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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 reefs that can
pose maritime hazards
Atlantic Ocean
icebergs common in Davis Strait, Denmark Strait, and
the northwestern Atlantic Ocean from February to August and have
been spotted as far south as Bermuda and the Madeira Islands; ships
subject to superstructure icing in extreme northern Atlantic from
October to May; persistent fog can be a maritime hazard from May to
September; hurricanes (May to December)
Australia
cyclones along the coast; severe droughts; forest fires
Austria
landslides; avalanches; earthquakes
Azerbaijan
droughts
Bahamas, The
hurricanes and other tropical storms cause extensive
flood and wind damage
Bahrain
periodic droughts; dust storms
Baker Island
the narrow fringing reef surrounding the island can be
a maritime hazard
Bangladesh
droughts, cyclones; much of the country routinely
inundated during the summer monsoon season
Barbados
infrequent hurricanes; periodic landslides
Bassas da India
maritime hazard since it is usually under water
during high tide and surrounded by reefs; subject to periodic
cyclones
Belarus
NA
Belgium
flooding is a threat in areas of reclaimed coastal land,
protected from the sea by concrete dikes
Belize
frequent, devastating hurricanes (June to November) and
coastal flooding (especially in south)
Benin
hot, dry, dusty harmattan wind may affect north from December
to March
Bermuda
hurricanes (June to November)
Bhutan
violent storms from the Himalayas are the source of the
country's name which translates as Land of the Thunder Dragon;
frequent landslides during the rainy season
Bolivia
flooding in the northeast (March-April)
Bosnia and Herzegovina
destructive earthquakes
Botswana
periodic droughts; seasonal August winds blow from the
west, carrying sand and dust across the country, which can obscure
visibility
Bouvet Island
NA
Brazil
recurring droughts in northeast; floods and occasional frost
in south
British Indian Ocean Territory
NA
British Virgin Islands
hurricanes and tropical storms (July to
October)
Brunei
typhoons, earthquakes, and severe flooding are rare
Bulgaria
earthquakes, landslides
Burkina Faso
recurring droughts
Burma
destructive earthquakes and cyclones; flooding and landslides
common during rainy season (June to September); periodic droughts
Burundi
flooding, landslides, drought
Cambodia
monsoonal rains (June to November); flooding; occasional
droughts
Cameroon
volcanic activity with periodic releases of poisonous gases
from Lake Nyos and Lake Monoun volcanoes
Canada
continuous permafrost in north is a serious obstacle to
development; cyclonic storms form east of the Rocky Mountains, a
result of the mixing of air masses from the Arctic, Pacific, and
North American interior, and produce most of the country's rain and
snow east of the mountains
Cape Verde
prolonged droughts; seasonal harmattan wind produces
obscuring dust; volcanically and seismically active
Cayman Islands
hurricanes (July to November)
Central African Republic
hot, dry, dusty harmattan winds affect
northern areas; floods are common
Chad
hot, dry, dusty harmattan winds occur in north; periodic
droughts; locust plagues
Chile
severe earthquakes; active volcanism; tsunamis
China
frequent typhoons (about five per year along southern and
eastern coasts); damaging floods; tsunamis; earthquakes; droughts;
land subsidence
Christmas Island
the narrow fringing reef surrounding the island can
be a maritime hazard
Clipperton Island
NA
Cocos (Keeling) Islands
cyclone season is October to April
Colombia
highlands subject to volcanic eruptions; occasional
earthquakes; periodic droughts
Comoros
cyclones possible during rainy season (December to April);
Le Kartala on Grand Comore is an active volcano
Congo, Democratic Republic of the
periodic droughts in south; Congo
River floods (seasonal); in the east, in the Great Rift Valley,
there are active volcanoes
