Off the coasts of New Zealand in the summer of 2009, we dropped 30  ocean bottom seismometers (OBS). Below you can see the original locations and ocean depths. See the full post for a location map. For  information on these instruments, visit http://www.whoi.edu/instruments/viewInstrument.do?id=10347

Locations and ocean depth of 30 seismometers off the coasts of New Zealand.