Mexico faces nearly every category of natural disaster on the planet, from powerful earthquakes and active volcanoes to hurricanes striking both coasts, severe droughts, deadly floods, and extreme heat waves. This unusual breadth stems from the country’s geography: it sits at the collision of major tectonic plates, stretches across tropical and arid climate zones, and is flanked by two ocean basins that generate tropical cyclones. Few countries deal with so many overlapping hazard types at once, and the interactions between them often compound the damage.
Earthquakes and the Subduction System Beneath Mexico
Mexico is one of the most seismically active countries in the Western Hemisphere. The primary engine is the Cocos tectonic plate, which dives beneath the North American plate along the Pacific coast at rates ranging from about 2.5 to over 7 centimeters per year. Seismic imaging of this subduction zone shows the Cocos plate dipping at roughly 15 to 20 degrees near the coast at Acapulco, then flattening out about 300 kilometers inland before plunging steeply at around 75 degrees beneath the Trans-Mexican Volcanic Belt.1Geochemistry, Geophysics, Geosystems. Seismic imaging of the Cocos plate subduction zone system in central Mexico That unusual flat-slab geometry means earthquake-generating stresses are spread over a wide area rather than concentrated along a narrow fault.
In the Guerrero region of southern Mexico, about 90 percent of the earthquakes occurring within the slab itself are confined to the sub-horizontal portion of the plate, at shallow to intermediate depths below 90 kilometers.2Tectonophysics. Intraslab seismicity and thermal stress in the subducted Cocos plate beneath central Mexico These “intraslab” quakes are especially dangerous because they can occur directly beneath densely populated areas like Mexico City, hundreds of kilometers from the coast. The catastrophic 1985 Mexico City earthquake, which killed thousands, and the two damaging earthquakes in September 2017 are all products of this subduction system. Mexico City’s vulnerability is amplified by its soft lake-bed soils, which trap and amplify seismic waves like a bowl of gelatin on a shaking table.
Active Volcanoes
The same subduction that causes earthquakes also feeds a chain of volcanoes stretching across central Mexico. The Trans-Mexican Volcanic Belt includes several dangerous stratovolcanoes, and two stand out for the risk they pose to large populations.
Popocatépetl, located about 70 kilometers southeast of Mexico City, is among the most closely monitored volcanoes in the world. Over the past several thousand years, it has produced at least four major Plinian eruptions, around 8,000, 5,000, 2,100, and 1,100 years ago, giving it a recurrence interval of less than 2,000 years for truly explosive events. The two most recent of those eruptions destroyed human settlements in the neighboring Basin of Puebla, burying pottery and other artifacts under pumice falls, ash flows, and lahars.3GeoScienceWorld. Volcanic hazards in the Mexico City metropolitan area from eruptions at Popocatépetl, Nevado de Toluca, and Jocotitlán stratovolcanoes and monogenetic scoria cones in the Sierra Chichinautzin Volcanic Field Today, more than 25 million people live within range of its ashfall, and the volcano has been intermittently active since 1994, regularly sending ash plumes into the sky and occasionally forcing evacuations of nearby communities.
Volcán de Colima, in western Mexico, is considered the country’s most active volcano. Its eruptive pattern over the past 400 years has followed a rough cycle of dome-building eruptions punctuated by a large Plinian explosion roughly every century, with the last major blast occurring in 1913.4Annals of Geophysics. The Ash-Fall Hazard from a Plinian Eruption at Colima Volcano, Mexico Current conditions at the volcano, where a lava dome again fills the crater, resemble those that preceded past explosive eruptions. Hazard zonation maps for Colima have been updated to account for debris avalanches, pyroclastic flows, lahars, and ashfall, all of which threaten nearby towns and agricultural areas.5Springer Nature. Re-assessing volcanic hazard zonation of Volcán de Colima, México
Hurricanes on Two Coasts
Mexico is one of very few countries regularly struck by tropical cyclones from two different ocean basins. Between 1863 and 2022, 386 tropical cyclones made landfall on Mexican coasts: 206 on the Pacific side and 180 on the Atlantic (including the Gulf of Mexico and Caribbean).6PLOS ONE. The challenges of climate change and human impacts faced by Mexican coasts: A comprehensive evaluation Category 1 through 3 hurricanes have been more frequent on the Pacific coast, but the most intense storms, those reaching Category 4 and especially Category 5, have been more common on the Atlantic side. Quintana Roo, home to Cancún and the Riviera Maya on the Caribbean coast, has been hit by the most Category 5 hurricanes of any Mexican state.
