4 with winds exceeding 100 kilometres per hour (62 mph) causes all personnel on the rig to cease operations.
08:00 – 11:00: The Usumacinta begins moving with the 8 metres (26 ft) seas, because its ballast and anchor points have not been properly set.
11:30: The Usumacinta's auxiliary cover below its cantilever collides with the wellhead Kab 121, which begins leaking oil and gas.
15:30: The storm valves on Kab 121 fail and hydrogen sulfide is detected, prompting the order to evacuate the platform.
This lifeboat started out with poor visibility due to the oil from the leaking well Kab 121.
[3] An early estimate of the oil leak from Kab 121 was 67 cubic metres (422 bbl) per day of light crude.
On the 20th of November, Kab 121 ignited again, this time the fire destroyed the remains of the Derrick and was controlled on December 3.