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A conflagration is a large
fire Fire is the rapid oxidation of a material (the fuel) in the exothermic chemical process of combustion, releasing heat, light, and various reaction Product (chemistry), products. At a certain point in the combustion reaction, called the ignition ...
. Conflagrations often damage human life, animal life, health, and/or property. A conflagration can begin accidentally, be naturally caused (
wildfire A wildfire, forest fire, bushfire, wildland fire or rural fire is an unplanned, uncontrolled and unpredictable fire in an area of Combustibility and flammability, combustible vegetation. Depending on the type of vegetation present, a wildfire ...
), or intentionally created (
arson Arson is the crime of willfully and deliberately setting fire to or charring property. Although the act of arson typically involves buildings, the term can also refer to the intentional burning of other things, such as motor vehicles, wat ...
). A very large fire can produce a
firestorm A firestorm is a conflagration which attains such intensity that it creates and sustains its own wind system. It is most commonly a natural phenomenon, created during some of the largest bushfires and wildfires. Although the term has been used ...
, in which the central column of rising heated air induces strong inward winds, which supply
oxygen Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as wel ...
to the fire. Conflagrations can cause
casualties A casualty, as a term in military usage, is a person in military service, combatant or non-combatant, who becomes unavailable for duty due to any of several circumstances, including death, injury, illness, capture or desertion. In civilian usa ...
including deaths or injuries from
burn A burn is an injury to skin, or other tissues, caused by heat, cold, electricity, chemicals, friction, or ultraviolet radiation (like sunburn). Most burns are due to heat from hot liquids (called scalding), solids, or fire. Burns occur mainl ...
s,
trauma Trauma most often refers to: * Major trauma, in physical medicine, severe physical injury caused by an external source * Psychological trauma, a type of damage to the psyche that occurs as a result of a severely distressing event *Traumatic i ...
due to collapse of structures and attempts to escape, and
smoke inhalation Smoke inhalation is the breathing in of harmful fumes (produced as by-products of combusting substances) through the respiratory tract. This can cause smoke inhalation injury (subtype of acute inhalation injury) which is damage to the respirator ...
.
Firefighting Firefighting is the act of extinguishing or preventing the spread of unwanted fires from threatening human lives and destroying property and the environment. A person who engages in firefighting is known as a firefighter. Firefighters typically ...
is the practice of extinguishing a conflagration, protecting life and property and minimizing damage and injury. One of the goals of
fire prevention Fire prevention is a function of many fire departments. The goal of fire prevention is to educate the public on the precautions which should be taken to prevent potentially harmful fires and how to survive these fires in the event that they do o ...
is to avoid conflagrations. When a conflagration is extinguished, there is often a
fire investigation Fire investigation, sometimes referred to as origin and cause investigation, is the analysis of fire-related incidents. After firefighters extinguish a fire, an investigation is launched to determine the origin and cause of the fire or explosion ...
to determine the cause of the fire.


Causes and types

During a conflagration a significant movement of air and combustion products occurs. Hot gaseous products of combustion move upward, causing the influx of more dense cold air to the combustion zone. Sometimes, the influx is so intense that the fire grows into a firestorm. Inside a building, the intensity of gas exchange depends on the size and location of openings in walls and floors, the ceiling height, and the amount and characteristics of the combustible materials.


Types

*Industrial conflagrations include fires at
oil refineries An oil refinery or petroleum refinery is an industrial process plant where petroleum (crude oil) is transformed and refined into useful products such as gasoline (petrol), diesel fuel, asphalt base, fuel oils, heating oil, kerosene, liquefie ...
, such as the 2009 Cataño oil refinery fire. *One or several fire(s) in
forest A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' ...
s or other wilderness areas, i.e. wildfire(s), may grow up into or unite to a conflagration. *An urban conflagration is defined as a "large, destructive fire that spreads beyond natural or artificial barriers; it can be expected to result in large monetary loss and may or may not include fatalities. An urban conflagration moves beyond a block and destroys whole sections of a city." Notable examples includes the Great Fire of Tartu in 1775, the
Great Fire of Turku The Great Fire of Turku ( fi, Turun palo, sv, Åbo brand and russian: Пожар Або) was a conflagration in the city of Turku in 1827. It is still the largest urban fire in the history of Finland and the Nordic countries. The city had burned ...
in 1827, and the Great Fire of Hamburg in 1842. The Camp Fire in Paradise, California in 2018 burned 18,000 structures and killed 85 people. *In some ships, a large uncontained fire may quickly lead to a ship conflagration. *The conflagration of a building is known as a
structure fire A structure fire is a fire involving the structural components of various types of residential, commercial or industrial buildings, such as barn fires. Residential buildings range from single-family detached homes and townhouses to apartments ...
.


Notable examples


See also

*
Deflagration Deflagration (Lat: ''de + flagrare'', "to burn down") is subsonic combustion in which a pre-mixed flame propagates through a mixture of fuel and oxidizer. Deflagrations can only occur in pre-mixed fuels. Most fires found in daily life are diffu ...
*
Fire department A fire department (American English) or fire brigade (Commonwealth English), also known as a fire authority, fire district, fire and rescue, or fire service in some areas, is an organization that provides fire prevention and fire suppression se ...


References


External links


Conflagration on map
(AccidentMap.com Accident on map) {{Authority control Combustion Fire Firefighting Types of fire