Green Island (; POJ: Le̍k-tó) is a small volcanic island in the Pacific Ocean, about 33 km (20.5 miles) off the eastern coast of Taiwan. In the 19th century it was known as Samasana Island and the Japanese called it Kasho-to (火燒島). The island is 15.092 km² at high tide and 17.329 km² at low tide. Administratively, Green Island i...