Moro Gulf

The Moro Gulf is the largest gulf in the Philippines. It located off the coast of Mindanao Island, and is part of the Celebes Sea. The gulf is one of the country's tuna fishing grounds.[1]

Moro Gulf
Lebak View
The gulf seen from Lebak
Moro Gulf is located in Mindanao
Moro Gulf
Moro Gulf
Location within the Philippines
Moro Gulf is located in Philippines
Moro Gulf
Moro Gulf
Moro Gulf (Philippines)
LocationMindanao Island
Coordinates6°51′00″N 123°00′00″E / 6.8500°N 123.0000°ECoordinates: 6°51′00″N 123°00′00″E / 6.8500°N 123.0000°E
Part ofCelebes Sea


The gulf stretches between and is surrounded by the main section of Mindanao on the east, and the Zamboanga Peninsula of Mindanao on the west. The peninsula's major drainage goes towards the gulf.[2]

Sibuguey Bay and Illana Bay are its major bays.

Zamboanga City, which is an international port, is bound by the Gulf and Celebes Sea in the East.[3] 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 west coast of Mindanao.

Earthquakes in Mindanao
Moro Gulf
Moro Gulf
The two largest 20th century Philippine earthquakes: the 1918 Celebes Sea earthquake (8.3 Mw) and the 1976 Moro Gulf earthquake (8.0 Mw). The relatively large 2002 Mindanao earthquake (7.5 Mw) also occurred in the area. The Moro Gulf, part of the Celebes Sea, is labeled for context.

See also


  1. ^ Barut, Noel. "National Tuna Fishery Report - Philippines" (PDF). School of Ocean and Earth Science and Technology. Marine Fisheries Research Division National Fisheries Research and Development Institute. Retrieved 4 May 2015.
  2. ^ Carating, Rodelio B. (2014). Soils of the Philippines: World soils book series. Springer Science & Business. p. 61. ISBN 9401786828. Retrieved 4 May 2015.
  3. ^ "ZAMBOANGA PENINSULA". Department of Environment and Natural Resources. Retrieved 4 May 2015.
1918 Celebes Sea earthquake

The 1918 Celebes Sea earthquake occurred on 15 August at 12:18 UTC. It had a magnitude of 8.3 on the moment magnitude scale and a maximum perceived intensity of X (Extreme) on the Mercalli intensity scale.

This event in the southern Philippines triggered a large tsunami, with a maximum run-up of 7.2 m, which affected the coasts of the Celebes Sea, causing widespread damage. The combined effects of the earthquake and the tsunami caused 52 casualties.

1976 Moro Gulf earthquake

The 1976 Moro Gulf earthquake and tsunami took place on August 17 at 00:11 local time near the islands of Mindanao and Sulu, in the Philippines. Its magnitude was calculated as being as high as 8.0 on the moment magnitude scale.

1976 in the Philippines

1976 in the Philippines details events of note that happened in the Philippines in the year 1976.

2002 Mindanao earthquake

The 2002 Mindanao earthquake struck the Philippines at 05:16 Philippine Standard Time on March 6 (21:16 Coordinated Universal Time on March 5). The world's sixth most powerful earthquake of the year, it registered a magnitude of 7.5 and was a megathrust earthquake. It originated near the Cotabato Trench, a zone of deformation situated between the Philippine Sea Plate and the Sunda Plate, and occurred very near to the Philippines' strongest earthquake for the 20th century, the 1918 Celebes Sea earthquake.

The entire country is characterized by a high level of volcanic and seismic activity. The earthquake was responsible for 15 deaths and roughly 100 injuries. Up to 800 buildings were damaged as a result, many from a flood generated by landslides and falling debris. Like the 1918 event, a tsunami soon followed.

2010 Mindanao earthquakes

The 2010 Mindanao earthquakes occurred in the southern Philippines in the Moro Gulf. This was a complex sequence of events including three man events (a triplet earthquake) of Mw magnitude 7.3 or greater on the 23rd of July, and two significant aftershocks of magnitude 6.6 on the 24th and 29th. All of these were deep focus earthquakes, at depths from 565 km (351 mi) to 634 km (394 mi). This results in minimal shaking at the surface; consequently there were no reports of casualties or damage.

Dumanquilas Bay

Dumanquilas Bay (alternatively spelled Dumanguilas Bay) is an arm of the Moro Gulf on the southern side of the Zamboanga Peninsula in western Mindanao island in the Philippines. It is shared between the provinces of Zamboanga del Sur on the eastern and northern shore, and Zamboanga Sibugay on the western shore. An irregularly shaped peninsula extending to Flecha Point separates it from Pagadian Bay to the east, while to the west, the bay connects with Sibuguey Bay through Canalizo Strait which separates Olutanga island from the mainland of Zamboanga. Politically, it is divided between the Zamboanga del Sur municipalities of Margosatubig, Vincenzo Sagun, Lapuyan and Kumalarang, and the Zamboangay Sibugay municipalities of Buug, Malangas and Alicia.

The bay is the location of the Malangas Wharf, the shipping point for the Malangas Coal Reservation. It is known for its extensive mangrove shorelines and rich coral and fish diversity.

It has been declared a marine protected area known as the Dumanquilas Bay Protected Landscape and Seascape in 1999.

Illana Bay

Illana Bay (Iranun Bay) is a large bay of the Moro Gulf, off the southwestern coast of Mindanao island in the Philippines.

Illana Bay and Moro Gulf form part of the Celebes Sea.

Iranun people

The Iranun are a Moro ethnic group native to Mindanao, Philippines, and the west coast of Sabah (in which they are found in 25 villages around the Kota Belud and Lahad Datu districts; also in Kudat and Likas, Kota Kinabalu).

