The vessel was a steamship[citation needed][dubious–discuss] built in 1958. At its final port of call, Sansinena had discharged its cargo of crude oil and was taking on ballast and fuel when a massive explosion split the ship in half and obliterated multiple port buildings. The blast shattered windows for miles around, flung the entire midship bridge on the wharf, and triggered a fire that spread across the dock and around the tanker. The Los Angeles Fire Department soon arrived on the scene to contain the blaze and rescue survivors. One of the fires, fed by underground fuel lines, burned for four days.
A United States Coast Guard investigation later concluded that the incident was caused by flammable hydrocarbon vapor buildup on the deck of the ship caused by a poorly designed and deteriorating venting system as well as an unsafe practice (leaving all vents open during ballasting). The ignition source was never identified.
The official casualty count was:
9 dead (eight crew and one dock security guard).
46 injured, 9 requiring hospitalization.
The explosion of Sansinena and technical details of the incident were featured as the first segment of the Engineering Disasters in an episode of History Channel's Modern Marvels television series.
The Port of Los Angeles is a seaport managed by the Los Angeles Harbor Department, a unit of the City of Los Angeles. It occupies 7,500 acres (3,000 ha) of land and water with 43 miles (69 km) of waterfront and adjoins the separate Port of Long Beach. Promoted as "America's Port", the port is located in San Pedro Bay in the San Pedro and Wilmington neighborhoods of Los Angeles, approximately 20 miles (32 km) south of downtown.
The first USS Batfish (SS/AGSS-310) is a Balao-class submarine, known primarily for sinking three Imperial Japanese Navy submarines in a 76-hour period, in February 1945. USS Batfish is the first vessel of the United States Navy to be named for the batfish, a type of anglerfish that crawls about on the sea floor.
The first USS Spadefish (SS/AGSS-411), a Balao-class submarine, was the first ship of the United States Navy to be named for the spadefish. Although she was commissioned late in the war and spent only one year in the Pacific war zone, she was able to run up a record of 88,091 tons in 21 ships and numerous trawlers sunk.
The T2 tanker, or T2, was a class of oil tanker constructed and produced in large numbers in the United States during World War II. Only the T3 tankers were larger "navy oilers" of the period. Some 533 T2s were built between 1940 and the end of 1945. They were used to transport fuel oil, diesel fuel, gasoline and sometimes black oil-crude oil. Post war many T2s remained in use; like other hastily built World War II ships pressed into peacetime service, there were safety concerns. As was found during the war, the United States Coast Guard Marine Board of Investigation in 1952 stated that in cold weather the ships were prone to metal fatigue cracking, so were "belted" with steel straps. This occurred after two T2s, Pendleton and Fort Mercer, split in two off Cape Cod within hours of each other. Pendleton's sinking is memorialized in the 2016 film The Finest Hours. Engineering inquiries into the problem suggested the cause was poor welding techniques. It was found the steel was not well suited for the new wartime welding construction. The high sulfur content made the steel brittle and prone to metal fatigue at lower temperatures.
SS Lane Victory is an American Victory-class cargo ship used in World War II, the Korean War and Vietnam War. The ship was preserved in 1989 to serve as a museum ship in the San Pedro area of Los Angeles, California. As a rare surviving Victory ship, she was designated a U.S. National Historic Landmark.
Hammac was a steam tank ship built in 1920–1921 by Bethlehem Shipbuilding Corporation of Alameda for the United States Shipping Board as part of the wartime shipbuilding program of the Emergency Fleet Corporation (EFC) to restore the nation's Merchant Marine. Early in 1923 the vessel together with two other tankers was sold to General Petroleum Corporation and renamed Emidio. The tanker spent the vast majority of her career carrying oil along the West Coast of the United States as well as between West and East coast. In December 1941 she was shelled and damaged by the Japanese submarine I-17 and eventually wrecked with a loss of five crewmen.
SS Marine Sulphur Queen, formally Esso New Haven, was a T2 tanker converted to carry molten sulphur. It is notable for its disappearance in 1963 near the southern coast of Florida, taking the lives of 39 crewmen.
California Shipbuilding Corporation built 467 Liberty and Victory ships during World War II, including Haskell-class attack transports. California Shipbuilding Corporation was often referred to as Calship.
Ralph J. Scott, also formerly known as Fireboat #2, is a 100-foot (30 m) fireboat that was attached to the Los Angeles Fire Department serving the Port of Los Angeles. She was retired in 2003 after 78 years and replaced by Warner L. Lawrence. Ralph J. Scott is undergoing restoration near the Los Angeles Maritime Museum in San Pedro. On 30 June 1989, she was listed as a National Historic Landmark. She is currently located at the Los Angeles Fire Department, Fire Station 112, at 444 South Harbor Blvd, Berth 86, San Pedro, California.
