A bomb shelter is a structure designed to provide protection against the effects of a

bomb A bomb is an explosive weapon that uses the exothermic reaction of an explosive material to provide an extremely sudden and violent release of energy. Detonations inflict damage principally through ground- and atmosphere-transmitted mechan ...

Types of shelter

Different kinds of bomb shelters are configured to protect against different kinds of attack and strengths of hostile explosives.

Air raid shelter

An air raid shelter is a structure built to protect against bomber planes dropping bombs over a large area. These were commonly seen during

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposi ...

, such as the "

Anderson shelter Air raid shelters are structures for the protection of non-combatants as well as combatants against enemy attacks from the air. They are similar to bunkers in many regards, although they are not designed to defend against ground attack (but many ...

s" of the United Kingdom.

Fallout shelter

A fallout shelter is a shelter designed specifically for a

nuclear war Nuclear warfare, also known as atomic warfare, is a theoretical military conflict or prepared political strategy that deploys nuclear weaponry. Nuclear weapons are weapons of mass destruction; in contrast to conventional warfare, nuclear ...

, with thick walls made from materials intended to block the radiation from

fallout Nuclear fallout is the residual radioactive material propelled into the upper atmosphere following a nuclear blast, so called because it "falls out" of the sky after the explosion and the shock wave has passed. It commonly refers to the radioa ...

resulting from a

nuclear explosion A nuclear explosion is an explosion that occurs as a result of the rapid release of energy from a high-speed nuclear reaction. The driving reaction may be nuclear fission or nuclear fusion or a multi-stage cascading combination of the two, th ...

. Many such shelters were constructed as civil defense measures during the

Cold War The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because t ...

. A

blast shelter A blast shelter is a place where people can go to protect themselves from blasts and explosions, like those from bombs, or in hazardous worksites, such as on oil and gas refineries or petrochemical facilities. It differs from a fallout shelter, ...

protects against more conventional bomb blasts. Its main purpose is to protect from

shock wave In physics, a shock wave (also spelled shockwave), or shock, is a type of propagating disturbance that moves faster than the local speed of sound in the medium. Like an ordinary wave, a shock wave carries energy and can propagate through a med ...

s and

overpressure Overpressure (or blast overpressure) is the pressure caused by a shock wave over and above normal atmospheric pressure. The shock wave may be caused by sonic boom or by explosion, and the resulting overpressure receives particular attention when m ...

and also from

earthquake An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in intensity, fro ...

Bunker

While these forms of bomb shelters are equally amenable to civilians and military use, a bunker is more commonly associated with military use. A bunker may be hastily assembled as part of an ongoing military advance, or to hold a line. Bunkers have also been popular with the

Survivalism Survivalism is a social movement of individuals or groups (called survivalists or preppers) who proactively prepare for emergencies, such as natural disasters, as well as other disasters causing disruption to social order (that is, civil disor ...

subculture.

History

While military units have long built defensive structures to protect against various kinds of hostile bombardment, the use of the phrase "bomb shelter" can be traced at least as far back as 1833. A dictionary from that year defines a "casement" as "a bomb-proof shelter for soldiers in garrison". In 1881, the

United States War Department The United States Department of War, also called the War Department (and occasionally War Office in the early years), was the United States Cabinet department originally responsible for the operation and maintenance of the United States Army, a ...

issued a report in which it indicated that the defenses of

Charleston, South Carolina Charleston is the largest city in the U.S. state of South Carolina, the county seat of Charleston County, and the principal city in the Charleston–North Charleston metropolitan area. The city lies just south of the geographical midpoint ...

included construction at

Fort Moultrie Fort Moultrie is a series of fortifications on Sullivan's Island, South Carolina, built to protect the city of Charleston, South Carolina. The first fort, formerly named Fort Sullivan, built of palmetto logs, inspired the flag and ...

of: The shortening of this phrase to the conventional "bomb shelter" appears in print at least as early as 1895.John Roy Musick ''Sustained honor: a story of the war of 1812'' (1895), p. 383: "He hurried her away to the bomb-shelter, where her father lay raging and fuming, because his infirmity would not allow him to take part in the contest".

References

{{DEFAULTSORT:Bomb Shelter Civil defense he:מקלט (מיגון) war:Sirongan hin bomba