Hey. Just to update on what happened, now that i got my host stats. All the traffic came from yahoo, in like 30 minutes. So my best guess is that my website might have been featured somewhere in their entertainment section. I might never know what really happened though.
Congratulations, then! Enjoy the tidal wave! Hope they become returning visitors though. What kind of site do you have?
And believe me NOT that much people makes that amount a day. (this is a webmasters forums most people around here are pros or manage to make they work good enough but for the average adsense user you´r almost like a millionaire.
Did you find out where all the extra visitors where coming from? As someone above said, adsense earnings can vary, and its not unusual to have a good day every once in awhile, i have saw it happen many times where one of my websites makes between $5 and maybe $30 in a day.
Check your logs first. If you find any suspicious activity like PPC traffic or autosurf traffic, then contact Google.
I will suggest to install google analytics to track the incoming traffic sources . This will help a lot .