Shark attack - wikipedia Shark attack For other uses, see Shark Attack ( disambiguation ). Shark attack A sign warning about the presence of sharks off Salt Rock, South Africa Classification and external resources ICD - 10 W56 ICD - 9 - CM E906. 3 E906. 3 ( edit on Wikidata ) A shark attack is an attack on a human by a shark. Every year, around 80 unprovoked attacks are reported worldwide. Despite their relative rarity, many people fear shark attacks after occasional serial attacks, such as the Jersey Shore shark attacks of 1916, and horror fiction and films such as the Jaws series. Out of more than 489 shark species, only three are responsible for a double - digit number of fatal, unprovoked attacks on humans : the great white, tiger, and bull. The oceanic whitetip has probably killed many more castaways, but these are not recorded in the statistics. Contents 1 Statistics 2 Species involved in incidents 3 Types of attacks 3.1 Provoked attack 3.2 Unprovoked attack 4 Reasons for attacks 5 Prevention 5.1 Shark nets 5.2 Drumlines 5.3 Other protection methods 6 Media impact 7 List of notable victims 8 See also 9 References 10 External links Statistics Confirmed unprovoked shark attacks, 1958 -- 2014 Region Total attacks Fatal attacks Last fatality United States ( Excluding Hawaii ) 1104 35 2012 Australia 536 72 2017 Africa 346 94 2015 Asia 129 48 2000 Hawaii 137 10 2015 Pacific Islands / Oceania ( Excluding Hawaii ) 126 49 2016 South America 117 26 2015 Antilles and Bahamas 70 16 2013 Middle America 56 27 2011 Europe 52 27 New Zealand 49 9 2013 Réunion Island 39 19 2017 Unspecified / Open ocean 21 7 1995 Bermuda 0 -- Total : 2,785 439 2017 Sources : Australian Shark Attack File for unprovoked attacks in Australia International Shark Attack File for unprovoked attacks in all other regions Last Updated : 19 February 2015 According to the International Shark Attack File ( ISAF ), between 1958 and 2016 there were 2,785 confirmed unprovoked shark attacks around the world, of which 439 were fatal. In 2000, there were 79 shark attacks reported worldwide, 11 of them fatal. In 2005 and 2006, this number decreased to 61 and 62 respectively, while the number of fatalities dropped to only four per year. The 2016 yearly total of 81 shark attacks worldwide was on par with the most recent five - year ( 2011 -- 2015 ) average of 82 incidents annually. By contrast, the 98 shark attacks in 2015, was the highest yearly total on record. There were four fatalities worldwide in 2016, which is lower than the average of eight fatalities per year worldwide in the 2011 -- 2015 period and six deaths per annum over the past decade. In 2016 58 % of attacks were on surfers. Despite these reports, however, the actual number of fatal shark attacks worldwide remains uncertain. For the majority of Third World coastal nations, there exists no method of reporting suspected shark attacks ; therefore, losses and fatalities near - shore or at sea often remain unsolved or unpublicized. Of these attacks, the majority occurred in the United States ( 53 in 2000, 40 in 2005, and 39 in 2006 ). The New York Times reported in July 2008 that there had been only one fatal attack in the previous year. On average, there are 16 shark attacks per year in the United States, with one fatality every two years. According to the ISAF, the US states in which the most attacks have occurred are Florida, Hawaii, California, Texas and the Carolinas, though attacks have occurred in almost every coastal state. Australia has the highest number of fatal shark attacks in the world, with Western Australia recently becoming the deadliest place in the world for shark attacks with total and fatal shark bites growing exponentially over the last 40 years. Since 2000 there have been 15 fatal shark attacks along the West Australian coast with divers now facing odds of one in 16,000 for a fatal shark bite. Other shark attack hotspots include Réunion Island, Boa Viagem in Brazil, Makena Beach, Maui, Hawaii and Second Beach, Port St. Johns, South Africa. South Africa has a high number of shark attacks along with a high fatality rate of 27 percent. As of June 28, 1992, Recife in Brazil began officially registering shark attacks on its beaches ( mainly on the beach of Boa Viagem ). Over more than two decades, 62 victims were attacked, of which 24 died. The last deadly attack occurred on July 22, 2013. The attacks were caused by the species bull shark and tiger shark. What shocks about the shark attacks in Recife is that so many of them are fatal - 21 of the 56, a death rate of about 37 %. This is much higher than the worldwide shark attack fatality rate, which is currently about 16 %, according to Florida