word | | Natural hazards |
| common | Mali | hot, dust-laden harmattan haze common during dry seasons; recurring droughts; occasional Niger River flooding |
| common | New Zealand | earthquakes are common, though usually not severe; volcanic activity volcanism: New Zealand experiences significant volcanism on North Island; Ruapehu (elev. 2,797 m), which last erupted in 2007, has a history of large ... |
| common | Pacific Ocean | ... may form south of Mexico and strike Central America and Mexico from June to October (most common in August and September); cyclical El Nino/La Nina phenomenon occurs in the equatorial Pacific ... |
| common | Qatar | haze, dust storms, sandstorms common |
| common | Timor-Leste | floods and landslides are common; earthquakes; tsunamis; tropical cyclones |
| Comore | Comoros | cyclones possible during rainy season (December to April); volcanic activity on Grand Comore volcanism: Karthala (elev. 2,361 m) on Grand Comore Island last erupted in 2007; a 2005 eruption forced thousands of ... |
| completely | Mauritius | cyclones (November to April); almost completely surrounded by reefs that may pose maritime hazards |
| concentrated | United States | ... famous for the devastating 1980 eruption, remains active today; numerous other historically active volcanoes exist, mostly concentrated in the Aleutian arc and Hawaii; they include: in Alaska: Aniakchak, Augustine, Chiginagak, Fourpeaked, Iliamna ... |
| Concepcion | Nicaragua | ... volcanoes; its lava flows and ash have been known to cause significant damage to farmland and buildings; other historically active volcanoes include Concepcion, Cosiguina, Las Pilas, Masaya, Momotombo, San Cristobal, and Telica |
| Conchaguita | El Salvador | ... slopes; San Miguel (elev. 2,130 m), which last erupted in 2002, is one of the most active volcanoes in the country; other historically active volcanoes include Conchaguita, Ilopango, Izalco, and Santa Ana |
| concrete | Belgium | flooding is a threat along rivers and in areas of reclaimed coastal land, protected from the sea by concrete dikes |
| conditions | Mongolia | dust storms; grassland and forest fires; drought; "zud," which is harsh winter conditions |
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