word | | Natural hazards |
| sirocco | Mauritania | hot, dry, dust/sand-laden sirocco wind blows primarily in March and April; periodic droughts |
| sirocco | Western Sahara | hot, dry, dust/sand-laden sirocco wind can occur during winter and spring; widespread harmattan haze exists 60% of time, often severely restricting visibility |
| situated | Papua New Guinea | active volcanism; situated along the Pacific "Ring of Fire"; the country is subject to frequent and sometimes severe earthquakes; mud slides; tsunamis |
| six | Philippines | astride typhoon belt, usually affected by 15 and struck by five to six cyclonic storms per year; landslides; active volcanoes; destructive earthquakes; tsunamis |
| slides | Papua New Guinea | active volcanism; situated along the Pacific "Ring of Fire"; the country is subject to frequent and sometimes severe earthquakes; mud slides; tsunamis |
| slides | United States | ... hurricanes along 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 ... |
| snow | 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 |
| sometimes | El Salvador | known as the Land of Volcanoes; frequent and sometimes destructive earthquakes and volcanic activity; extremely susceptible to hurricanes |
| sometimes | Estonia | sometimes flooding occurs in the spring |
| sometimes | 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 ... |
| sometimes | Papua New Guinea | active volcanism; situated along the Pacific "Ring of Fire"; the country is subject to frequent and sometimes severe earthquakes; mud slides; tsunamis |
| sometimes | Southern Ocean | ... hundred meters; smaller bergs and iceberg fragments; sea 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 ... |
| Soufriere | Montserrat | severe hurricanes (June to November); volcanic eruptions (Soufriere Hills volcano has erupted continuously since 1995) |
| Soufriere | Saint Vincent and the Grenadines | hurricanes; Soufriere volcano on the island of Saint Vincent is a constant threat |
| source | 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 |
| sources | Southern Ocean | ... glacial deposits varying widely over short distances; high winds and large waves much of the year; ship icing, especially May-October; most of region is remote from sources of search and rescue |
| south | Atlantic Ocean | ... 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 ... |
| south | Belize | frequent, devastating hurricanes (June to November) and coastal flooding (especially in south) |
| south | Brazil | recurring droughts in northeast; floods and occasional frost in south |
| south | 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 |
| south | European Union | flooding along coasts; avalanches in mountainous area; earthquakes in the south; volcanic eruptions in Italy; periodic droughts in Spain; ice floes in the Baltic |
| south | France | metropolitan France: flooding; avalanches; midwinter windstorms; drought; forest fires in south near the Mediterranean overseas departments: hurricanes (cyclones), flooding, volcanic activity (Guadeloupe, Martinique, Reunion) |
| south | Kazakhstan | earthquakes in the south, mudslides around Almaty |
| south | Mexico | tsunamis along the Pacific coast, volcanoes and destructive earthquakes in the center and south, and hurricanes on the Pacific, Gulf of Mexico, and Caribbean coasts |
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