. "30.3728" . "6.85E8" . . . . "64.7" . . . . . . . "1914-01-07" . "1912-10-12" . . "SM U-31 (Germany)" . "c. 13 January 1915 \u2013 Mined in the North Sea; all hands lost." . . "SM U-31 (Germany)" . "4.05" . "1914-09-18" . "6.32" . . "1912-03-29" . . . "8.78E8" . . . . . . .