| Country | Natural hazards |
| Afghanistan | damaging earthquakes occur in Hindu Kush mountains; flooding; droughts |
| Akrotiri | void |
| Albania | destructive earthquakes; tsunamis occur along southwestern coast; floods; drought |
| Algeria | mountainous areas subject to severe earthquakes; mudslides and floods in rainy season |
| American Samoa | typhoons common from December to March |
| Andorra | avalanches |
| Angola | locally heavy rainfall causes periodic flooding on the plateau |
| Anguilla | frequent hurricanes and other tropical storms (July to October) |
| Antarctica | katabatic (gravity-driven) winds blow coastward from the high interior; frequent blizzards form near the foot of the plateau; cyclonic storms form over the ocean and move clockwise along the coast; volcanism on Deception Island and isolated areas of West Antarctica; other seismic activity rare and weak; large icebergs may calve from ice shelf |
| Antigua and Barbuda | hurricanes and tropical storms (July to October); periodic droughts |
| Arctic Ocean | ice islands occasionally break away from northern Ellesmere Island; icebergs calved from glaciers in western Greenland and extreme northeastern Canada; permafrost in islands; virtually ice locked from October to June; ships subject to superstructure icing from October to May |
| Argentina | San Miguel de Tucuman and Mendoza areas in the Andes subject to earthquakes; pamperos are violent windstorms that can strike the pampas and northeast; heavy flooding |
| Armenia | occasionally severe earthquakes; droughts |
| Aruba | hurricanes; lies outside the Caribbean hurricane belt and is rarely threatened |
| Ashmore and Cartier Islands | surrounded by shoals and reefs that can pose maritime hazards |
| Atlantic Ocean | icebergs common in Davis Strait, Denmark Strait, and the northwestern Atlantic Ocean from February to August and have been spotted as far south as Bermuda and the Madeira Islands; ships subject to superstructure icing in extreme northern Atlantic from October to May; persistent fog can be a maritime hazard from May to September; hurricanes (May to December) |
| Australia | cyclones along the coast; severe droughts; forest fires |
| Austria | landslides; avalanches; earthquakes |
| Azerbaijan | droughts |
| Bahamas, The | hurricanes and other tropical storms cause extensive flood and wind damage |
| Bahrain | periodic droughts; dust storms |
| Bangladesh | droughts, cyclones; much of the country routinely inundated during the summer monsoon season |
| Barbados | infrequent hurricanes; periodic landslides |
| Belarus | NA |
| Belgium | flooding is a threat along rivers and in areas of reclaimed coastal land, protected from the sea by concrete dikes |
| Belize | frequent, devastating hurricanes (June to November) and coastal flooding (especially in south) |
| Benin | hot, dry, dusty harmattan wind may affect north from December to March |
| Bermuda | hurricanes (June to November) |
| Bhutan | violent storms from the Himalayas are the source of the country's name, which translates as Land of the Thunder Dragon; frequent landslides during the rainy season |
| Bolivia | flooding in the northeast (March-April) |
| Bosnia and Herzegovina | destructive earthquakes |
| Botswana | periodic droughts; seasonal August winds blow from the west, carrying sand and dust across the country, which can obscure visibility |
| Bouvet Island | NA |
| Brazil | recurring droughts in northeast; floods and occasional frost in south |
| British Indian Ocean Territory | NA |
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