The coronal mass ejection arrived at about 5 million mph, triggering a geomagnetic storm high in Earth’s atmosphere.
“These were some of the most amazing auroras I have ever seen,” said photographer Fredrik Broms of Kvaløya, Norway.
He told Spaceweather. com: “The colors were absolutely stunning with purple and deep blood-red in addition to the green. It was a night I will never forget!”
Observers said the Northern Lights were so vivid across Scandinavia that they could even be seen through rain clouds.
The sunspot that created the stream of charged particles was large enough to be seen from Earth with the naked eye in the setting sun.
There were no reports of electronic or communications difficulties due to the geomagnetic storm.
Photo: Ole C. Salomonsen