Google Has a Bad Quarter, Trading Halted

Google earnings are out, and they're bad. The Motorola acquisition has hurt them, costs are up, and ad revenue increased only modestly. Naturally, their stock price immediately plunged:

Google shares fell fast after the release and are now halted. The stock dropped as much as 11% to $676 before bouncing back and being halted at $687.30, down 9%.

Wait a second. What am I missing here? Trading has been halted because Google shares dropped 9%? That hardly seems like a halt-worthy decline. I wonder what else is going on?