Geography of Atarashima

Atarashima is a small, heavily urbanised, island city-state in East Asia, located at west of Taipei between Taiwan and China. Atarashima has a total land area of 1284 km². The Atarashima area comprises mainland and other islands.

Atarashima is separated from China by the East China Sea and from Taiwan by the Strait of Amaterasu.

Physical geography
Atarashima consists of 89 islands, including the main island, widely known as Atarashima Island but also as Dǎoshàng Atarashima. There is one man-made connection to Taipei, Taiwan: the Harmony Tollway (consisting of Harmony Causeway and Harmony Bridge) which crosses the Strait of Amaterasu. Mid City Island is the largest of Atarashima's smaller islands and Downtown is also located on Mid City Island. Most of the undeveloped land in Atarashima is in the north districts like Headlands and parts of Peninsula. The highest natural point is Mount Lushan at 186 m.

There are ongoing land reclamation projects, which have increased Atarashima's land area from 1049.5 km² in the 1950s to 1284 km² today; it may grow by another 100 km² by 2030.

Climate of Atarashima
Atarashima lies on the Tropic of Cancer, and its climate is marine tropical.The island has a rainy season that lasts from January through late March during the monsoon season, and experiences tsuyu in May. It also experiences hot, humid weather from June through September. Typhoons are common between July and October.

Seismic activity
Atarashima usually has active seismic activity in the region, as the nearest fault line is in Taiwan. However, the population and buildings are prone to being only very slightly affected by any activity and generally does not do any harm and is limited to small amounts of swaying or vibration of objects. This is a sharp contrast to its seismically active neighbour.