| Country | Natural hazards |
| 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 hours prior to and following the high tide and surrounded by reefs
volcanism: Reunion Island - Piton de la Fournaise (elev. 2,632 m, ), which has erupted many times in recent years, including 2010, is one of the world's most active volcanoes; although rare, eruptions outside the volcano's caldera could threaten nearby cities |
| Gabon | NA |
| Gambia, The | drought (rainfall has dropped by 30% in the last 30 years) |
| Gaza Strip | droughts |
| Georgia | earthquakes |
| Germany | flooding |
| Ghana | dry, dusty, northeastern harmattan winds occur from January to March; droughts |
| Gibraltar | NA |
| Greece | severe earthquakes
volcanism: Santorini (elev. 367 m) has been deemed a "Decade Volcano" by the International Association of Volcanology and Chemistry of the Earth's Interior, worthy of study due to its explosive history and close proximity to human populations; although there have been very few eruptions in recent centuries, Methana and Nisyros in the Aegean are classified as historically active |
| Greenland | continuous permafrost over northern two-thirds of the island |
| Grenada | lies on edge of hurricane belt; hurricane season lasts from June to November |
| Guam | frequent squalls during rainy season; relatively rare but potentially destructive typhoons (June - December) |
| Guatemala | numerous volcanoes in mountains, with occasional violent earthquakes; Caribbean coast extremely susceptible to hurricanes and other tropical storms
volcanism: Guatemala experiences significant volcanic activity in the Sierra Madre range; Santa Maria (elev. 3,772 m) has been deemed a "Decade Volcano" by the International Association of Volcanology and Chemistry of the Earth's Interior, worthy of study due to its explosive history and close proximity to human populations; Pacaya (elev. 2,552 m), which erupted in May 2010 causing an ashfall on Guatemala City and prompting evacuations, is one of the country's most active volcanoes; the volcano has frequently been in eruption since 1965; other historically active volcanoes include Acatenango, Almolonga, Atitlan, Fuego, and Tacana |
| Guernsey | NA |
| Guinea | hot, dry, dusty harmattan haze may reduce visibility during dry season |
| Guinea-Bissau | hot, dry, dusty harmattan haze may reduce visibility during dry season; brush fires |
| Guyana | flash floods are a constant threat during rainy seasons |
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This page was last updated on 3 February, 2012 |
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