Last may the dire event predictors were busy generating that very fear in some of the media reporting. The resultant solar storm really was quite spectacular.
The thing about the Carrington event was that it was recorded as well as it could be for the time. There's a way down the road to determine when a larger or smaller events occur. All we have to do is record the rise in global carbon 14 levels. We'll know in about a year.
The Carrington even in the 1800's caused a rise in the global C-14 level of about one percent. If last May's level 5 solar storm were comparable the C-14 levels will have risen by around one percent as well.