The requested vessel with name SEA EMERALD and MMSI:0 and IMO:7941148 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
SEA EMERALD 8405816 371028000 CHITTAGONG Jul 17, 2013 07:00 UTC

Also, you may try to find the vessel in our comprehensive Vessels Database or track this ship on the map.