Buzz
This compilation showcases 10 of the most catastrophic disasters in history, all of which were the direct result of human actions. Please be advised that incidents stemming from acts of war are not included, as they would dominate the entire list. To maintain variety and keep the content engaging, I've deliberately chosen a mix of different types of calamities, steering clear of focusing solely on a specific category like mining accidents. If you think something important is missing, it’s likely because I’ve already encountered it in other lists and aimed for a more original selection. During my research, I found countless lesser-known disasters that I had never heard of, so depending on the reception of this list, a follow-up article might be in the works.
10. Tenerife Airport Disaster
The deadliest aviation disaster in history occurred on March 27, 1977, at 5:07pm. It was triggered by a bomb explosion at Gran Canaria Airport, which led to several flights being diverted to Tenerife North Airport, Los Rodeos. Among the diverted flights were KLM Flight 4805 and Pan Am Flight 1736, both Boeing 747s. This sudden increase in air traffic led to congestion, forcing many planes to park on the taxiway, complicating the situation. Despite this, it could have been manageable, but dense fog reduced visibility to almost zero. Both aircraft taxied onto the same runway, but neither could see the other due to the fog. The control tower cleared the KLM flight with departure instructions but did not give a clear takeoff clearance. The co-pilot of the KLM flight announced, 'We’re now at take-off,' which the tower misinterpreted as a statement that the aircraft was positioned for takeoff, not actually starting it.
It seems the KLM flight crew thought they were initiating takeoff, while the control tower assumed they were just in position, awaiting the final go-ahead. The tower responded with, 'Stand by for take-off, I will call you.' At the same time, the Pan Am crew informed the tower that they were still on the runway, but due to communication interference, the messages weren’t received properly. As the KLM plane accelerated for takeoff, both crews finally saw each other. The Pan Am captain applied full thrust and attempted a sharp turn onto the fourth exit. The KLM captain, in turn, tried a steep climb, but the aircraft scraped its tail along the runway for 65 feet. Though it eventually lifted off, it collided with the upper fuselage of the Pan Am plane, tearing it apart. The KLM plane stalled, crashed 500 feet further, and slid another 1,000 feet. The collision resulted in 583 fatalities, including all 248 people aboard the KLM flight and 335 of the 396 passengers and crew on the Pan Am flight.
Fatalities – 583
9. Benxihu Colliery Explosion
Situated in Liaoning, China, the Benxihu iron and coal mine was a dangerous and unforgiving place to work, even under the best of circumstances. During the Second World War, Japanese forces occupied Liaoning and took control of the colliery, subjecting miners to inhumane conditions. They endured frequent beatings, food shortages, and rampant diseases like Typhoid and Cholera.
On April 26, 1942, a gas buildup caused a catastrophic explosion in one of the mine’s shafts, sending enormous flames billowing from the entrance. The Japanese authorities locked down the site, preventing anyone from offering aid, and set up electric fences around the perimeter. Over the following 10 days, workers cleared the shaft and carried the bodies of the deceased to mass graves. Many of the victims were unrecognizable due to the severe burns from the explosion, but most had perished from carbon monoxide poisoning, which resulted from a lack of proper ventilation after the initial blast. The Japanese authorities remained silent about the disaster, initially reporting only 34 deaths. Later investigations, including one conducted by the Soviet Union, estimated the death toll to be around 1,549, with 31 of them being Japanese nationals, making up one-third of the workforce.
