| Country | Natural hazards |
| British Virgin Islands | hurricanes and tropical storms (July to October) |
| Brunei | typhoons, earthquakes, and severe flooding are rare |
| Bulgaria | earthquakes, landslides |
| Burkina Faso | recurring droughts |
| Burma | destructive earthquakes and cyclones; flooding and landslides common during rainy season (June to September); periodic droughts |
| Burundi | flooding, landslides, drought |
| Cambodia | monsoonal rains (June to November); flooding; occasional droughts |
| Cameroon | volcanic activity with periodic releases of poisonous gases from Lake Nyos and Lake Monoun volcanoes |
| Canada | continuous permafrost in north is a serious obstacle to development; cyclonic storms form east of the Rocky Mountains, a result of the mixing of air masses from the Arctic, Pacific, and North American interior, and produce most of the country's rain and snow east of the mountains |
| Cape Verde | prolonged droughts; seasonal harmattan wind produces obscuring dust; volcanically and seismically active |
| Cayman Islands | hurricanes (July to November) |
| Central African Republic | hot, dry, dusty harmattan winds affect northern areas; floods are common |
| Chad | hot, dry, dusty harmattan winds occur in north; periodic droughts; locust plagues |
| Chile | severe earthquakes; active volcanism; tsunamis |
| China | frequent typhoons (about five per year along southern and eastern coasts); damaging floods; tsunamis; earthquakes; droughts; land subsidence |
| Christmas Island | the narrow fringing reef surrounding the island can be a maritime hazard |
| Clipperton Island | NA |
| Cocos (Keeling) Islands | cyclone season is October to April |
| Colombia | highlands subject to volcanic eruptions; occasional earthquakes; periodic droughts |
| Comoros | cyclones possible during rainy season (December to April); Le Kartala on Grand Comore is an active volcano |
| Congo, Democratic Republic of the | periodic droughts in south; Congo River floods (seasonal); in the east, in the Great Rift Valley, there are active volcanoes |
| Congo, Republic of the | seasonal flooding |
| Cook Islands | typhoons (November to March) |
| Coral Sea Islands | occasional tropical cyclones |
| Costa Rica | occasional earthquakes, hurricanes along Atlantic coast; frequent flooding of lowlands at onset of rainy season and landslides; active volcanoes |
| Cote d'Ivoire | coast has heavy surf and no natural harbors; during the rainy season torrential flooding is possible |
| Croatia | destructive earthquakes |
| Cuba | the east coast is subject to hurricanes from August to November (in general, the country averages about one hurricane every other year); droughts are common |
| Cyprus | moderate earthquake activity; droughts |
| Czech Republic | flooding |
| Denmark | flooding is a threat in some areas of the country (e.g., parts of Jutland, along the southern coast of the island of Lolland) that are protected from the sea by a system of dikes |
| Dhekelia | void |
| Djibouti | earthquakes; droughts; occasional cyclonic disturbances from the Indian Ocean bring heavy rains and flash floods |
| Dominica | flash floods are a constant threat; destructive hurricanes can be expected during the late summer months |
| Dominican Republic | lies in the middle of the hurricane belt and subject to severe storms from June to October; occasional flooding; periodic droughts |
| Ecuador | frequent earthquakes, landslides, volcanic activity; floods; periodic droughts |
| Egypt | periodic droughts; frequent earthquakes, flash floods, landslides; hot, driving windstorm called khamsin occurs in spring; dust storms, sandstorms |
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