Congo, Republic of the
seasonal flooding
Cook Islands
typhoons (November to March)
Coral Sea Islands
occasional tropical cyclones
Costa Rica
occasional earthquakes, hurricanes along Atlantic coast;
frequent flooding of lowlands at onset of rainy season and
landslides; active volcanoes
Cote d'Ivoire
coast has heavy surf and no natural harbors; during
the rainy season torrential flooding is possible
Croatia
destructive earthquakes
Cuba
the east coast is subject to hurricanes from August to October
(in general, the country averages about one hurricane every other
year); droughts are common
Cyprus
moderate earthquake activity; droughts
Czech Republic
flooding
Denmark
flooding is a threat in some areas of the country (e.g.,
parts of Jutland, along the southern coast of the island of Lolland)
that are protected from the sea by a system of dikes
Djibouti
earthquakes; droughts; occasional cyclonic disturbances
from the Indian Ocean bring heavy rains and flash floods
Dominica
flash floods are a constant threat; destructive hurricanes
can be expected during the late summer months
Dominican Republic
lies in the middle of the hurricane belt and
subject to severe storms from June to October; occasional flooding;
periodic droughts
East Timor
floods and landslides are common; earthquakes, tsunamis,
tropical cyclones
Ecuador
frequent earthquakes, landslides, volcanic activity; floods;
periodic droughts
Egypt
periodic droughts; frequent earthquakes, flash floods,
landslides; hot, driving windstorm called khamsin occurs in spring;
dust storms, sandstorms
El Salvador
known as the Land of Volcanoes; frequent and sometimes
very destructive earthquakes and volcanic activity; extremely
susceptible to hurricanes
Equatorial Guinea
violent windstorms, flash floods
Eritrea
frequent droughts; locust swarms
Estonia
sometimes flooding occurs in the spring
Ethiopia
geologically active Great Rift Valley susceptible to
earthquakes, volcanic eruptions; frequent droughts
Europa Island
NA
Falkland Islands (Islas Malvinas)
strong winds persist throughout
the year
Faroe Islands
NA
Fiji
cyclonic storms can occur from November to January
Finland
NA
France
flooding; avalanches; midwinter windstorms; drought; forest
fires in south near the Mediterranean
French Guiana
high frequency of heavy showers and severe
thunderstorms; flooding
French Polynesia
occasional cyclonic storms in January
French Southern and Antarctic Lands
Ile Amsterdam and Ile Saint-Paul
are extinct volcanoes
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
Glorioso Islands
periodic cyclones
Greece
severe earthquakes
Greenland
continuous permafrost over northern two-thirds of the
island
Grenada
lies on edge of hurricane belt; hurricane season lasts from
June to November
Guadeloupe
hurricanes (June to October); Soufriere de Guadeloupe is
an active volcano
Guam
frequent squalls during rainy season; relatively rare, but
potentially very destructive typhoons (June - December)
Guatemala
numerous volcanoes in mountains, with occasional violent
earthquakes; Caribbean coast extremely susceptible to hurricanes and
other tropical storms
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
Haiti
lies in the middle of the hurricane belt and subject to severe
storms from June to October; occasional flooding and earthquakes;
periodic droughts
Heard Island and McDonald Islands
Mawson Peak, an active volcano, is
on Heard Island
Holy See (Vatican City)
NA
Honduras
frequent, but generally mild, earthquakes; extremely
susceptible to damaging hurricanes and floods along the Caribbean
coast
Hong Kong
occasional typhoons
Howland Island
the narrow fringing reef surrounding the island can
be a maritime hazard
Iceland
earthquakes and volcanic activity
India
droughts; flash floods, as well as widespread and destructive
flooding from monsoonal rains; severe thunderstorms; earthquakes
Indian Ocean
occasional icebergs pose navigational hazard in
southern reaches
Indonesia
