Vessel trying to anchor very close to own anchored vessel

Report Text:

While at anchor in poor visibility conditions, an approaching vessel attempted to anchor very close to the vessel’s position. The OOW was monitoring the movement of the other vessel, called her on the VHF with a request to ensure there was a greater margin of safety.

CHIRP Comment

This was a good practice by the OOW, due to his alertness and vigilance the risk was averted.