UPDATE:  SOLVED by Frank at 12:19 CDT

Wakey wakey!  I know you’re there, ready to play.  Get those neurons fired up – hup two three four!

Your riddle today is an event.  It’s something you know about.  We talk about it all the time.  Here are your clues:

Today’s event is not one, specific time.

This event causes a structure, which is temporary.

The first time this event was detected scientifically was in 1971, but it’s believed to be part of an 1859 event.

When this event occurs, it is magnificent.

The event causes gorgeous after-effects.

The event itself is little understood.

It is associated with speed and power.

It happens everywhere, all the time.

We love it, but it causes us problems.

Okay, that should do it.  I’m presenting an event a little differently today, but that won’t cause you any problems.  I don’t expect this riddle to be up long, but you should have some fun with it.  I’m lurking in the comments, as usual.

No spiders today, Trudy