occasional floods, severe droughts, tsunamis, earthquakes,
volcanoes, forest fires
Iran
periodic droughts, floods; dust storms, sandstorms; earthquakes
along western border and in the northeast
Iraq
dust storms, sandstorms, floods
Ireland
NA
Israel
sandstorms may occur during spring and summer; droughts;
periodic earthquakes
Italy
regional risks include landslides, mudflows, avalanches,
earthquakes, volcanic eruptions, flooding; land subsidence in Venice
Jamaica
hurricanes (especially July to November)
Jan Mayen
dominated by the volcano Haakon VII Toppen/Beerenberg;
volcanic activity resumed in 1970
Japan
many dormant and some active volcanoes; about 1,500 seismic
occurrences (mostly tremors) every year; tsunamis; typhoons
Jarvis Island
the narrow fringing reef surrounding the island poses
a maritime hazard
Jersey
NA
Johnston Atoll
NA
Jordan
droughts; periodic earthquakes
Juan de Nova Island
periodic cyclones
Kazakhstan
earthquakes in the south, mudslides around Almaty
Kenya
recurring drought; flooding during rainy seasons
Kingman Reef
wet or awash most of the time, maximum elevation of
about 1 meter makes Kingman Reef a maritime hazard
Kiribati
typhoons can occur any time, but usually November to March;
occasional tornadoes; low level of some of the islands make them
very sensitive to changes in sea level
Korea, North
late spring droughts often followed by severe flooding;
occasional typhoons during the early fall
Korea, South
occasional typhoons bring high winds and floods;
low-level seismic activity common in southwest
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
and August
Kyrgyzstan
NA
Laos
floods, droughts
Latvia
NA
Lebanon
dust storms, sandstorms
Lesotho
periodic droughts
Liberia
dust-laden harmattan winds blow from the Sahara (December to
March)
Libya
hot, dry, dust-laden ghibli is a southern wind lasting one to
four days in spring and fall; dust storms, sandstorms
Liechtenstein
NA
Lithuania
NA
Luxembourg
NA
Macau
typhoons
Macedonia, The Former Yugoslav Republic of
high seismic risks
Madagascar
periodic cyclones
Malawi
NA
Malaysia
flooding, landslides, forest fires
Maldives
low level of islands makes them very sensitive to sea level
rise
Mali
hot, dust-laden harmattan haze common during dry seasons;
recurring droughts; occasional Niger River flooding
Malta
NA
Man, Isle of
NA
Marshall Islands
infrequent typhoons
Martinique
hurricanes, flooding, and volcanic activity (an average
of one major natural disaster every five years)
Mauritania
hot, dry, dust/sand-laden sirocco wind blows primarily in
March and April; periodic droughts
Mauritius
cyclones (November to April); almost completely surrounded
by reefs that may pose maritime hazards
Mayotte
cyclones during rainy season
Mexico
tsunamis along the Pacific coast, volcanoes and destructive
earthquakes in the center and south, and hurricanes on the Pacific,
Gulf of Mexico, and Caribbean coasts
Micronesia, Federated States of
typhoons (June to December)
Midway Islands
NA
Moldova
landslides (57 cases in 1998)
Monaco
NA
Mongolia
dust storms, grassland and forest fires, drought, and
"zud", which is harsh winter conditions
Montserrat
severe hurricanes (June to November); volcanic eruptions
(Soufriere Hills volcano has erupted continuously since 1996)
Morocco
northern mountains geologically unstable and subject to
earthquakes; periodic droughts
Mozambique
severe droughts; devastating cyclones and floods occur in
central and southern provinces
Namibia
prolonged periods of drought
Nauru
periodic droughts
Navassa Island
NA
Nepal
severe thunderstorms, flooding, landslides, drought, and
famine depending on the timing, intensity, and duration of the
summer monsoons
Netherlands
flooding
Netherlands Antilles
Curacao and Bonaire are south of Caribbean
hurricane belt and are rarely threatened; Sint Maarten, Saba, and
Sint Eustatius are subject to hurricanes from July to October
New Caledonia
cyclones, most frequent from November to March
