Storms are the Period of Greatest Container Loss
The vastness of the ocean has always posed challenges for seafarers. In modern shipping, a single severe storm can devastate a cargo ship, not to mention the resulting cargo damage. While container losses are common, one notable storm incident was the November 2020 incident involving the container ship One-Apos.
On November 30, 2020, the container ship One-Apos, operated by Ocean Network Express, was transiting the Pacific Ocean approximately 1,600 nautical miles northwest of Hawaii. Carrying over 14,000 TEUs, the vessel encountered an extremely severe storm characterized by fierce waves and raging winds.
Crew members described the ship’s violent rolling, with containers stacked on deck beginning to sag and break free from their moorings.
When the ship arrived at the Port of Kobe, Japan, for assessment and repairs, it was discovered that 1,816 containers had been lost during the storm. Several additional containers were damaged and collapsed on the deck, posing a risk to salvage efforts.
The accident shocked the marine insurance industry and reignited debate about container lashing standards and maintaining ship stability in adverse weather conditions. It highlighted the importance of properly securing cargo and designing ships to withstand the harshest sea conditions.
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Maersk Essen Incident
The Maersk Essen incident is another of the largest maritime container losses during a storm. The accident occurred on January 16, 2021, while the 13,100 TEU (twenty-foot equivalent units) vessel was en route from Xiamen, China, to Los Angeles, California.
The ship was in the North Pacific, approximately 450 nautical miles north of Hawaii, when it encountered adverse weather. This triggered parametric roll, a phenomenon in which the ship’s rolling motion is amplified by waves.
A stack of containers collapsed, resulting in approximately 750 containers lost at sea. Additional containers were damaged but not lost at sea. Fortunately, the crew is reported safe.
The vessel subsequently sailed to the port of Lazaro Cardenas, Mexico, where the damaged containers were unloaded. Repairs and maintenance work have also begun.
M/V Comfort sank, with the loss of 4,293 containers.
The largest container ship loss at sea was not due to weather conditions, but rather structural failure, resulting in the sinking and loss of 4,293 containers.
The M/V Comfort incident occurred on June 17, 2013, while the 8,110 TEU container ship was traveling from Singapore to Jeddah across the Indian Ocean.
The weather was not severe, but the crew noticed an unusual bending in the vessel’s hull. Due to a weak hull, the vessel broke in two.
The bow and stern separated, and the two vessels began drifting in opposite directions. The 26 crew members abandoned ship and were rescued by nearby vessels. On June 27, 2013, the ship sank stern first, carrying approximately 1,700 containers and 1,500 metric tons of fuel oil. On July 6, while the bow was being towed, a fire broke out in the vessel’s hull and quickly spread out of control due to the containers and cargo on board.
The fire consumed the hull, and on July 11, the bow sank along with all 2,400 containers.
The Japanese Ministry of Land, Infrastructure, Transport and Tourism (MLIT) and the Classification of Japanese Ships (ClassNK) immediately launched an investigation.
The investigation concluded that the ship’s hull could not withstand the impact. The ship suffered “stress fatigue,” with the extremities experiencing greater pressure than the center, and the hull was insufficiently strong to withstand it.
This incident served as a warning, and subsequently, six sister ships of the MOL Comfort class were temporarily decommissioned and their hulls reinforced to prevent similar incidents in the future.
