In a deep ocean ferromanganese crust an excess of 60 Fe radioactivity was measured by means of high sensitivity accelerator mass spectrometry. The enhanced concentrations measured in the first two of three layers (corresponding to a time span of 0 -2.8 Myr and 3.7 -5.9 Myr, respectively) suggest the deposition of supernova produced 60 Fe on earth. There is even a weak indication that the flux into the crust was higher about 5 Myr ago. PACS numbers: 97.60.Bw, 26.30. + k, 98.38.Am
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