When I installed AIS on my cat a few years back I also joined the Marine Traffic website.
Marine Traffic sends me an email when I depart port and arrive at port.
It's worked perfectly for over two years.

On Friday I received an email saying my cat (my MMSI number) had arrived at the Port of Darwin.
I am pretty sure my boat is still on my swing mooring in Melbourne.

I assume the email is just a Marine Traffic website error or could someone else be using my MMSI number?
I rang AMSA and they said they don't know what happened and of course the MT web site is nothing to do with them.

Anyone else had this problem?