To date, the Thomas Fire and Debris Flow ranks as Santa Barbara's most deadly disaster with 23 casualties, so if 34 people perished from the Conception boat fire, it would become the deadliest incident in the recorded history of Santa Barbara.

‘Worst Case Scenario’ in Santa Cruz Island Boat Fire
Nick Welsh & Jean Yamamura
Santa Barbara Independent
Sep 3, 2019

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In the most deadly disaster in Santa Barbara history — maritime or otherwise — 34 people are presumed dead after the Conception, a well-known chartered dive boat, violently burst into flames 20 yards from Santa Cruz Island where it was moored in the early morning hours of Labor Day.

As of Tuesday morning, 20 bodies had been recovered from the wreckage and taken to the County of Santa Barbara’s coroner office for storage and forensic evaluation. Fourteen people were still missing. The cause of the fire remains far from certain, but witnesses described a series of explosions taking place at about the same time the first frantic mayday call came in at 3:30 a.m.

...Sheriff Bill Brown only disclosed the genders of the recovered victims — 11 females and nine males — could be ascertained, but said that most of the passengers were from the Santa Cruz and San Jose area. Brown said authorities have the names of all passengers and crew on board the vessel, but that no names will be released pending notification of next of kin.

Five crew members, sleeping on the deck, managed to escape. One crew member, however, did not. In addition, it’s believed that Kristy Finstad, co-owner of Worldwide Diving Adventures, the company that chartered the boat for a three-day scuba diving tour of the Channel Islands, also perished.

The facts, such as they are known, are as follows. As of 3:30 a.m., the U.S. Coast Guard received a garbled mayday alert from the boat. At that point, the boat was reportedly fully engulfed; but according to Brown, no explosions were reported, referred to, or could be heard. Within an hour, the Coast Guard has boats dispatched to the scene with aircraft support.

By then, five crew members had boarded a dingy and paddled to a boat 200 yards away, The Grape Escape. Owners of that boat, Don and Shirley Hansen of Madera, California, reported one crew member had a broken ankle, another a broken foot. A couple crew members went back to the Conception to see if they could help. They could not. Smoke was thick and searing. A voice on one radio transmission complained about not being able to breathe. The Hansens reported hearing a number of explosions.

...Longtime Santa Barbara fisherman Nick Voss, familiar with the boat and Truth Aquatics, praised the operation. “It’s so well run, so clean, so tight,” he said. “Their boats are just immaculate. You could eat off the engine.”

As to who the passengers were, speculation abounds. According to several sources, the boat had been chartered by a group from the San Francisco Bay Area for the three-day Labor Day excursion. The same group had reportedly leased the boat many times in the past and that many of its members were Asian or Asian-American. A Japanese news service reportedly had been offering to pay Santa Barbara boat owners for rides out to the spot the Conception went up in flames.

Early indications suggest whatever happened happened with such sudden ferocity that the victims had little time to react. Unconfirmed reports suggest smoke inhalation might have been the culprit in some deaths. In others, limbs are missing, suggesting perhaps an explosion was involved. The presence of lithium batteries — used in recharging high end photographic equipment common to such expeditions — has raised the possibility of a lithium battery fire. Typically, such batteries are recharged in the galley, also known as the salon. For those below decks to make their way up the escape hatch, they’d have to run through the salon. Early indications suggest the fire erupted so suddenly that none of the victims made it to the salon.

...An alphabet soup of governmental agencies are involved in the response efforts: the Coast Guard, Ventura and Santa Barbara counties, the California Office of Emergency Services, and the National Park Services, among others. Also helping out was a small private nautical service company out of Ventura, Vessel Assist, which provides the maritime equivalent of roadside assistance commonly provided by Triple A.