Subaşı is a belde ( town ) in Altınova district of Yalova Province , Turkey . Situated at it is close to Hersek Headland of Marmara Sea and has almost merged to Altınova to the east . The distance to Yalova is . The population of Subaşı is 5459 as of 2010 . The name of the village refers to subaşı , a title in the Ottoman bureaucracy and the residents of the town are mostly Turkish migrants who were expelled from Bulgaria in 1935 . The settlement was declared a seat of township in 1992 . But it suffered severely in the 7.6 magnitude 1999 İzmit earthquake
1999 İzmit earthquake
1999 İzmit earthquake
Subaşı, Yalova