Spain
periodic droughts, occasional flooding
volcanism: Spain experiences volcanic activity in the Canary
Islands, located off Africa's northwest coast; Teide (elev. 3,715 m,
12,188 ft) 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; La Palma (elev. 2,426 m, 7,959 ft), which last
erupted in 1971, is the most active of the Canary Islands volcanoes;
Lanzarote is the only other historically active volcano
Spratly Islands
typhoons; numerous reefs and shoals pose a serious
maritime hazard
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
volcanism: Syria's two historically active volcanoes, Es Safa and an
unnamed volcano near the Turkish border have not erupted in centuries