Data shows ship crossed over oil pipeline that ruptured
A massive cargo ship that was supposed to be at anchor was buffeted by high winds during a January storm and repeatedly crossed over an undersea oil pipeline that later ruptured off the Southern California coast, according to vessel monitoring data.
Federal investigators suspect that on Jan. 25 the anchor from the Panama-registered container ship MSC DANIT caught the pipe and pulled it across the seafloor, Coast Guard Lt. j.g. SondraKay Kneen said. Tracking data analyzed by the environmental group Skytruth showed that on that date the MSC DANIT drifted several times over the pipeline that is about 100 feet below the surface.
The storm came as an overflow of vessels were backed up outside the Los Angles-Long Beach ports complex, which has experienced huge delays as shipping volumes surge amid the pandemic. It had winds up to 63 mph and 17 foot seas, prompting 24 vessels to go to deeper waters to ride it out, according to a report by the Marine Exchange of Southern California, which oversees vessel traffic at the ports.
The tracking data “is looking very consistent with a vessel that is in trouble and getting knocked around out there,” Skytruth President John Amos said Monday. He said other ships also could have dragged anchor over the pipeline, and Kneen acknowledged the Coast Guard is “still looking at multiple vessels and scenarios.”
The Skytruth data is based on automatic broadcasts from the DANIT showing its location and status. It remained around its anchor point from Jan. 18 until early on Jan. 25, then began drifting and erratically while still broadcasting that it was at anchor, the data showed.
The ship crossed over the pipeline at 5:47 a.m., then three more times over the next three hours, before its status changed to “under way” and it moved farther offshore and behind an island, presumably to shelter from the storm, Amos said.
The data doesn’t explain the long delay between the anchor dragging and the sudden appearance of oil in the water off Huntington Beach in early October.
“The bigger question is how is responsibility going to be determined?” Amos said. “If it turns out a ship in distress did snag this pipeline and pull it out of place, does that explain an oil spill that happened many months later?”
The Coast Guard is trying to determine if the DANIT’s anchor drag caused the leak, if the line was hit by something else at a later date, or if it failed due to a preexisting problem, Kneen said, adding the investigation could take a year.
The accident just a few miles offshore sent about 25,000 gallons of crude into the water and then onto the sands of Huntington Beach and several other communities. While not as bad as initially feared, it has reignited the debate over offshore drilling in federal waters in the Pacific, where hundreds of miles of pipelines were installed decades ago.