11.75 N, 80.75 E
The volcano in located 156 km SE of Chennai, and 100 km east of Pondicherry. A submarine eruption was reported in 1757, but its existance has not been confirmed.
The eruption was reported from a passenger on board a passing ship.
" Just before we sailed from Pondicherry, fires broke out on the surface of the sea three leagues from that place, with the utmost impetuosity, throwing up pumicestones, and other combustables and forming an island of a league long..."