Pacific hurricanes sometimes undergo rapid intensification before striking western Mexico, a phenomenon that makes forecasting especially difficult. Hurricane Lidia in 2023, for example, strengthened explosively before hitting Jalisco, with research pointing to its interaction with an upper-level atmospheric trough as a key driver of the rapid intensification.7EGUsphere. Dynamic Forcing Behind Hurricane Lidia’s Rapid Intensification For coastal communities, a storm that is a tropical depression one day and a major hurricane the next leaves very little time to prepare.
The damage from hurricanes extends well beyond wind. Storm surge floods low-lying coastal zones, and the enormous rainfall totals trigger inland flooding and landslides, sometimes hundreds of kilometers from where the storm made landfall. Baja California Sur, Oaxaca, Sinaloa, Tamaulipas, and Veracruz are among the states most frequently affected by tropical storms and hurricanes across both coasts.6PLOS ONE. The challenges of climate change and human impacts faced by Mexican coasts: A comprehensive evaluation
Floods and Landslides
Flooding is arguably the most frequently recurring natural disaster across Mexico. It results from hurricanes, tropical storms, and seasonal heavy rains, and it is made worse by deforestation, unplanned urban growth, and inadequate drainage infrastructure. The state of Tabasco in southeastern Mexico has suffered repeated catastrophic floods; the 2007 Tabasco flood inundated large portions of the state capital, Villahermosa, displacing hundreds of thousands of people. River basin dynamics, land use changes, and the region’s extremely flat, low-lying terrain all contributed to the scale of that disaster.
Landslides are a closely related hazard, particularly in the mountainous interior. When a hurricane or tropical storm dumps rain on steep, deforested slopes, the resulting slides can bury entire communities. The La Pintada landslide in Guerrero state, triggered during the 2013 hurricane season, was a devastating example of how storms and unstable terrain combine into compound disasters. Southern and central Mexican states like Guerrero, Oaxaca, Chiapas, Puebla, and Veracruz are especially vulnerable to this overlap of flooding and mass-wasting hazards.
Drought
While flooding dominates headlines during the rainy season, drought is the slow-building counterpart that can do immense economic damage. Northern and central Mexico include large stretches of arid and semi-arid land that are prone to multi-year dry spells. The 2011 drought, one of the worst on record, devastated livestock populations across northern Mexico and caused severe agricultural losses.8Climatic Change. The impact of extreme weather events on livestock populations: the case of the 2011 drought in Mexico States like Chihuahua, Sonora, Coahuila, and Durango bore the brunt, with ranchers losing cattle by the tens of thousands and reservoirs dropping to critically low levels.
Drought in Mexico tends to be tied to large-scale climate patterns, including La Niña events that suppress rainfall across the northern half of the country. Climate projections suggest that these droughts could become more frequent and severe in coming decades, raising serious concerns about water security for both agriculture and the rapidly growing cities of the central highlands, including the Mexico City metropolitan area, which already struggles with chronic water shortages.
Extreme Heat
Heat waves have emerged as a growing public health threat across Mexico. A study covering 1998 to 2019 found that extreme heat events consistently increased the odds of death across the country, with the strongest effects concentrated along the eastern coast, the southwestern coast, and the Sonora coast in the northwest. The state of Tabasco showed the highest impact, where extreme heat raised the odds of daily mortality by roughly 23 percent compared to non-extreme days.9PubMed Central. Heat-related mortality in Mexico: A multi-scale spatial analysis of extreme heat effects and municipality-level vulnerability The pattern was not uniform: municipalities with older populations, higher levels of poverty, lower education levels, and poorer housing conditions were substantially more vulnerable to heat-related deaths.
