According to data obtained from the Naval Safety Center by The Day through a Freedom of Information Act request, there were 906 accidents involving submarines from late 2004 through 2013. The data also revealed:

• The most accident-prone submarine was the USS Alabama. The ballistic-missile submarine, which is based at the Naval Base Kitsap in Washington, has two crews. The Gold Crew had 44 mishaps and the Blue Crew had two, for a total of 5 percent of the accidents overall. None of the accidents, however, was major.

• Four other submarines each had more than 20 accidents - the USS Pennsylvania, USS Albuquerque, USS Key West and USS Seawolf.

• Six submarines had more than one Class A or B accident - the USS Ohio, USS Georgia, USS Pennsylvania, USS Philadelphia, USS Texas and USS San Juan. The USS Key West had three.

• On the Key West, someone injured his hand while trying to cut a rubber air hose and a sonar array cable was damaged twice, once because a shark bit into it.

• The most accident-prone location was the Trident Refit Facility in Kings Bay, Ga., where 72 of the mishaps, or nearly 8 percent, occurred. Many involved someone injuring a shoulder, back or hand while repairing a submarine.

• There was one fatality in 2005, 2008 and 2013, and two in 2007.

Explore the data

The Day worked with Visible Government Online Inc., an information technology and services company in Brunswick, Maine, to create a searchable database using data obtained from the Naval Safety Center by The Day through a Freedom of Information Act request.

Explore the data now.