The sinking of MV Conception
occurred on September 2, 2019, when the 75-foot (23 m) dive boat caught fire and eventually sank off the coast of Santa Cruz Island, California, United States. The boat was anchored overnight at Platts Harbor, a small undeveloped bay on the north shore of the island, with 33 passengers and 1 crew member asleep below decks when fire broke out shortly after 3 a.m. Five of the crew members, whose sleeping quarters were on the top deck, were forced by the fire to jump overboard but not before placing an initial mayday call to the Coast Guard and attempting to alert the passengers. The crew retrieved the Conception'
s skiff and motored to a nearby boat where a second radio dispatch was made. The loss of the boat spurred a rescue operation by the United States Coast Guard.