word | | Natural hazards |
| approximately | Montserrat | ... height of 915 m (3,010 ft), has erupted continuously since 1995; a massive eruption in 1997 destroyed most of the capital, Plymouth, and resulted in approximately half of the island becoming uninhabitable |
| April | Bolivia | flooding in the northeast (March-April) volcanism: Bolivia experiences volcanic activity in Andes Mountains on the border with Chile; historically active volcanoes in this region are Irruputuncu (elev. 5,163 m), which last ... |
| April | Cocos (Keeling) Islands | cyclone season is October to April |
| April | 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 ... |
| April | Kuwait | sudden cloudbursts are common from October to April and bring heavy rain, which can damage roads and houses; sandstorms and dust storms occur throughout the year but are most common between March ... |
| April | Mauritania | hot, dry, dust/sand-laden sirocco wind blows primarily in March and April; periodic droughts |
| April | Mauritius | cyclones (November to April); almost completely surrounded by reefs that may pose maritime hazards |
| April | Tonga | cyclones (October to April); earthquakes and volcanic activity on Fonuafo'ou volcanism: the Tonga Islands experience volcanic activity; Fonualei (elev. 180 m) has shown frequent activity in recent years, while Niuafo'ou ... |
| April | Vanuatu | tropical cyclones or typhoons (January to April); volcanic eruption on Aoba (Ambae) island began on 27 November 2005, volcanism also causes minor earthquakes; tsunamis volcanism: Vanuatu experiences significant volcanic activity, with many ... |
| April | Zambia | periodic drought; tropical storms (November to April) |
| Arabia | Saudi Arabia | frequent sand and dust storms volcanism: Despite Saudi Arabia's many volcanic formations, there has been little activity in the past few centuries; volcanoes include Harrat Rahat, Harrat Khaybar, Harrat Lunayyir, and ... |