word | | Natural hazards |
| blows | Mauritania | hot, dry, dust/sand-laden sirocco wind blows primarily in March and April; periodic droughts |
| blows | Uruguay | seasonally high winds (the pampero is a chilly and occasional violent wind that blows north from the Argentine pampas), droughts, floods; because of the absence of mountains, which act as weather barriers ... |
| boggy | Paraguay | local flooding in southeast (early September to June); poorly drained plains may become boggy (early October to June) |
| Bogota | Colombia | ... proximity to human populations; Nevado del Ruiz (elev. 5,321 m), 129 km (80 mi) west of Bogota, erupted in 1985 producing lahars that killed 23,000 people; the volcano last erupted in 1991 ... |
| Bolivia | 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 ... |
| border | Argentina | ... flooding in some areas volcanism: Argentina experiences volcanic activity in the Andes Mountains along the Chilean border; Copahue (elev. 2,997 m) last erupted in 2000; other historically active volcanoes include Llullaillaco, Maipo ... |
| border | 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 ... |
| border | Djibouti | ... Ocean bring heavy rains and flash floods volcanism: Djibouti experiences limited volcanic activity; Ardoukoba (elev. 298 m) last erupted in 1978; Manda-Inakir, located along the Ethiopian border, is also historically active |
| border | Korea, North | ... followed by severe flooding; occasional typhoons during the early fall volcanism: Changbaishan (elev. 2,744 m) (also known as Baitoushan, Baegdu or P'aektu-san), on the Chinese border, is considered historically active |
| border | Rwanda | periodic droughts; the volcanic Virunga mountains are in the northwest along the border with Democratic Republic of the Congo volcanism: Visoke (elev. 3,711 m), located on the border with the Democratic Republic ... |