The Banda Sea is one of four seas that surround the Maluku Islands of Indonesia, connected to the Pacific Ocean, but surrounded by hundreds of islands, including Timor, as well as the Halmahera and Ceram Seas. From Wikipedia
Quakes were the second and third in a series within a day hitting the far-off coast, with no tsunami warning following due to their offshore epicenters; residents report no panic as seismic events are common on the Pacific "Ring of Fire".