Similar to loitering, a rule applies (less than 2 knots for more than 4 hours) except here the vessel is not transmitting AIS locations.

As such we don’t know what it was doing during this period of time, but it was likely travelling very slowly.

Loitering and missing AIS is shown as a dotted circle.

Learn more: See other types of vessel events and how these are used to analyse a vessel’s movement.