State Museum of Natural History. The location with the most recorded shark attacks is New Smyrna Beach, Florida. Developed nations such as the United States, Australia and, to some extent, South Africa, facilitate more thorough documentation of shark attacks on humans than developing coastal nations. The increased use of technology has enabled Australia and the United States to record more data than other nations, which could somewhat bias the results recorded. In addition to this, individuals and institutions in South Africa, the US and Australia keep a file which is regularly updated by an entire research team, the International Shark Attack File, and the Australian Shark Attack File. The Florida Museum of Natural History compares these statistics with the much higher rate of deaths from other causes. For example, an average of more than 38 people die annually from lightning strikes in coastal states, while less than 1 person per year is killed by a shark in Florida. In the United States, even considering only people who go to beaches, a person 's chance of getting attacked by a shark is 1 in 11.5 million, and a person 's chance of getting killed by a shark is less than 1 in 264.1 million. However, in certain situations the risk of a shark attack are higher. For example, in the south west of West Australia the chances of a surfer having a fatal shark bite in winter / spring are 1 in 40,000 and for divers it is 1 in 16,000. In comparison to the risk of a serious or fatal cycling accident, this represents 3 times the risk for a surfer and 7 times the risk for a diver. Species involved in incidents A blacktip reef shark. In rare circumstances such as bad visibility, blacktips may bite humans, mistaking them for prey. Under normal conditions, however, they are harmless and often even quite shy. Only a few types of sharks are dangerous to humans. Out of more than 480 shark species, only three are responsible for two - digit numbers of fatal unprovoked attacks on humans : the great white, tiger and bull ; however, the oceanic whitetip has probably killed many more castaways which have not been recorded in the statistics. These sharks, being large, powerful predators, may sometimes attack and kill people ; however, they have all been filmed in open water by unprotected divers. The 2010 French film Oceans shows footage of humans swimming next to sharks in the ocean. It is possible that the sharks are able to sense the presence of unnatural elements on or about the divers, such as polyurethane diving suits and air tanks, which may lead them to accept temporary outsiders as more of a curiosity than prey. Uncostumed humans, however, such as those surfboarding, light snorkeling or swimming, present a much greater area of exposed skin surface to sharks. In addition, the presence of even small traces of blood, recent minor abrasions, cuts, scrapes or bruises, may lead sharks to attack a human in their environment. Sharks seek out prey through electroreception, sensing the electric fields that are generated by all animals due to the activity of their nerves and muscles. Most of the oceanic whitetip shark 's attacks have not been recorded, unlike the other three species mentioned above. Famed oceanographic researcher Jacques Cousteau described the oceanic whitetip as `` the most dangerous of all sharks ''. Watson and the Shark by J.S. Copley, based on the attack on Brook Watson in Havana Harbor in 1749 Modern - day statistics show the oceanic whitetip shark as seldom being involved in unprovoked attacks. However, there have been a number of attacks involving this species, particularly during World War I and World War II. The oceanic whitetip lives in the open sea and rarely shows up near coasts, where most recorded incidents occur. During the world wars, many ship and aircraft disasters happened in the open ocean, and because of its former abundance, the oceanic whitetip was often the first species on site when such a disaster happened. Infamous examples of oceanic whitetip attacks include the sinking of the Nova Scotia, a British steamship carrying 1,000 people that was torpedoed by a German submarine on November 18, 1942, near South Africa. Only 192 people survived, with many deaths attributed to the oceanic whitetip shark. The same species is believed to have been responsible for many of the 60 -- 80 or more shark casualties following the torpedoing of the USS Indianapolis on July 30, 1945. Signs warning of shark attacks at Boa Viagem Beach in Recife, Brazil Black December refers to at least nine shark attacks on humans, causing six deaths, that occurred along the coast of KwaZulu - Natal Province, South Africa, from December 18, 