word | | Natural hazards |
| activity | Korea, South | occasional typhoons bring high winds and floods; low-level seismic activity common in southwest |
| activity | New Zealand | earthquakes are common, though usually not severe; volcanic activity |
| activity | Pacific Ocean | surrounded by a zone of violent volcanic and earthquake activity sometimes referred to as the "Pacific Ring of Fire"; subject to tropical cyclones (typhoons) in southeast and east Asia from May to ... |
| activity | Peru | earthquakes, tsunamis, flooding, landslides, mild volcanic activity |
| activity | Russia | permafrost over much of Siberia is a major impediment to development; volcanic activity in the Kuril Islands; volcanoes and earthquakes on the Kamchatka Peninsula; spring floods and summer/autumn forest fires throughout ... |
| activity | Saint Lucia | hurricanes and volcanic activity |
| activity | Solomon Islands | typhoons, but rarely destructive; geologically active region with frequent earthquakes, tremors, and volcanic activity; tsunamis |
| activity | Tonga | cyclones (October to April); earthquakes and volcanic activity on Fonuafo'ou |
| activity | United States | tsunamis, volcanoes, and earthquake activity around Pacific Basin; hurricanes along the Atlantic and Gulf of Mexico coasts; tornadoes in the midwest and southeast; mud slides in California; forest fires in the west ... |
| affect | Benin | hot, dry, dusty harmattan wind may affect north from December to March |
| affect | Central African Republic | hot, dry, dusty harmattan winds affect northern areas; floods are common |
| affected | Philippines | astride typhoon belt, usually affected by 15 and struck by five to six cyclonic storms per year; landslides; active volcanoes; destructive earthquakes; tsunamis |
| Agrihan | Northern Mariana Islands | active volcanoes on Pagan and Agrihan; typhoons (especially August to November) |
| air | Canada | ... 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 ... |
| Alaska | United States | ... the Atlantic and Gulf of Mexico coasts; tornadoes in the midwest and southeast; mud slides in California; forest fires in the west; flooding; permafrost in northern Alaska, a major impediment to development |
| Almaty | Kazakhstan | earthquakes in the south, mudslides around Almaty |
| Ambae | Vanuatu | tropical cyclones or typhoons (January to April); volcanic eruption on Aoba (Ambae) island began 27 November 2005, volcanism also causes minor earthquakes; tsunamis |
| America | Pacific Ocean | ... frequent from July to October); tropical cyclones (hurricanes) may form south of Mexico and strike Central America and Mexico from June to October (most common in August and September); cyclical El Nino ... |
| American | Canada | ... 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 |
| Amsterdam | French Southern and Antarctic Lands | Ile Amsterdam and Ile Saint-Paul are inactive volcanoes; Iles Eparses subject to periodic cyclones; Bassas da India is a maritime hazard since it is under water for a period of three ... |
| Andes | 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 |
| annual | Southern Ocean | ... ice (generally 0.5 to 1 m thick) with sometimes dynamic short-term variations and with large annual and interannual variations; deep continental shelf floored by glacial deposits varying widely over short distances ... |
| Antarctica | Antarctica | ... 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 |
| any | Kiribati | typhoons can occur any time, but usually November to March; occasional tornadoes; low level of some of the islands make them sensitive to changes in sea level |