Hurricane Katrina, which hit Florida, Louisiana, and Mississippi in 2005, was the deadliest hurricane recorded in mainland United States since 1951. It had a death toll of nearly ***** fatalities. Meanwhile, hurricane Helene, which hit the Southeastern United States in September 2024, was the second deadliest to make landfall in the continental U.S. this century.

In 2021, there were 68 fatalities due to hurricanes reported in the United States. Since the beginning of the century, the highest number of fatalities was recorded in 2005, when four major hurricanes – including Hurricane Katrina – resulted in 1,518 deaths.

The worst hurricanes in U.S. history
Hurricane Katrina, which made landfall in August 2005, ranked as the third deadliest hurricane in the U.S. since records began. Affecting mainly the city of New Orleans and its surroundings, the category 3 hurricane caused an estimated 1,500 fatalities. Katrina was also the costliest tropical cyclone to hit the U.S. in the past seven decades, with damages amounting to roughly 186 billion U.S. dollars. Hurricanes Harvey and Maria, both of which made landfall in 2017, ranked second and third, resulting in damage costs of 149 and 107 billion dollars, respectively.

How are hurricanes classified?
According to the Saffir-Simpson scale, hurricanes can be classified into five categories, depending on their maximum sustained wind speed. Most of the hurricanes that have made landfall in the U.S. since 1851 are category 1, the mildest of the five. Hurricanes rated category 3 or above are considered major hurricanes and can cause devastating damage. In 2021, there were 38 hurricanes recorded across the globe, of which 17 were major hurricanes.

In 2024, there were ** hurricanes registered worldwide, up from ** hurricanes a year earlier. This was nevertheless below the average of ** hurricanes per year registered from 1990 to 2022. The years of 1992 and 2018 tied as the most active in the indicated period, each with ** hurricanes recorded. The Pacific Northwest basin recorded the largest number of hurricanes in 2024. Most exposed countries to hurricanes With the Pacific Northwest basin being one of the most active for hurricanes in the world, there is perhaps no surprise that Japan and the Philippines were two of the countries most exposed to tropical cyclones in 2024, both West Pacific nations. Meanwhile, the Dominican Republic was the most exposed country in the Atlantic Ocean and ranked first as the most exposed country worldwide during the same year. Effects of tropical cyclones From 1970 to 2019, almost ******* deaths due to tropical cyclones have been reported worldwide. In the past decade, the number of such casualties stood at some ******, the lowest decadal figure in the last half-century. In contrast to the lower number of deaths, economic losses caused by tropical cyclones have continuously grown since 1970, reaching a record high of more than *** billion U.S. dollars from 2010 to 2019.

The category 4 hurricane that made landfall in Galveston, Texas in 1900 was the deadliest to hit the United States, with a death toll estimated between 8,000 and 12,000. Since 1970, only one U.S. hurricane &#8211 namely Katrina, which hit in 2005 &#8211 made the ranking, with about 1,200 deaths.

During the start of the current decade, the number of reported deaths due to tropical cyclones worldwide amounted to 2,670. The 10-year period with the highest recorded figures was between 2000 and 2009, where 167,300 deaths were reported due to tropical cyclones. Since 1970, almost 800 thousand deaths due to cyclones have been registered across the globe. Meanwhile, the number of tropical cyclones globally has increased continuously in the past half a century.

The list of hurricanes along with the category, and associated death and damage information.

Dataset of tweets about Hurricane Sandy which was the most destructive hurricane in United States history with more than 230 deaths and 75 billion of damages. This dataset were collected from 29th October 2012 to 31st October 2012 using the 3 keywords: “sandy”, “hurricane” and “storm”.This is a cleaned version of the former dataset (sandy_full) in which we filtered through a classification algorithm non-topically related tweets as explained in our paper.In accordance with Twitter's Terms of Service, we only provide identifiers of tweets. In order to "hydrate" those tweet identifiers, or in other words, to collect the actual tweets, you could use our Tweeset tool.https://bitbucket.org/amjedbj/tweeset.If you would like to use this dataset, please cite our paper:Lynda Tamine, Laure Soulier, Lamjed Ben Jabeur, Frederic Amblard, Chihab Hanachi, Gilles Hubert, and Camille Roth. 2016. Social Media-Based Collaborative Information Access: Analysis of Online Crisis-Related Twitter Conversations. In Proceedings of the 27th ACM Conference on Hypertext and Social Media (HT '16). ACM, New York, NY, USA, 159-168. DOI: http://dx.doi.org/10.1145/2914586.2914589

