What is the good page cpm and ecpm if adsense show unusual earning then should I inform to google team that check my account for unusual activity happened or there is no need to inform them. Thanks
Cpm and ecpm is the same thing except cpm is what cpm you get and ecpm is your average cpm rate. Its really hard to say what a good cpm is, because the higher your cpm is the better it is. But my personal answer is: for me a good cpm is above 10 cents.
From what I can see your either mistyped something or you said a lie, because there is no way to get a cpm of $359. The highest cpm I seen was nothing above $5.
An eCPM can easily be 354USD. If you have 2 Ad Impressions with one click that is worth 70cent google will tell you that your eCPM is 354USD. However you wont be able to maintain that eCPM if you get more traffic.