The territory of Turkey extends from 36° to 42° N and from 26° to 45° E in Eurasia. It is roughly rectangular in shape and is 1,660 kilometers (1,031 mi) wide. Turkey's area inclusive of lakes is 814,578 square kilometres (314,510 sq mi), of which 790,200 square kilometres (305,098 sq mi) occupies the Anatolian peninsula (also called Asia Minor) in Asia, and 3% or 24,378 square kilometres (9,412 sq mi) are located in Europe. Many geographers consider Turkey politically in Europe, although it is rather a transcontinental country between Asia and Europe. The land borders of Turkey total 2,573 kilometres (1,599 mi), and the coastlines (including islands) total another 8,333 kilometres (5,178 mi).
Turkey is generally divided into seven regions: the Marmara, the Aegean, the Mediterranean, Central Anatolia, East Anatolia, Southeast Anatolia and the Black Sea region. The uneven north Anatolian terrain running along the Black Sea resembles a long, narrow belt. This region comprises approximately 1/6 of Turkey's total land area. As a general trend, the inland Anatolian plateau becomes increasingly rugged as it progresses eastward.

Turkey forms a bridge between Europe and Asia, with the division between the two running from the Black Sea (Karadeniz) to the north down along the Bosporus (Istanbul Boğazı) strait through the Sea of Marmara (Marmara Denizi) and the Dardanelles (Çanakkale Boğazı) strait to the Aegean Sea (Ege Denizi) and the larger Mediterranean Sea (Akdeniz) to the south. The Anatolian peninsula or Anatolia (Anadolu) consists of a high central plateau with narrow coastal plains, in between the Köroğlu and East-Black Sea mountain range to the north and the Taurus Mountains (Toros Dağları) to the south. To the east is found a more mountainous landscape, home to the sources of rivers such as the Euphrates (Fırat), Tigris (Dicle) and the Araks (Aras), as well as Lake Van (Van Gölü) and Mount Ararat (Ağrı Dağı), Turkey's highest point at 5,137 metres (16,853 ft).

Turkey is also prone to very severe earthquakes. The Bosphorus and the Dardanelles owe their existence to the fault lines running through Turkey, leading to the creation of the Black Sea. There is an earthquake fault line across the north of the country from west to east. Within the last century there were many earthquakes along this fault line, the sizes and locations of these earthquakes can be seen on the Fault lines & Earthquakes image. This image also includes a small scaled map that shows other fault lines in Turkey.

The climate is a Mediterranean temperate climate, with hot, dry summers and mild, wet and cold winters, though conditions can be much harsher in the more arid interior.

(Source:http://dis.comu.edu.tr/yogrenci/turkey.htm)