From Seabed Worker positions provided by mm43, I retrieved the ocean depth searched between 6 May and 9 May and it doesn't look to be the best place as it is fairly rugged and deep near to -4,135 m at lowest point. I'm not sure that something has been already located as the zone is still about 8 x 8 NM:
06 May 2010 22:18 -3,028
06 May 2010 23:54 -3,746
07 May 2010 10:33 -3,362
07 May 2010 12:12 -3,362
07 May 2010 21:08 -3,726
07 May 2010 22:44 -3,800
08 May 2010 00:30 -3,575
08 May 2010 09:19 -3,827
08 May 2010 11:01 -4,003
08 May 2010 12:45 -3,839
08 May 2010 23:18 -3,571
09 May 2010 11:59 -2,769
09 May 2010 09:50 -2,816