Mountain View, Calif.—Google reported after the closing bell Tuesday that it earned $372 million, or $1.22 a share, in the fourth quarter, up 82% from a year earlier. It missed its earnings estimate for the first time since its IPO—analysts expected $1.76 a share—prompting a 12.4% nosedive in its share price in after-hours trading. For the year, Google earned $1.46 billion, up from $399.0 million in 2004. Revenue totaled $1.92 billion in the fourth quarter, up 86% from a year earlier. Revenue for the year totaled $6.14 billion, an increase of 93% over 2004.