A reader of this blog emailed me for information after reading comments on the Cruise Critic message board that the captain of the Sapphire Princess announced that a person was sighted overboard from the cruise ship. 

The passenger commented that the ship was currently stopped as of around 11:00 PM last night. The crew was reportedly taking a head count of everyone on the ship.  

The cruise ship is sailing from Los Angeles to Hawaii. There have been no updates on the message board since late last night.

I requested information from Princess but have not heard anything yet.

February 26 2013 Update:  False alarm:

Princess says that there was "no person overboard. A passenger they thought they saw someone in the water. As we take reports such as this seriously we mustered all passengers and crw and all were accounted for. There were also no reports from any ships in the area about a missing person."