1957, to April 5, 1958. In addition to the four species responsible for a significant number of fatal attacks on humans, a number of other species have attacked humans without being provoked, and have on extremely rare occasions been responsible for a human death. This group includes the shortfin mako, hammerhead, Galapagos, gray reef, blacktip, lemon, silky shark and blue sharks. These sharks are also large, powerful predators which can be provoked simply by being in the water at the wrong time and place, but they are normally considered less dangerous to humans than the previous group. On the evening of 16 March 2009, a new addition was made to the list of sharks known to have attacked human beings. In a painful but not directly life - threatening incident, a long - distance swimmer crossing the Alenuihaha Channel between the islands of Hawai'i and Maui was attacked by a cookiecutter shark. The two bites, delivered about 15 seconds apart, were not immediately life - threatening. Types of attacks Shark attack indices use different criteria to determine if an attack was `` provoked '' or `` unprovoked. '' When considered from the shark 's point of view, attacks on humans who are perceived as a threat to the shark or a competitor to its food source are all `` provoked '' attacks. Neither the International Shark Attack File ( ISAF ) nor the Global Shark Attack File ( GSAF ) accord casualties of air / sea disasters `` provoked '' or `` unprovoked '' status ; these incidents are considered to be a separate category. Postmortem scavenging of human remains ( typically drowning victims ) are also not accorded `` provoked '' or `` unprovoked '' status. The GSAF categorizes scavenging bites on humans as `` questionable incidents. '' The most common criteria for determining `` provoked '' and `` unprovoked '' attacks are discussed below : The great white shark is the first of only four species of sharks that have been involved in a significant number of fatal unprovoked attacks on humans Provoked attack Provoked attacks occur when a human touches a shark, pokes it, teases it, spears, hooks or nets it, or otherwise aggravates / provokes the animal in a certain manner. Incidents that occur outside of a shark 's natural habitat, e.g., aquariums and research holding - pens, are considered provoked, as are all incidents involving captured sharks. Sometimes humans inadvertently `` provoke '' an attack, such as when a surfer accidentally hits a shark with a surf board. Unprovoked attack Unprovoked attacks are initiated by the shark -- they occur in a shark 's natural habitat on a live human and without human provocation. There are three subcategories of unprovoked attack : Hit - and - run attack -- Usually non-fatal, the shark bites and then leaves ; most victims do not see the shark. This is the most common type of attack and typically occurs in the surf zone or in murky water. Most hit - and - run attacks are believed to be the result of mistaken identity. Sneak attack -- The victim will not usually see the shark, and may sustain multiple deep bites. This kind of attack is predatory in nature and is often carried out with the intention of consuming the victim. It is extraordinarily rare for this to occur. Bump - and - bite attack -- The shark circles and bumps the victim before biting. Great whites are known to do this on occasion, referred to as a `` test bite '', in which the great white is attempting to identify what is being bitten. Repeated bites are not uncommon, depending on the reaction of the victim ( thrashing or panicking may lead the shark to believe the victim is prey ), and can be severe or fatal. Bump - and - bite attacks are not believed to be the result of mistaken identity. An incident occurred in 2011 when a 3 - meter long great white shark jumped onto a 7 - person research vessel off Seal Island, South Africa. The crew were undertaking a population study using sardines as bait, and the incident was judged to be an accident. Reasons for attacks The tiger shark is second in number of unprovoked attacks on humans. Large sharks species are apex predators in their environment, and thus have little fear of any creature ( other than orcas ) with which they cross paths. Like most sophisticated hunters, they are curious when they encounter something unusual in their territories. Lacking any limbs with sensitive digits such as hands or feet, the only way they can explore an object or organism is to bite it ; these bites are known as test bites. Generally, shark bites are exploratory, and the animal will swim away after one bite. For example, exploratory bites on surfers are thought to be caused by the shark mistaking the surfer