You can use sudo diskutil zeroDisk /dev/rdiskN
on MacOSX as a equivalent to wipefs
on Linux. If you want true secure erase then use: sudo diskutil [0-4] secureErase /dev/rdiskN
The security levels are:
0 - Single-pass zeros.
1 - Single-pass random numbers.
2 - US DoD 7-pass secure erase.
3 - Gutmann algorithm 35-pass secure erase.
4 - US DoE 3-pass secure erase.