Sixteen crew members were evacuated from the MV Zim Kingston on Saturday, while five remained onboard to fight the fire.
The ship is anchored several kilometers off the southern coast of Vancouver Island. Residents of the island are not in danger, officials said, and transit of commercial vessels to the ports of Vancouver and Seattle ports is unimpeded.
Canadian Coast Guard Commander JJ Brickett said the company has indicated that the fire has burned itself out. Tug boats had sprayed water around the area of the fire to keep it from spreading, and a helicopter flyover on Sunday gathered evidence that this has worked.
"We can't see any scorching or charring of those adjacent containers, that's a really good sign," Brickett said. "The fire is smoldering as you would expect, and we're continuing to cool on either side."