Fatalities – 1,549
8. Halifax Explosion
On December 6, 1917, the world witnessed the largest accidental man-made explosion in history, which occurred in ‘The Narrows’ of Halifax Harbour. The disaster began when the Norwegian vessel Imo, attempting to navigate out of the channel, collided with the Mont-Blanc, a French cargo ship loaded with 2,300 tons of wet and dry picric acid, 200 tons of TNT, 10 tons of gun cotton, and 35 tons of benzoyl, a highly volatile mix. The collision took place at 8:44am, when both ships made a series of poorly executed maneuvers. The friction caused by the massive steel ships rubbing against each other ignited the benzene aboard the Mont-Blanc, sparking a fire. The 40-man crew of the Mont-Blanc, unable to control the flames, abandoned ship. Hundreds of people gathered on the shore to watch the blazing vessel drift toward the shore. When the Mont-Blanc grounded, it ignited munitions on the pier, and within 20 minutes of the initial crash, the ship exploded with the force of 3 kilotons (one-fifth of the atomic bomb dropped on Hiroshima). The explosion sent a fireball soaring nearly 2 km into the air, scattering molten metal for miles around. A tsunami, 18 meters high, struck the shore, sweeping spectators into the water. The devastation was massive—churches, homes, schools, factories, docks, and ships were obliterated. People going about their daily routines—children on their way to school, workers in factories, families in their homes, sailors on ships—perished instantly. Injuries were horrendous, and many suffered blindness from shattered glass, adding to the shock and confusion.
The shockwaves from the explosion caused stoves, lamps, and fires to topple, spreading flames throughout the area and trapping survivors inside their homes. A staggering 326 acres of land were completely destroyed. Buildings were damaged as far as 16 kilometers away, and the blast could be heard up to 316 kilometers away. Large metal fragments, some weighing more than a ton, were thrown as far as 4 kilometers from the Mont-Blanc. The initial explosion and the subsequent tsunami claimed the lives of 1,600 people, with an additional 9,000 sustaining injuries. 1,630 homes were completely destroyed, and 12,000 more were damaged. The final death toll was officially recorded at 1,950. Remarkably, all but one member of the Mont-Blanc crew survived the disaster.
Fatalities – 1,950
7. Church of the Company Fire
The deadliest fire disaster in history took place in Santiago, Chile on December 8, 1863. The Church of the Company of Jesus was hosting a celebration for the Feast of the Immaculate Conception when a gas lamp ignited a draped veil on the wall. A well-intentioned bystander rushed to help by using another cloth to smother the fire, but this action only spread the flames to the wooden roof. Tragically, the church doors, which opened inward, had been closed to allow the maximum number of people to attend, and in the ensuing panic, the worshippers could not escape. As people surged toward the exits, the doors could not be opened, and a wall of bodies began to accumulate in front of them, blocking the way to safety. Three hours after the fire began, the roof caved in, killing the remaining survivors. Between 2,000 and 3,000 people perished, most of them women, and entire families were wiped out. The damage to the bodies was so severe that most could not be identified and were buried in mass graves. It took ten days to remove all the bodies from the church. In the aftermath of the tragedy, volunteer fire brigades were established in Chile, and they continue to operate to this day.
Fatalities – 2,000-3,000
6. MV Dona Paz
While the sinking of the Titanic is often the first disaster that comes to mind when people think of shipwrecks, it is not the deadliest of all time. In fact, it ranks fifth in terms of fatalities. The MV Dona Paz holds the tragic title of the deadliest ferry disaster in history. On December 20, 1987, the ferry, which was en route from Tacloban to Manila in the Philippines, was carrying its official passenger load of 1,583 passengers and 58 crew members, a number that was already at maximum capacity.
The Dona Paz collided with the MT Vector, an oil tanker loaded with 8,800 barrels of gasoline. According to survivors, the weather was clear, but the seas were rough. After the collision, the tanker erupted into flames, quickly spreading across both vessels. The Dona Paz's lights went out, and without life jackets available (or locked away), passengers were left to leap into the shark-infested waters below. Authorities were unaware of the disaster for eight hours, and it took another eight hours to organize a rescue operation. Only 26 people survived the catastrophe, including two members of the Vector's crew.
Though official records listed 1,583 passengers aboard, testimonies from survivors and anonymous officials suggest the ship was actually carrying between 3,000 and 4,000 people. Many passengers were crammed into the ship's corridors, sleeping in cots with as many as four people in a single cot. Only one of the 21 bodies recovered after the accident was found on the manifest. Around 2,000 people were reported missing by friends and family, and it is believed that these individuals were among the unaccounted-for passengers who were not listed on the ship's official records.