The United States experienced a significant surge in tornado activity in 2024, with 1,910 reported across the country. This marked a substantial increase from previous years, highlighting the unpredictable nature of these violent atmospheric phenomena. Fatalities and economic impact While tornado frequency increased, the death toll from such events remained relatively low compared to historical peaks. In 2023, 86 fatalities were reported due to tornadoes, a notable increase from the 23 deaths in 2022 but far below the 553 lives lost in 2011. Moreover, the economic impact of these storms was substantial, with tornado damage in 2023 amounting to approximately 1.38 billion U.S. dollars, nearly doubling from the previous year. However, this pales in comparison to the record-setting damage of 9.5 billion U.S. dollars in 2011. Comparison to other extreme weather events While tornadoes pose significant risks, hurricanes have historically caused more extensive damage and loss of life in the United States. Hurricane Katrina in 2005 remains the costliest tropical cyclone in recent decades, with damages totaling 200 billion U.S. dollars when adjusted to 2024 values. The impact of such extreme weather events extends beyond immediate destruction, as evidenced by the 1,518 hurricane-related fatalities recorded in 2005. As climate change continues to influence weather patterns, both tornado and hurricane activity may see further shifts in frequency and intensity in the years to come.

Extreme heat was the deadliest weather condition in the United States in 2023, resulting in a total of 207 lives lost that year. This was followed by fire weather, having caused 103 fatalities. On the other side of the spectrum, only one life was lost due to ice in the North American country that year.

A complete list of the models.

The statistic shows the leading causes of deaths due to tropical cyclones in the United States from 1963 to 2012. Total 8 percent of victims died because of wind effects during tropical cyclones.

Since 2000, hurricanes were the natural disasters with the highest estimated economic losses in the Caribbean. Hurricane Ian, which affected several islands in the Caribbean (especially Cuba) and the southeast of the United States (specially Florida and the Carolinas) in September of 2022, caused overall losses for approximately 100 billion U.S. dollars. Hurricane Maria in 2017 ranked second, with an economic impact estimated at 68.6 billion U.S. dollars, in this case including Puerto Rico, the U.S. Virgin Islands, Dominica, Guadeloupe, the Dominican Republic, Martinique, and Haiti.

The aftermath of Hurricane Dorian

The Bahamas was the country most severely affected by Hurricane Dorian, which hit in late August 2019, lasting until September 9. This storm, a category 5 hurricane, claimed a total of 65 lives and was labelled the worst cyclone and natural disaster to ever occur in the Bahamas. That year, this island nation received the highest extreme climate risk score in the whole Latin American and Caribbean region.

The death toll of natural disasters in the Caribbean

The magnitude 7.2 earthquake that struck Haiti on August 2021 has been the deadliest natural disaster in Latin America and the Caribbean from 2018 to 2022, estimated to have killed 2,248 people. Regarding tropical cyclones, hurricane Eta in 2020 has been the deadliest in the region during the same period with approximately 183 victims.

There were a total of 1,033 fatalities reported due to heat waves, wildfires, and drought in the United States in 2024. In total, there were about 1,576 fatalities due to severe natural disasters in the United States that year.

In 2024, there were roughly 18,100 reported fatalities caused by natural disaster events worldwide. This was well below the 21st-century average and significantly lower than the fatalities recorded in 2023, which were driven by the earthquakes that hit Turkey and Syria on February and became the deadliest catastrophes in 2023, with nearly 60,000 reported deaths. Economic losses due to natural disasters The economic losses due to natural disaster events worldwide amounted to about 368 billion U.S. dollars in 2024. Although figures in recent years have remained mostly stable, 2011 remains the costliest year to date. Among the different types of natural disaster events, tropical cyclones caused the largest economic losses across the globe in 2024. What does a natural disaster cost? Hurricane Katrina has been one of the costliest disasters in the world, costing the insurance industry some 102 billion U.S. dollars. The resilience of societies against catastrophes have been boosted by insurance industry payouts. Nevertheless, insurance payouts are primarily garnered by industrialized countries. In emerging and developing regions, disaster insurance coverage is still limited, despite the need for improved risk management and resilience as a method to mitigate the impact of disasters and to promote sustainable growth.

From 1950 to 2024, the cyclone Bhola that hit Bangladesh in 1970 was the deadliest natural disaster in the world. The exact death toll is impossible to calculate, but it is estimated that over 300,000 lives were lost as a result of the cyclone. The Tangshan earthquake in China in 1976 is estimated to have caused the second-highest number of fatalities. The Haiti earthquake The fifth-deadliest natural disaster during this period was the earthquake in Haiti in 2010. However, death tolls vary between 100,000 and 316,000, meaning that some estimates make it the deadliest natural disaster in the world since 1950, and the deadliest earthquake since 1900. Sixty percent of the country’s hospitals and eighty percent of the country’s schools were destroyed. It was the worst earthquake to hit the Caribbean in 200 years, with a magnitude of 7.0 at its epicenter only 25 kilometers away from Haiti’s capital, Port-au-Prince. Poor construction practices were to blame for many of the deaths; Haiti’s buildings were not earthquake resistant and were not built according to building code due to a lack of licensed building professionals. High population density was also to blame for the high number of fatalities. One fourth of the country’s inhabitants lived in the Port-au-Prince area, meaning half of the country’s population was directly affected by the earthquake. Increasing extreme weather As global warming continues to accelerate climate change, it is estimated that natural catastrophes such as cyclones, rainfalls, landslides, and heat waves will intensify in the coming years and decades. For instance, the economic losses caused by natural disasters worldwide increased since 2015. Moreover, it is expected that countries in the Global South will be affected the most by climate change in the coming years, and many of these are already feeling the impact of climate change.

