The Moro Gulf
is a gulf
in the Philippines
. It is part of Celebes Sea
and is surrounded by the Zamboanga Peninsula
and the central part of Mindanao. Sibuguey Bay
and Illana Bay
are its major branches. Zamboanga City
is the most important port city on its coast. Cotabato City
, on the eastern coast, is another major port.
The Moro Gulf is also an area of significant tectonic activity with several fault zones in the region capable of producing major earthquakes and destructive local tsunamis, such as the devastating 1976 Moro Gulf Earthquake which killed over 5,000 people and left over 90,000 people homeless as it hit the coast of Mindanao.