and surfboard for the shape of prey. Nonetheless, a single bite can grievously injure a human if the animal involved is a powerful predator such as a great white or tiger shark. Feeding is not the reason sharks attack humans. In fact, humans do not provide enough high - fat meat for sharks, which need a lot of energy to power their large, muscular bodies. A shark will normally make one swift attack and then retreat to wait for the victim to die or weaken from shock and blood loss, before returning to feed. This protects the shark from injury from a wounded and aggressive target ; however, it also allows humans time to get out of the water and survive. Shark attacks may also occur due to territorial reasons or as dominance over another shark species, resulting in an attack. Sharks are equipped with sensory organs called the Ampullae of Lorenzini that detect the electricity generated by muscle movement. The shark 's electrical receptors, which pick up movement, detect signals like those emitted from fish wounded, for example, by someone who is spearfishing, leading the shark to attack the person by mistake. George H. Burgess, director of the International Shark Attack File, said the following regarding why people are attacked : `` Attacks are basically an odds game based on how many hours you are in the water ''. The bull shark is the third in statistics of unprovoked attacks on humans. They are found in freshwater rivers and lakes as well as the ocean. Prevention Main article : Shark attack prevention Shark nets Main article : Shark net In Australia and South Africa shark nets are used to reduce the risk of shark attack. Since 1936 sharks nets have been utilised off Sydney beaches. Nowadays they are employed on both NSW and Queensland beaches ; 83 beaches are meshed in Queensland compared with NSW 's current 51. Since 1952 numerous beaches in South Africa are protected by the KwaZulu - Natal Sharks Board. Shark nets do not offer complete protection but work on the principle of `` fewer sharks, fewer attacks ''. They reduce occurrence via shark mortality. Reducing the local shark populations is believed to reduce the chance of an attack. Historical shark attack figures suggest that the use of shark nets and drumlines does markedly reduce the incidence of shark attack when implemented on a regular and consistent basis. The downside with shark nets is that they do result in bycatch, including threatened and endangered species. Drumlines Main article : Drum lines A drum line is an unmanned aquatic trap used to lure and capture large sharks using baited hooks. They are typically deployed near popular swimming beaches with the intention of reducing the number of sharks in the vicinity and therefore the probability of shark attack. Drum lines were first deployed to protect users of the marine environment from sharks in Queensland, Australia in 1962. During this time, they were just as successful in reducing the frequency of shark attacks as the shark nets More recently, drumlines have also been used with great success in Recife, Brazil where the number of attacks has been shown to have reduced by 97 % when the drumlines are deployed. While shark nets and drum lines share the same purpose, drum lines are more effective at targeting the three sharks that are considered most dangerous to swimmers : the bull shark, tiger shark and great white shark. Other protection methods The oceanic whitetip has made many attacks on survivors of shipwrecks or downed aircraft ; these are difficult to confirm and are rarely included in shark attack indices. Beach patrols and spotter aircraft are commonly used to protect popular swimming beaches. However aerial patrols have limited effectiveness in reducing shark attacks. Other methods include shark tagging efforts and associated tracking and notification systems, capture and translocation of sharks to offshore waters, research into shark feeding and foraging behaviour, public shark threat education programs and encouraging higher risk user groups ( surfers, spear - fishers and divers ) to use personal shark protection technology. Media impact The Jersey Shore shark attacks of 1916 killed 4 people in the first 2 weeks of July 1916 along the New Jersey shore and Matawan Creek in New Jersey. They are generally credited as the beginning of media attention on shark attacks in the United States of America. In 2010 nine Australian survivors of shark attacks banded together to promote a more positive view of sharks. The survivors made particular note of the role of the media in distorting the fear of sharks. Films such as Jaws were the cause of large - scale hunting and killing of thousands of sharks. Jaws