The total costs of Hurricane Katrina amounted to 125 billion U.S. dollars at the time the disaster occurred in 2005. While this is around the same total cost of Hurricane Harvey, when adjusted for inflation the former is more expensive, with the cost being the equivalent of 194 billion U.S. dollars in 2023 (compared to 155 billion U.S. dollars for Hurricane Harvey).

Hurricane Katrina Hurricane Katrina struck Louisiana on August 9, 2005 and displaced hundreds of thousands of people from their homes in Louisiana, Mississippi and Alabama. The death toll reached almost 2,000 people. Katrina was also the most expensive U.S. catastrophe since 1992 in terms of property loss.

Harvey, Maria and Irma Katrina was responsible for the spike in insured losses caused by natural disasters globally in 2005. Harvey, Maria and Irma also made quite the impact in 2017 when they hit central America and then made land on the U.S. Gulf Coast. The frequency and intensity of such natural disasters are increasing.

This statistic shows the number of earthquakes in the United States from 2000 to 2012. 2,342 earthquakes were recorded in the United States in the year 2000.

In 2023, there was a global protection gap of *** U.S. dollars for natural disasters worldwide. The estimated economic loss of natural disasters worldwide was *** billion U.S. dollars, while the estimated insured loss amounted to *** billion U.S. dollars.Where did the most costly natural disaster occur?Natural disasters are extreme, sudden catastrophes that are caused by natural processes by the earth. Different types of natural disasters include floods, hurricanes, tornadoes, earthquakes, and tsunamis. There are many consequences that occur as a result of natural disasters, which include death, economic and infrastructural damage, and public health issues. The 2011 earthquake and tsunami that happened in Japan caused the most economic damage worldwide in the past four decades. Most costly disasters for insurersThe impact of natural disasters on insurance companies varies depends on the prevalence of insurance coverage in the affected region. Generally, losses from natural disasters that occur in wealthy countries such as the United States include a greater percentage of insured losses than disasters that occur in lower income countries. 2017 remains the worst year for insured property losses in the United States due to several major hurricanes in the U.S. and the Caribbean. Domestically, Hurricane Katrina was the most expensive natural disaster of all time.

In 2023, there was a total of *** natural disasters events recorded worldwide, down from *** recorded a year earlier. The Europe, Middle East and Africa region experienced the highest number of natural disasters that year. Deaths and costs of natural disasters Natural disasters affect almost every part of the world. In February 2023, Turkey and Syria were hit by earthquakes that resulted in the highest number of deaths due to natural disaster events that year. In terms of economic damage, Hurricane Katrina remains one of the most expensive natural disasters in the world, topped only by the earthquake/tsunami which hit Japan in 2011. Climate change and natural disasters Climate change has influenced the prevalence of natural disasters. Global warming can increase the risk of extreme weather, resulting in higher risk of droughts and stronger storms, such as tropical cyclones. For instance, higher levels of water vapor in the atmosphere give storms the power to emerge. Furthermore, the heat in the atmosphere and high ocean surface temperatures lead to increased wind speeds, which characterize tropical storms. Areas that are usually unaffected by the sea are becoming more vulnerable due to rising sea levels as waves and currents become stronger.

In 2024, *** typhoons landed in Japan. Figures peaked in 2016, with *** typhoons. Typhoons mostly hit Japan between July and October, during the peak of the typhoon season. Natural disasters in Japan Natural disasters occur frequently in Japan. Since the archipelago is situated along the Ring of Fire, an area where several tectonic plates meet, the country is vulnerable to natural disasters such as earthquakes, tsunamis, and volcanic eruptions. The highest cost of damage caused by natural disasters was recorded in 2011, when the Great East Japan Earthquake, also known as Tohoku Earthquake, occurred. It was the most powerful earthquake ever recorded in Japan. Both the earthquake and the following tsunami destroyed many Japanese cities and led to the death of over 15 thousand people. Furthermore, it caused a meltdown at three reactors in the Fukushima Daiichi Nuclear Power Plant in Fukushima Prefecture. Typhoons in Japan Typhoons develop over the Pacific Ocean and are likely to approach the archipelago. Therefore, Japan's southernmost prefecture Okinawa gets hit regularly by typhoons, while the northernmost prefecture Hokkaido is the least affected area. Japanese people stated wind gusts and tornadoes as well as flooding as their leading fears regarding typhoons. The tropical cyclones often cause heavy rains and floods, resulting in a high amount of damage caused by floods every year. Since the number of typhoons has increased in recent years, the damage caused by floods grew as well.