Turkey
severe earthquakes, especially in northern Turkey, along an
arc extending from the Sea of Marmara to Lake Van
volcanism: Turkey experiences little volcanic activity; its three
historically active volcanoes; Ararat, Nemrut Dagi, and Tendurek
Dagi have not erupted since the 19th century or earlier
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 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; 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
volcanism: the United States experiences volcanic activity in the
Hawaiian Islands, Western Alaska, the Pacific Northwest, and in the
Northern Mariana Islands; both Mauna Loa (elev. 4,170 m, 13,678 ft)
in Hawaii and Mount Rainier (elev. 4,392 m, 14,409 ft) in Washington
have been deemed "Decade Volcanoes" by the International Association
of Volcanology and Chemistry of the Earth's Interior, worthy of
study due to their explosive history and close proximity to human
populations; Pavlof (elev. 2,519 m, 8,264 ft) is the most active
volcano in Alaska's Aleutian Arc and poses a significant threat to
air travel since the area constitutes a major flight path between
North America and East Asia; St. Helens (elev. 2,549 m, 8,363 ft),
famous for the devastating 1980 eruption, remains active today;
numerous other historically active volcanoes exist, mostly
concentrated in the Aleutian arc and Hawaii; they include: in
Alaska: Aniakchak, Augustine, Chiginagak, Fourpeaked, Iliamna,
Katmai, Kupreanof, Martin, Novarupta, Redoubt, Spurr, Wrangell; in
Hawaii: Trident, Ugashik-Peulik, Ukinrek Maars, Veniaminof; in the
Northern Mariana Islands: Anatahan; and in the Pacific Northwest:
Mount Baker, Mount Hood
United States Pacific Island Wildlife Refuges
Baker, Howland, and
Jarvis Islands: the narrow fringing reef surrounding the island can
be a maritime hazard
Kingman Reef: wet or awash most of the time, maximum elevation of
less than 2 m makes Kingman Reef a maritime hazard
Midway Islands, Johnston, and Palmyra Atolls: NA