The 2023 and 2024 heat waves drove national headlines as temperatures exceeded 45°C (113°F) in parts of northern and central Mexico for extended periods. Unlike earthquakes or hurricanes, extreme heat kills quietly, often affecting people who cannot afford air conditioning or who work outdoors. The combination of rising temperatures and rapid urbanization, where concrete and asphalt absorb and re-radiate heat, is making this problem worse in Mexico’s largest cities.
Tsunamis
Mexico’s Pacific coast faces a meaningful tsunami risk tied directly to the same subduction zone that produces its earthquakes. Large seismic events along the Middle America Trench, where the Cocos plate dives beneath the North American plate, have historically generated tsunamis that strike the coastline within minutes.10IntechOpen. The Risk of Tsunamis in Mexico Because the subduction zone runs close to shore, warning times for locally generated tsunamis are extremely short, sometimes as little as 10 to 15 minutes. The states of Guerrero, Oaxaca, Jalisco, Colima, and Michoacán are most exposed. The 1995 Manzanillo earthquake, for instance, produced a tsunami that contributed to coastal destruction. Distant tsunamis originating from across the Pacific are also a concern, though they allow more lead time for evacuation.
Wildfires
Mexico’s fire season typically runs from February through June, peaking in the hot, dry months before the summer rains arrive. Tropical dry forests, which cover large areas of the Pacific slopes and interior lowlands, are especially fire-prone. Research on these ecosystems shows that fires associated with deforestation and conversion to cattle pasture consume biomass at high rates, with severe consequences for both carbon storage and long-term site productivity.11Forest Ecology and Management. Biomass dynamics associated with deforestation, fire, and, conversion to cattle pasture in a Mexican tropical dry forest In other words, many of Mexico’s wildfires are not purely “natural” in the way a lightning-strike fire in a temperate forest might be. Agricultural clearing, slash-and-burn practices, and land-use change are major ignition sources.
That said, the conditions that allow fires to spread, including drought, high temperatures, and strong winds, are firmly tied to climate and weather. In years with severe drought, fire seasons become dramatically worse. The spring of 2024 was a particularly bad season, with thousands of fires burning across the country simultaneously, shrouding Mexico City in smoke for days. Pine-oak forests in the highlands and cloud forests in the mountains can also burn under drought conditions, threatening ecosystems that are less adapted to fire and slower to recover.
Sinkholes
A less well-known but increasingly visible hazard in Mexico is sinkhole formation, particularly in Mexico City. Over 500 sinkholes were recorded in the capital between 2017 and 2020, and about 31 percent of the city’s total area shows high or very high susceptibility to sinkhole development.12ScienceDirect (Journal of South American Earth Sciences). Mapping sinkhole susceptibility in Mexico City using the weight of evidence method The highest-risk zones are concentrated in the central-northern and eastern parts of the city. A major driver is cumulative groundwater drawdown: as the city pumps water from its underground aquifer faster than it is replenished, the clay lake-bed sediments that underlie much of the metropolitan area compact unevenly, and voids collapse into sinkholes. These can swallow cars, damage buildings, and rupture water and sewer lines.
Mexico’s Yucatán Peninsula also has a different kind of sinkhole issue, where naturally occurring “cenotes” form in the karst limestone bedrock. While cenotes are a normal geological feature and a major tourist attraction, the same porous geology makes the region vulnerable to groundwater contamination and occasional sudden ground collapses, particularly in areas undergoing rapid development.