New Zealand
earthquakes are common, though usually not severe;
volcanic activity
Nicaragua
destructive earthquakes, volcanoes, landslides; extremely
susceptible to hurricanes
Niger
recurring droughts
Nigeria
periodic droughts; flooding
Niue
typhoons
Norfolk Island
typhoons (especially May to July)
Northern Mariana Islands
active volcanoes on Pagan and Agrihan;
typhoons (especially August to November)
Norway
rockslides, avalanches
Oman
summer winds often raise large sandstorms and dust storms in
interior; periodic droughts
Pacific Ocean
surrounded by a zone of violent volcanic and
earthquake activity sometimes referred to as the "Pacific Ring of
Fire"; subject to tropical cyclones (typhoons) in southeast and east
Asia from May to December (most frequent from July to October);
tropical cyclones (hurricanes) may form south of Mexico and strike
Central America and Mexico from June to October (most common in
August and September); cyclical El Nino/La Nina phenomenon occurs in
the equatorial Pacific, influencing weather in the Western
Hemisphere and the western Pacific; ships subject to superstructure
icing in extreme north from October to May; persistent fog in the
northern Pacific can be a maritime hazard from June to December
Pakistan
frequent earthquakes, occasionally severe especially in
north and west; flooding along the Indus after heavy rains (July and
August)
Palau
typhoons (June to December)
Palmyra Atoll
NA
Panama
occasional severe storms and forest fires in the Darien area
Papua New Guinea
active volcanism; situated along the Pacific "Ring
of Fire"; the country is subject to frequent and sometimes severe
earthquakes; mud slides; tsunamis
Paracel Islands
typhoons
Paraguay
local flooding in southeast (early September to June);
poorly drained plains may become boggy (early October to June)
Peru
earthquakes, tsunamis, flooding, landslides, mild volcanic
activity
Philippines
astride typhoon belt, usually affected by 15 and struck
by five to six cyclonic storms per year; landslides; active
volcanoes; destructive earthquakes; tsunamis
Pitcairn Islands
typhoons (especially November to March)
Poland
flooding
Portugal
Azores subject to severe earthquakes
Puerto Rico
periodic droughts; hurricanes
Qatar
haze, dust storms, sandstorms common
Reunion
periodic, devastating cyclones (December to April); Piton de
la Fournaise on the southeastern coast is an active volcano
Romania
earthquakes, most severe in south and southwest; geologic
structure and climate promote landslides
Russia
permafrost over much of Siberia is a major impediment to
development; volcanic activity in the Kuril Islands; volcanoes and
earthquakes on the Kamchatka Peninsula; spring floods and
summer/autumn forest fires throughout Siberia and parts of European
Russia
Rwanda
periodic droughts; the volcanic Virunga mountains are in the
northwest along the border with Democratic Republic of the Congo
Saint Helena
active volcanism on Tristan da Cunha
Saint Kitts and Nevis
hurricanes (July to October)
Saint Lucia
hurricanes and volcanic activity
Saint Pierre and Miquelon
persistent fog throughout the year can be
a maritime hazard
Saint Vincent and the Grenadines
hurricanes; Soufriere volcano on
the island of Saint Vincent is a constant threat
Samoa
occasional typhoons; active volcanism
San Marino
NA
Sao Tome and Principe
NA
Saudi Arabia
frequent sand and dust storms
Senegal
lowlands seasonally flooded; periodic droughts
Serbia and Montenegro
destructive earthquakes
Seychelles
lies outside the cyclone belt, so severe storms are rare;
short droughts possible
Sierra Leone
dry, sand-laden harmattan winds blow from the Sahara
(December to February); sandstorms, dust storms
Singapore
NA
Slovakia
NA
Slovenia
flooding and earthquakes
Solomon Islands
typhoons, but rarely destructive; geologically
active region with frequent earth tremors; volcanic activity
Somalia
recurring droughts; frequent dust storms over eastern plains