The official death toll stands at 1,749, but a more accurate estimate, which is recognized by the World Almanac as the deadliest peacetime maritime disaster of the 20th century, reports a staggering 4,341 fatalities.
Fatalities – 1,749-4,341
5. Bombing of Chongqing
Throughout World War II, the Japanese Army and Navy carried out 5,000 bombing raids on the Chinese city of Chongqing, dropping a total of 11,500 bombs. Unlike modern-day bombing missions focused on military targets, these attacks were designed as acts of terror, aimed at civilian areas including residential neighborhoods, hospitals, and schools. During one particularly intense bombing raid on June 5, 1941, thousands of residents sought refuge in bomb shelters. The raid, which lasted for over three hours, led to overcrowding in the shelters, resulting in the suffocation of between 2,500 and 4,000 people as they waited for the bombings to cease. In memory of the victims, a museum has been established near the entrance to one of the tunnels, and every year on June 5, an air raid siren is sounded to commemorate the tragedy. It is important to note that the deaths were not a direct result of the bombing itself, but rather the suffocation in the shelters.
Fatalities – 2,500-4,000
4. The Great Smog
London's air has been a battleground with pollution ever since the Industrial Revolution, earning the nickname ‘Pea Soupers’ due to the greenish haze that sometimes enveloped the city. Among the most severe of these pollution events was the infamous Great Smog of 1952, also referred to as ‘The Big Smoke.’ This smog persisted for five days in early December, caused by a particularly cold winter that forced people to burn more coal. This coal produced much higher levels of Sulphur Dioxide than what is used today. The coal fumes mixed with the exhaust from new diesel cars, and the effects of northwesterly winds brought additional pollution from Europe, resulting in a dense fog that crept into homes and streets alike, creating a choking haze that resembled the eerie atmosphere in Stephen King's novel ‘The Mist.’ The public's health suffered significantly, and respiratory problems became widespread. The tragedy led to the Clean Air Act of 1956 and is remembered as one of the most catastrophic pollution events in history. It is estimated that around 4,000 people died in the weeks following the smog, with an additional 100,000 becoming ill. More recent studies suggest the death toll could be as high as 12,000.
Fatalities – 4,000-12,000
3. Banqiao Dam Collapse
The Banqiao Dam, completed in 1952, was built to manage flooding in the Huai River Basin, located in Henan province, China, and it provided 18GW of power to the surrounding region. Despite its strength, cracks soon appeared in the structure. Under the guidance of Soviet engineers, repairs were made, and the dam was then deemed indestructible, earning the nickname ‘The Iron Dam.’
The dam was originally designed to withstand 300mm of rainfall per day, a rare occurrence estimated to happen only once every 1000 years. However, in August 1975, Typhoon Nina brought a staggering 1060mm of rainfall in just 24 hours, far surpassing the dam's design capacity. This unprecedented rainfall, combined with the damage caused by the typhoon to the region’s communication infrastructure, delayed the engineers' response to requests to release water from the dam. As smaller dams upstream began to fail, the water levels in the Banqiao Dam rose beyond the safety threshold, and it was only a matter of time before disaster struck. The floodgates of the Banqiao opened, unleashing 78,800 tons of water per second. When all 62 dams in the region failed, they released a combined total of 15.783 billion tons of water.
The resulting deluge created waves that were 10 kilometers wide and reached heights of up to 7 meters, traveling at speeds of 50 km/h. This massive surge wiped out 55 kilometers of land, flooding an area 15 kilometers wide. Entire landscapes were submerged, and new lakes spanning up to 12,000 square kilometers were formed. The overwhelming scale of the disaster meant that evacuation efforts were rendered ineffective, as the communication systems had already been crippled by the typhoon.
According to official reports from China, around 26,000 individuals died from the initial flooding, with up to 145,000 more losing their lives due to the resulting epidemics and famine. The disaster affected approximately 11 million people. The 2011 movie 'Dam999' was loosely based on this event.