Mexico’s Earthquake Early Warning System
Mexico was a pioneer in earthquake early warning, and the country’s system, known as SASMEX, has now operated continuously for over 30 years. During that time it has recorded roughly 9,800 earthquakes and issued 111 public alerts. An estimated 25 million people receive SASMEX warnings through dedicated receivers, public loudspeakers, multi-hazard radios, and participating television and radio stations.13Frontiers in Earth Science. The Seismic Early Warning System of Mexico (SASMEX): A Retrospective View and Future Challenges The system works by detecting seismic waves near the coast and transmitting an alert to cities like Mexico City before the stronger, more damaging waves arrive, a window that can be anywhere from a few seconds to over a minute depending on the earthquake’s location.
A significant gap remains in cell-phone-based broadcasting. Mexican cellular operators have not yet implemented the cell-broadcast technology that would push alerts directly to all phones in a target area without requiring an app or subscription. Adding this capability would expand coverage well beyond the current 25 million, reaching people who do not have access to dedicated receivers or who happen to be indoors and away from loudspeakers.
Who Gets Hit Hardest
Natural disasters in Mexico do not affect everyone equally. Vulnerability is tightly linked to poverty, informal housing, and the quality of municipal services. Research in the Guadalajara metropolitan area found that communities built on informal settlements in flood-prone areas faced compounding risks: basic services like drainage and water supply were inadequate, government response capacity was limited, and residents had come to accept high levels of risk as a normal part of life.14Environment and Urbanization. Climate change and flood risk: vulnerability assessment in an urban poor community in Mexico This pattern repeats across the country. Marginalized communities tend to occupy the most hazard-exposed land, whether floodplains, steep hillsides, or areas near active volcanoes, because safer land is more expensive or already claimed.
The heat-mortality research reinforces this finding from a different angle: municipalities with higher marginalization, older populations, and poorer housing conditions consistently showed greater vulnerability to heat-related deaths.9PubMed Central. Heat-related mortality in Mexico: A multi-scale spatial analysis of extreme heat effects and municipality-level vulnerability In practice, this means the same disaster can look very different depending on where you are. An earthquake that causes moderate shaking in a wealthy neighborhood with engineered buildings can collapse poorly constructed homes a few blocks away. A flood that is an inconvenience in one part of a city can be fatal in an informal settlement downstream.
How Mexico Finances Disaster Recovery
Mexico has been unusually innovative in the way it pays for disaster response. In 1996, the government created FONDEN, a national disaster fund that started as a budget line item and was restructured in 1999 into a trust, giving it more financial flexibility and independence from the annual budget cycle. Alongside traditional reconstruction spending, FONDEN pioneered the use of catastrophe bonds and catastrophe insurance programs, which transfer some of the financial risk of major disasters to international capital markets.15Asian Development Blog. Mexico’s experience with its disaster fund and risk management strategy, including multi-catastrophe bonds Multi-catastrophe bonds, which cover earthquakes, hurricanes, and other perils in a single instrument, provide rapid liquidity for emergency response rather than waiting for reconstruction budgets to be approved.
This model has been studied and partially adopted by other disaster-prone countries. However, FONDEN was dissolved by the current administration in 2020 and replaced with different mechanisms, a move that drew criticism from disaster risk specialists who argued it removed a layer of pre-arranged financial protection. How well the replacement arrangements will perform in a major future disaster remains to be seen.
Recorded Earthquakes Before Modern Instruments
Mexico’s seismic history extends far deeper than modern seismology. The earliest written records of earthquakes in the Americas come from pre-Hispanic codices drafted shortly after the Spanish conquest. The Codex Telleriano-Remensis alone documents 12 earthquakes between 1460 and 1542, represented as pictograms that indicate the date and sometimes the severity of shaking.16Seismological Research Letters. The First Written Accounts of Pre‐Hispanic Earthquakes in the Americas These records are invaluable to seismologists because they extend the earthquake catalog back centuries before instrumental monitoring began, helping researchers estimate how often large quakes recur in particular regions. Combined with geological evidence of past eruptions at Popocatépetl that buried pre-Hispanic settlements, these records make clear that the people living in central Mexico have been dealing with geological hazards for as long as civilization has existed there.