in summer; floods during rainy season
South Africa
prolonged droughts
South Georgia and the South Sandwich Islands
the South Sandwich
Islands have prevailing weather conditions that generally make them
difficult to approach by ship; they are also subject to active
volcanism
Southern Ocean
huge icebergs with drafts up to several hundred
meters; smaller bergs and iceberg fragments; sea ice (generally 0.5
to 1 meter thick) with sometimes dynamic short-term variations and
with large annual and interannual variations; deep continental shelf
floored by glacial deposits varying widely over short distances;
high winds and large waves much of the year; ship icing, especially
May-October; most of region is remote from sources of search and
rescue
Spain
periodic droughts
Spratly Islands
typhoons; serious maritime hazard because of
numerous reefs and shoals
Sri Lanka
occasional cyclones and tornadoes
Sudan
dust storms and periodic persistent droughts
Suriname
NA
Svalbard
ice floes often block the entrance to Bellsund (a transit
point for coal export) on the west coast and occasionally make parts
of the northeastern coast inaccessible to maritime traffic
Swaziland
drought
Sweden
ice floes in the surrounding waters, especially in the Gulf
of Bothnia, can interfere with maritime traffic
Switzerland
avalanches, landslides, flash floods
Syria
dust storms, sandstorms
Taiwan
earthquakes and typhoons
Tajikistan
earthquakes and floods
Tanzania
flooding on the central plateau during the rainy season;
drought
Thailand
land subsidence in Bangkok area resulting from the
depletion of the water table; droughts
Togo
hot, dry harmattan wind can reduce visibility in north during
winter; periodic droughts
Tokelau
lies in Pacific typhoon belt
Tonga
cyclones (October to April); earthquakes and volcanic activity
on Fonuafo'ou
Trinidad and Tobago
outside usual path of hurricanes and other
tropical storms
Tromelin Island
NA
Tunisia
NA
Turkey
very severe earthquakes, especially in northern Turkey, along
an arc extending from the Sea of Marmara to Lake Van
Turkmenistan
NA
Turks and Caicos Islands
frequent hurricanes
Tuvalu
severe tropical storms are usually rare, but, in 1997, there
were three cyclones; low level of islands make them very sensitive
to changes in sea level
Uganda
NA
Ukraine
NA
United Arab Emirates
frequent sand and dust storms
United Kingdom
winter windstorms; floods
United States
tsunamis, volcanoes, and earthquake activity around
Pacific Basin; hurricanes along the Atlantic and Gulf of Mexico
coasts; tornadoes in the midwest and southeast; mud slides in
California; forest fires in the west; flooding; permafrost in
northern Alaska, a major impediment to development
Uruguay
seasonally high winds (the pampero is a chilly and
occasional violent wind which blows north from the Argentine
pampas), droughts, floods; because of the absence of mountains,
which act as weather barriers, all locations are particularly
vulnerable to rapid changes from weather fronts
Uzbekistan
NA
Vanuatu
tropical cyclones or typhoons (January to April); volcanism
causes minor earthquakes; tsunamis
Venezuela
subject to floods, rockslides, mudslides; periodic droughts
Vietnam
occasional typhoons (May to January) with extensive
flooding, especially in the Mekong River delta
Virgin Islands
several hurricanes in recent years; frequent and
severe droughts and floods; occasional earthquakes
Wake Island
occasional typhoons
Wallis and Futuna
NA
West Bank
droughts
Western Sahara
hot, dry, dust/sand-laden sirocco wind can occur
during winter and spring; widespread harmattan haze exists 60% of
time, often severely restricting visibility
World
large areas subject to severe weather (tropical cyclones),
natural disasters (earthquakes, landslides, tsunamis, volcanic
eruptions)
Yemen
sandstorms and dust storms in summer
Zambia
periodic drought, tropical storms (November to April)
Zimbabwe
recurring droughts; floods and severe storms are rare