word | | Natural hazards |
| Avachinsky | World | ... a list of 16 volcanoes worthy of special study because of their great potential for destruction: Avachinsky-Koryaksky (Russia), Colima (Mexico), Etna (Italy), Galeras (Colombia), Mauna Loa (United States), Merapi (Indonesia), Nyiragongo ... |
| avalanches | Andorra | avalanches |
| avalanches | Austria | landslides; avalanches; earthquakes |
| avalanches | 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 |
| avalanches | 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) |
| avalanches | Italy | regional risks include landslides, mudflows, avalanches, earthquakes, volcanic eruptions, flooding; land subsidence in Venice volcanism: Italy experiences significant volcanic activity; Etna (elev. 3,330 m), which is in eruption as of 2010, is ... |
| avalanches | New Zealand | ... has a history of large eruptions in the past century; Taranaki has the potential to produce dangerous avalanches and lahars; other historically active volcanoes include Okataina, Raoul Island, Tongariro, and White Island |
| avalanches | Norway | rockslides, avalanches volcanism: Beerenberg (elev. 2,227 m) on Jan Mayen Island in the Norwegian Sea is the country's only active volcano |
| avalanches | Switzerland | avalanches, landslides; flash floods |
| averages | 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 |
| awakening | Yemen | ... Tair) (elev. 244 m), which forms an island in the Red Sea, erupted in 2007 after awakening from dormancy; other historically active volcanoes include Harra of Arhab, Harras of Dhamar, Harra es ... |
| awash | United States Pacific Island Wildlife Refuges | ... the narrow fringing reef surrounding the island can be a maritime hazard Kingman Reef: wet or awash most of the time, maximum elevation of less than 2 m makes Kingman Reef a ... |