The severe geomagnetic storms created by such intense solar eruptions can disrupt satellite and high-frequency radio communications as well as power grids.
And beyond creating vivid aurora displays, they can also put astronauts in orbit at risk of excessive radiation exposure.
The sun is currently approaching the peak of its 11-year cycle of activity.
Despite recent intense solar flares, scientists say the current cycle, which began in 2008, is producing the weakest solar maximum period in of the past century.
The latest solar eruptions occurred in an area of the sun that should not bring a direct hit to Earth, but scientists were on the alert should the planet receive a glancing blow.
Time-Lapse: Solar and Helosphere Observatory - NASA