

The reason behind the occurrence of solar storms, which wreak havoc on Earth, is the activity on the Sun. The very volatile nature of the Sun causes it to spew huge amounts of energy into space and if Earth is in the way, it gets hit by these solar storms. And when a solar storm reaches the Earth, it creates a disturbance of Earth's magnetosphere and causes a strong geomagnetic storm.

There are parameters to measure the intensity of these geomagnetic storms. The National Oceanic and Atmospheric Administration measures the strength of these storms with the G-Scale having a rating starting with G1 to G5 being extreme in nature. And undoubtedly, the Carrington Event would have