Via gCaptain and the crew of the Maersk Iowa;
The only details we know are what we can get from the video: The fire occurred at 13:16 local time on January 10, 2015 approximately 50 miles off the Georgia-Florida border and was believed to have started when the No. 5 cylinder blew.
Skip to 16 minutes for the action (if the video didn’t start there already). Captain gets to the bridge at 19 minutes. At the 45-minute mark, you can here the Captain the discussing the details of the incident with the Coast Guard.