had a significant impact on people and gave them an unrealistic view of sharks, causing them to fear them more than they probably should. The media has continued to exploit this fear over the years by sensationalizing attacks and portraying sharks as vicious man - eaters. There are some television shows, such as the famous Shark Week, that are dedicated to the preservation of these animals. They are able to prove through scientific studies that sharks are not interested in attacking humans and generally mistake humans as prey. List of notable victims George Coulthard ( 1856 -- 1883 ), Australian cricketer and Australian rules footballer Rodney Fox ( 1940 -- ), Australian filmmaker and conservationist Bethany Hamilton ( 1990 -- ), American surfer Brook Watson ( 1735 -- 1807 ), British soldier and mayor See also Attack sprees Jersey Shore shark attacks of 1916 Black December 2010 Sharm el - Sheikh shark attacks Regions Red Triangle ( Pacific Ocean ) Shark attacks in South Australia List of fatal shark attacks in Australia List of fatal, unprovoked shark attacks in the United States List of shark attacks in South Africa Lists of fatal shark attacks in South Africa List of fatal shark attacks in California Other Shark Arm case Shark repellent Summer of the Shark Shark net Drum lines Western Australian shark cull Shark attack prevention References Jump up ^ `` Yearly Worldwide Shark Attack Summary ''. International Shark Attack File. Florida Museum of Natural History, University of Florida. 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London : Guardian Media Group. Retrieved 20 July 2011. Marine researchers in South Africa had a narrow escape after a three - metre - long great white shark breached the surface of the sea and leaped into their boat, becoming trapped on deck for more than an hour. (... ) Enrico Gennari, an expert on great white sharks, (... ) said it was almost certainly an accident rather than an attack on the boat. Jump up ^ `` Apex Predators Program ''. Na.nefsc.noaa.gov. Retrieved 23 September 2010. Jump up ^ Turner, Pamela S. ( Oct -- Nov 2004 ). `` Showdown at Sea : What happens when great white sharks go fin - to - fin with killer whales ? ''. National Wildlife. National Wildlife Federation. 42 ( 6 ). Retrieved 21 August 2012. ^ Jump up to : `` What To Expect On Your Great White Shark Diving Tour ''. Romow.com. 7 August 2009. Retrieved 23 September 2010. ^ Jump up to : Grabianowski, Ed. `` HowStuffWorks `` How Shark Attacks Work '' ``. Adventure.howstuffworks.com. Retrieved 23 September 2010. Jump up ^ Grabianowski, Ed. `` HowStuffWorks `` Shark Attack Damage '' ``. Adventure.howstuffworks.com. Retrieved 23 September 2010. Jump up ^ `` Great White Shark ''. Extremescience.com. Retrieved 23 September 2010. ^ Jump up to : Grabianowski, Ed. `` HowStuffWorks `` Shark Sensory System '' ``. Adventure.howstuffworks.com. Retrieved 23 September 2010. Jump up ^ `` Ampullae of Lorenzini ''. Marinebiodiversity.ca. Retrieved 23 September 2010. Jump up ^ `` Shark attacks at record high ''. BBC News. 9 February 2001. Retrieved 6 April 2010. Jump up ^ Curtis, Tobey. `` Bull shark ''. Florida Museum of Natural History, University of Florida. Retrieved 26 June 2012. ^ Jump up to : Carroll Nick. `` Nick Carroll On - Beyond the Panic, The Facts about Shark Nets ''. Coastal Watch. Retrieved 22 November 2016. Jump up ^ Media, Australian Community Media -- Fairfax ( 8 November 2016 ). `` Beyond the panic : the facts about shark nets ''. Retrieved 22 April 2017. 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( link ) Jump up ^ Thousands protest over shark cull in Australia, UK : The Telegraph, 1 February 2014, retrieved 5 January 2017 Jump up ^ Open letter to WA Government re : Proposal to use drum lines for shark population control and targeting of sharks entering protected beach ( PDF ), Support Our Sharks, 2013, retrieved 5 January 2017 Jump up ^ McCall, Matt ; 02, National Geographic PUBLISHED July. `` 2 Weeks, 4 Deaths, and the Beginning of America 's Fear of Sharks ''. National Geographic News. Retrieved 2015 - 07 - 28. Jump up ^ attack survivors unite to save sharks, Australian Geographic, 14 September 2010 Jump up ^ Choi, Charles Q. `` How ' Jaws ' Forever Changed Our View of Great White Sharks ''. Web. Live Science. Retrieved 29 August 2013. Jump up ^ Beryl, Francis, ( 2011 ). `` Before and after Jaws : Changing representations of shark attacks ''. researchrepository.murdoch.edu.au. Retrieved 2017 - 12 - 06. Jump up ^ `` Shark Week : Discovery Channel ''. Dsc.discovery.com. 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Question: where do the most shark attacks occur in the world
Answer: United States