A gas explosion is an explosion resulting from mixing a gas, typically from a gas leak, with air in the presence of an ignition source. In household accidents, the principal explosive gases are those used for heating or cooking purposes such as natural gas, methane, propane, butane. In industrial explosions many other gases, like hydrogen, as well as evaporated (gaseous) gasoline /petrol or ethanol play an important role. Industrial gas explosions can be prevented with the use of intrinsic safety barriers to prevent ignition.
The Richmond, Indiana, explosion was a double explosion in the United States in 1968. It occurred at 1:47 PM EST on April 6, in downtown Richmond, Indiana. The explosions killed 41 people and injured more than 150. The primary explosion was due to natural gas leaking from one or more faulty transmission lines under the Marting Arms sporting goods store, located on the southeast corner of the intersection of 6th and Main streets. A secondary explosion was caused by gunpowder stored inside the building.
The 2006 Atlas Creek pipeline explosion was a disaster that occurred on 12 May 2006 at Atlas Creek Island, near Lagos, Nigeria, when a pressurized petrol pipeline that had been ruptured by thieves exploded, killing 150 people. The Nigerian Red Cross said that vandals had originally drilled holes into the pipe to steal fuel, and that local people had then come down with jerrycans to fill them with fuel. Approximately five hundred jerrycans were found at the scene of the explosion, which incinerated anyone within a 20-metre radius. Many victims were buried nearby in a mass grave.
The 2006 Abule Egba pipeline explosion is a disaster that occurred in the heavily populated neighborhood of Abule Egba in Lagos, Nigeria, on 26 December 2006, killing hundreds of people. There were originally believed to be around 500 deaths, but it was later confirmed that the loss was smaller.
On 15 May 2008 a pipeline explosion occurred in the community of Ijegun, a suburb north of Lagos, Nigeria. The explosion took place after a bulldozer struck an oil pipeline. The Lagos police have stated that the explosion appears to be an accident, and not the work of thieves, as in past pipeline explosions near Lagos. Construction workers accidentally broke an underground pipeline from which fuel started to spill out; moments later an explosion occurred.
The San Bruno pipeline explosion occurred at 6:11 pm PDT on September 9, 2010, in San Bruno, California, when a 30-inch (76 cm) diameter steel natural gas pipeline owned by Pacific Gas & Electric exploded into flames in the Crestmoor residential neighborhood 2 miles (3.2 km) west of San Francisco International Airport near Skyline Boulevard and San Bruno Avenue. The loud roar and shaking led some residents of the area, first responders, and news media to initially believe that it was an earthquake or that a large airplane had crashed. It took crews nearly an hour to determine it was a gas pipeline explosion. As of September 29, 2010, the death toll was eight people. The United States Geological Survey registered the explosion and resulting shock wave as a magnitude 1.1 earthquake. Eyewitnesses reported the initial blast "shot a fireball more than 1,000 feet (300 m) in the air".
The 2010 Puebla oil pipeline explosion was a large oil pipeline explosion that occurred at 5:50 am CST on December 19, 2010, in the city of San Martín Texmelucan de Labastida, Puebla, Mexico. The pipeline, running from Tabasco to Hidalgo, was owned by the Pemex petroleum company, and exploded after thieves from the Los Zetas drug cartel attempted to siphon off the oil. The gas explosion and resulting oil fire killed 29 people, including thirteen children, and injured 52. Some of the flames in the fire became ten metres high, and the smoke towered over the city. Firefighters eventually controlled the blaze, but electricity and water remained cut following the explosions, and the military was deployed to the site. Mexican President Felipe Calderón visited the explosion site on the day of the incident to offer condolences to the victims' families. The fire was one of the deadliest in Mexican history, largely destroying an area of five-kilometre radius, and some oil may have polluted the Atoyac River.
On 18 January 2019, a pipeline transporting gasoline exploded in the town of Tlahuelilpan, in the Mexican state of Hidalgo. The blast killed at least 137 people and injured dozens more. Mexican authorities blamed fuel thieves, who had illegally tapped the pipeline. The explosion was particularly deadly because large crowds of people had gathered at the scene to steal fuel. Security forces tried to persuade people to move away from the scene, but they were outnumbered and asked not to engage with civilians for fear of causing a violent confrontation. The leak was reported at 17:04 CST (11:04 UTC), and the explosion occurred two hours later at 19:10. It took about four hours for responders to extinguish the fire.
