How about that Aircraft carrier sized asteroid that just missed us ;-)
There are big rocks like that near missing us all the time , that particular one has probly been crossing our orbit every few years for many centurys.
This solar prominance is a warning of a potential event of really massive proportions.
Look at the size of that thing!
The Earth wouldn't look like a flea on its back.
If it pops the energy release would be big too.
If it had been directed twards the pre electronic Earth we would not even be sure that something had happened, but this probly does hit the Earth every few centurys.
If it pops and the ejection is not twards earth we will get a lightshow , no more.
If it does not pop we will learn something new about the Sun.
If it pops and the blast is coming our way , we will have a bit of time to discuss it and prepare, perhaps isolate some important systems and perhaps unplug a few things from the power supplys and from antennas.
And prepare to launch a few new satilites, I wonder if it is too late to invest in Rockwell?