At 02:15 on the night of 5/6 June , Commander John Murphy 's , lying some west of Midway , made the second of the submarine force 's two major contributions to the battle 's outcome , although its impact was heavily blunted by Murphy himself .
At 02:15 on the night of 5/6 June , Commander John Murphy 's `` Tambor '' , in the water 90 nmi west of Midway , made the second of the submarine force 's major contributions to the battle 's outcome .