Western Sahara
lowest point: Sebjet Tah -55 m
highest point: unnamed location 463 m

World
lowest point: Bentley Subglacial Trench -2,540 m
note: in the oceanic realm, Challenger Deep in the Mariana Trench is
the lowest point, lying -10,924 m below the surface of the Pacific
Ocean
highest point: Mount Everest 8,850 m (1999 est.)

Yemen
lowest point: Arabian Sea 0 m
highest point: Jabal an Nabi Shu'ayb 3,760 m

Zambia
lowest point: Zambezi river 329 m
highest point: unnamed location in Mafinga Hills 2,301 m

Zimbabwe
lowest point: junction of the Runde and Save rivers 162 m
highest point: Inyangani 2,592 m

This page was last updated on 10 February, 2005

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@2021 Natural hazards

Afghanistan
damaging earthquakes occur in Hindu Kush mountains;
flooding; droughts

Albania
destructive earthquakes; tsunamis occur along southwestern
coast; floods; drought

Algeria
mountainous areas subject to severe earthquakes; mudslides
and floods in rainy season

American Samoa
typhoons common from December to March

Andorra
avalanches

Angola
locally heavy rainfall causes periodic flooding on the plateau

Anguilla
frequent hurricanes and other tropical storms (July to
October)

Antarctica
katabatic (gravity-driven) winds blow coastward from the
high interior; frequent blizzards form near the foot of the plateau;
cyclonic storms form over the ocean and move clockwise along the
coast; volcanism on Deception Island and isolated areas of West
Antarctica; other seismic activity rare and weak; large icebergs may
calve from ice shelf

Antigua and Barbuda
hurricanes and tropical storms (July to
October); periodic droughts

Arctic Ocean
ice islands occasionally break away from northern
Ellesmere Island; icebergs calved from glaciers in western Greenland
and extreme northeastern Canada; permafrost in islands; virtually
ice locked from October to June; ships subject to superstructure
icing from October to May

Argentina
San Miguel de Tucuman and Mendoza areas in the Andes
subject to earthquakes; pamperos are violent windstorms that can
strike the pampas and northeast; heavy flooding

Armenia
occasionally severe earthquakes; droughts

Aruba
lies outside the Caribbean hurricane belt

Ashmore and Cartier Islands
surrounded by shoals and