Fatalities – 26,000-230,000
4. Queen of the Sea Rail Disaster
This incident is included as a bonus because, although it resulted from a natural disaster, it is recognized as the deadliest rail catastrophe in history. It occurred during the 2004 Boxing Day Tsunami. The disaster did not involve a train crash, but it is still responsible for the highest number of fatalities in rail history. When the tsunami struck the village of Peraliya in Sri Lanka, water surged around the stationary train. Passengers scrambled to climb atop the train to avoid drowning, while others hid behind it, hoping to shield themselves from the incoming waves. However, they were unaware that the first wave was small compared to the massive 18-foot wave that followed. The larger wave swept the train off its tracks, sending it rushing at incredible speed for 115 kilometers. Those who took refuge behind the train were crushed by trees and buildings, while passengers inside drowned, unable to escape due to the overcrowding. It took several hours before the missing train was noticed, and days before rescue teams arrived. Many survivors died in the aftermath. The estimated death toll was at least 1,700, and possibly more than 2,000, but only 900 bodies were officially recovered.
Fatalities – 1,700 – 2,000+
2. The Collapse of the Fidenae Amphitheatre
This tragic event is one of the earliest and most disastrous on the list, taking place in 27 AD in the ancient town of Fidenae near Rome, Italy. A local businessman, Atilius, constructed a wooden amphitheatre on a budget to commemorate the end of Emperor Tiberius's ban on gladiatorial games. The project was hurriedly completed to meet deadlines. The amphitheatre had a capacity of 50,000, and during its grand opening, it tragically collapsed, killing 20,000 bloodthirsty spectators. This disaster remains the deadliest in the history of stadium collapses and led the Roman Senate to introduce laws that only citizens with wealth exceeding 400,000 sesterces could host gladiatorial games, and all amphitheatres must be built on solid foundations. Atilius was subsequently exiled from the Empire.
Fatalities – 20,000
1. The Bhopal Disaster
On the 2nd and 3rd of December 1984, a catastrophic chemical leak occurred at the Union Carbide pesticide plant in Bhopal, India, releasing Methyl Isocyanate (MIC). The disaster was triggered by water entering a tank containing about 42 tons of MIC, which caused a chemical reaction that increased the temperature to over 200°C and led to a dangerous rise in pressure. The tank eventually vented the toxic gas, which was carried by the northwesterly winds across Bhopal.
The initial exposure to MIC caused symptoms like coughing, vomiting, eye irritation, and a feeling of suffocation. Panic spread throughout the city as locals, experiencing these symptoms, fled from the plant, unknowingly worsening their condition by increasing their breathing rate. Acute effects included severe irritation in the respiratory tract and eyes, breathlessness, and stomach pain. Many perished from suffocation and circulatory collapse. In total, 170,000 individuals were treated for MIC poisoning, while mass funerals were held, and bodies were disposed of in the Narmada River. Independent estimates report around 8,000 deaths immediately after the incident, with another 8,000 passing away later, while some sources suggest the number may reach 30,000. Between 100,000 and 200,000 others have suffered long-term health effects. To this day, the soil and groundwater within a 3km radius of the plant remain heavily contaminated with pesticides and toxic metals such as lead, mercury, arsenic, cadmium, and chromium, at levels up to 40 times higher than the Indian standards for safety.
Fatalities-16,000-30,000
++ Bradford City Stadium Fire
Although it doesn't quite compare in scale to the other events listed, I’ve included this as a personal mention since it's my local city. In 1985, the main stand of the Bradford City Football Club, located at Valley Parade, was made of wood and had not been updated in 74 years. The stand was set to be replaced after the final match of the season against Lincoln City on May 11, 1985, due to concerns over health and safety, specifically the accumulation of litter between the gaps in the structure which posed a fire hazard. Just before halftime, a fire broke out in the stand, and within minutes, the entire structure was engulfed in flames. A video exists that vividly shows how rapidly the fire spread. A man seen walking around on fire reportedly died from internal injuries sustained when fellow fans attempted to extinguish the flames. Tragically, 56 lives were lost, and 265 others were injured. It is suspected that the fire started when a fan dropped a cigarette or match between the gaps, igniting the litter below.
Fatalities – 56
