Anybody know what happened here?
Looks like it could be a case of what in the business is called a “Punch-through” I.e. the foundation under one of the legs gave way, either while pre-loading, or because of uneven or excessive weight on the legs during operation.
PS> Some parts of the GoM is known to have punch-through problems, but I’m not familiar enough with which part(s), although soft mud off delta areas are a known problem.
Stratified soil is also a common cause of punch-through.