SS Catalina, also known as The Great White Steamer, was a 301-foot steamship built in 1924 that provided passenger service on the 26-mile passage between Los Angeles and Santa Catalina Island from 1924 to 1975. According to the Steamship Historical Society of America, Catalina carried more passengers than any other vessel anywhere. From August 25, 1942, until April 22, 1946, the ship served as the Army troop ferry U.S. Army FS-99 at the San Francisco Port of Embarkation transporting more than 800,000 troops and other military personnel between embarkation camps and the departure piers.
Montebello was a steam oil tanker built in 1920–1921 by the Southwestern Shipbuilding Co. of San Pedro for Union Oil Company. It was designed to carry oil and petroleum products along the West Coast of the United States and Canada, as well as between the United States and Chile. In December 1941 the tanker was sunk on one of her regular trips by the Japanese submarine I-21.
The SS Enid Victory' (MCV-712), was a type VC2-S-AP2 victory ship built by Permanente Metals Corporation, Yard 2, of Richmond, California. The Maritime Administration cargo ship was named after Enid, Oklahoma. It was the 730th ship built at the Kaiser yards. Its keel was laid on May 17, 1945. The ship was christened on June 27, 1945, with Enid Mayor Luther A. Wells in attendance. The ship was in service during World War II, Korea War, and the Vietnam War.
SS Golar Patricia was an oil tanker built by Kawasaki Heavy Industries of Sakaide in Japan for Gotaas-Larsen Shipping Company and launched in 1969. Gotaas-Larsen is a Norwegian company but it registered Golar Patricia in Monrovia to use the Liberian flag of convenience.
Todd Pacific Shipyards, Los Angeles Division was a shipyard in San Pedro, Los Angeles, California. Before applying its last corporate name, the shipyard had been called Los Angeles Shipbuilding & Dry Dock Company and Todd Shipyards, Los Angeles Division. Under those three names, the San Pedro yard built at least 130 ships from 1917 to 1989.
The SS Rutland Victory was a Victory ship built during World War II under the Emergency Shipbuilding program. It was built and launched by the Oregon Shipbuilding Corporation on May 9, 1944, and completed on May 29, 1944. The ship's United States Maritime Commission designation was VC2-S-AP3 and hull number 104 (1020). The ship was Oregon Shipbuilding Corporation's 20th victory ship. The Maritime Commission turned it over for Merchant navy operation to a civilian contractor, the United States Lines.
California during World War II was a major contributor to the World War II effort. California's long Pacific Ocean coastline provided the support needed for the Pacific War. California also supported the war in Europe. After the Japanese attack on Pearl Harbor on December 7, 1941, most of California's manufacturing was shifted to the war effort. California became a major ship builder and aircraft manufacturer. Existing military installations were enlarged and many new ones were built. California trained many of the troops before their oversea deployment. Over 800,000 Californians served in the United States Armed Forces. California agriculture, ranches and farms were used to feed the troops around the world. California's long coastline also put the state in fear, as an attack on California seemed likely. California was used for the temporary and permanent internment camps for Japanese Americans. The population grew significantly, largely due to servicemen who were stationed at the new military bases/training facilities and the mass influx of workers from around the U.S. in the growing defense industries. With all the new economy activity, California was lifted out of the Great Depression. Over 500,000 people moved to California from other states to work in the growing economy. California expanded its oil and mineral production to keep up with the war demand.
Larry Doheny was a tanker ship that sank during World War II. The 430 ft x 59 ft x 33 ft oil tanker had nine cargo tanks and was built in 1921 by the Sun Shipbuilding & Dry Dock Company in Chester, Pennsylvania. The first owner of Larry Doheny was the Norwegian America Line and it was called SS Foldenfjord. In 1928, the ship was sold to the Richfield Oil Company, who owned many gas stations throughout the west coast of the U.S. Larry Doheny’s homeport was Los Angeles.
R. W. Gallagher was a steam turbine-powered tanker built in 1938 by Bethlehem Shipbuilding Corporation of Quincy for Standard Oil Company of New Jersey with intention of operating between the oil-producing ports of the southern United States and Mexico and the Northeast. The tanker spent her entire career in coastwise trade and was torpedoed and sunk on one of regular journeys in July 1942 by German submarine U-67.
USS LSM-380 was a LSM-1-class landing ship medium in the United States Navy during World War II. She was later sold to Fred Devine to be used as a salvage ship, renamed MV Salvage Chief. She is the last known surviving LSM of World War II in the world.
General Steamship Company was founded in 1920 in Houston, Texas, United States, as a Private Company, and now goes by Gensteam since 1996. General Steamship Company has a fleet of cargo ships that operate worldwide. Gensteam has a Gensteam Operations Desk website that tracks all shipping logistics. Gensteam headquarters is now in San Francisco, California. General Steamship Company was part owner of American Pacific Steamship Company in New York state and Los Angeles during and post World War II. American Pacific Steamship Company was founded in 1942 in New York City, and was previously called Los Angeles Tanker Operators Inc. which operated T2 tanker ships. During World War II the General Steamship Company and American Pacific Steamship Company were active with charter shipping with the Maritime Commission and War Shipping Administration.
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