Sea of Marmara

Sea of Marmara
Marmara Denizi (Turkish)
Sea of Marmara is located in Turkey
Sea of Marmara
Sea of Marmara
Location of the Sea of Marmara within Turkey
Bathymetry and surrounding relief
LocationSouthern Europe and West Asia
Coordinates40°40′N 28°00′E / 40.667°N 28.000°E / 40.667; 28.000
TypeInland sea
Primary inflowsSimav River, Biga Çayı, Nilüfer River
Primary outflowsTurkish Straits
Catchment area11,500 km2 (4,400 sq mi)
Basin countriesTurkey
Surface area11,350 km2 (4,380 sq mi)
Average depth494 m (1,621 ft)
Max. depth1,370 m (4,490 ft)
Water volume3,378 km3 (810 cu mi)
IslandsMarmara Island, Avşa, İmralı, Prince Islands, Paşalimanı and Ekinlik Island
SettlementsIstanbul, Bursa, İzmit, Tekirdağ, Balıkesir, Çanakkale, and Yalova
Satellite image of the Sea of Marmara
Algal bloom on the Sea of Marmara
Satellite image showing metropolitan İzmit along northern and eastern shores

The Sea of Marmara,[a] also known as the Sea of Marmora or the Marmara Sea, is a small inland sea located entirely within the borders of Turkey. It connects the Black Sea to the Aegean Sea via the Bosporus and Dardanelles straits, separating Turkey’s European and Asian sides. It has an area of 11,350 km2 (4,380 sq mi), and its dimensions are 280 km × 80 km (174 mi × 50 mi).[1] Its greatest depth is 1,370 m (4,490 ft).


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  1. ^ "Marmara, Sea of - Dictionary definition of Marmara, Sea of - Encyclopedia.com: FREE online dictionary". www.encyclopedia.com. Retrieved 3 January 2018.