For centuries, the Iranun were involved in pirate-related occupations in the Malay world. Lanun means pirate in Malay language. Originally from the Sultanate of Maguindanao, in southern Mindanao, Iranun colonies spread throughout Mindanao, the Sulu Archipelago and the north and east coast of Borneo. Most Iranuns are Muslim. Their language is part of the Austronesian family, and is most closely related to the Maranao people of Lanao. Historically, the Iranun were given the exonym Illanun during the British colonial era. The Malay term Lanun or pirate originated from the exonym.

In the case of inter-marriages of an Iranun woman and an outsider man, the cultural influences of the woman's family will be more dominant that the outsider man would be considered as an Iranun man; although in a lot cases this does not happen.The language of the Maranao and Maguindanao is strongly rooted in the Iranun tongue. The Iranun may perhaps be the mother language and the rest are just a mere dialects. For several centuries, the Iranuns in the Philippines formed part of the Sultanate of Maguindanao. In the past, the seat of the Maguindanao Sultanate was situated at Lamitan and Malabang. Both of which were the strongholds of the Iranun society. Iranuns fought the Western invaders under the flag of the Maguindanao Sultanate. They formed part of the Moro resistance against the USA occupation of the Philippines from 1899 to 1913. The Iranun were excellent in maritime activity as they are traditionally sailors and pirates. They used to ply the route connecting the Sulu Sea, Moro Gulf to Celebes Sea, and raided the Spanish held territories along the way.

List of earthquakes in the Philippines

The Philippines lies along the Pacific Ring of Fire, which causes the country to have frequent seismic and volcanic activity. Many earthquakes of smaller magnitude occur very regularly due to the meeting of major tectonic plates in the region. The largest was the 1918 Celebes Sea earthquake with Mw 8.3.

List of islands of Zamboanga City

Zamboanga City contains 28 islands off the mainland coast. The largest is Sacol (about 12 km long and 8 km wide). Three of them, (Vitali, Malanipa, and Sacol) are inhabited mostly by fishing residents and have their own barangays. The others are not regularly inhabited, but frequented by fishermen and scuba divers. A group of 11 islands located on the Moro Gulf coast are known collectively as the Eleven Islands, Cabugan Island (approx. 11 hectares) is the largest of them. The most popular islands among both tourists and local residents are the Great and Little Santa Cruz Islands, known for pink coral sands, and rich in coral, shell varieties.

, and sea life.

The islands are:

Bacungan Island

Baong Island

Bobo Island

Buguias Island

Cabog Island

Camugan Island

Gatusan Island

Great Santa Cruz Island

Kablingan Island

Lambang Island

Lamunigan Island

Lapinigan Island

Little Malanipa Island

Little Santa Cruz Island

Malanipa Island

Panganaban Island

Pangapuyan Island

Pitas Island

Sacol Island

Salangan Island

Sinunug Island

Taguiti Island

Tictabon Island

Tigburacao Island

Tumalutap Island

Vilan Vilan Island

Visa Island

Vitali Island

List of ports in the Philippines

The following is a list of major ports in the Philippines organized by water mass.

This list consists primarily of shipping ports, but also includes some that are primarily or significantly devoted to other purposes: cruises, fishing, local delivery, and marinas.

List of records of the Philippines

List of records of the Philippines is an annotated list of Philippine records organised by category.


Olutanga is a Philippine island in the Moro Gulf, part of Zamboanga Sibugay Province. It is separated from the Zamboanga Peninsula by a narrow channel and Tantanang Bay.

Olutanga, with an area of 194.1 square kilometres (74.9 sq mi), is the largest island in the Moro Gulf and the 34th largest island of the Philippines. It has a shoreline length of 89.8 kilometres (55.8 mi).The island is subdivided into 3 municipalities (Mabuhay, Talusan, and the namesake Olutanga), and has a total population of 87,078 people.


Sacol is an island in Zamboanga City, Philippines.

Sibuguey Bay

Sibuguey Bay is a large bay of the Moro Gulf, situated off the southwestern coast of Mindanao Island in the Philippines.The bay bounds the southern coast of the Zamboanga Peninsula. Along with the Moro Gulf, the bay forms part of the Celebes Sea.

Visayan Sea

The Visayan Sea is a sea in the Philippines surrounded by the islands of the Visayas: Western Visayas, Eastern Visayas, and Central Visayas to the south. It is bounded by the islands Masbate to the north, Panay to the west, Leyte to the east, and Cebu & Negros to the south.

The sea is connected to the Sibuyan Sea to the northwest via the Jintotolo Channel, the Samar Sea to the northeast, the Panay Gulf (part of the Sulu Sea) to the southwest via the Guimaras Strait, and the Camotes Sea to the southeast.

The largest island within this sea is Bantayan Island of Cebu province.

Zamboanga Peninsula (landmass)

The Zamboanga Peninsula is a peninsula of Mindanao, the second largest island in the Philippines. It is a large, semi-circular peninsula located in northwestern Mindanao, forming the Moro Gulf and part of the border between the Sulu Sea and Celebes Sea. Politically, the majority of the Zamboanga Peninsula belongs to the administrative region of Zamboanga Peninsula (Region IX), and a minority belongs to Northern Mindanao (Region X).

The Zamboanga Peninsula is notable as the home of the Zamboangueño people, a creole people and speakers of Chavacano, the only Spanish-based creole language in Asia, as well as the homeland of the Subanen people.

Zamboanga Sibugay

Zamboanga Sibugay (Cebuano: Lalawigan sa Zamboanga Sibugay; Chavacano: Provincia de Zamboanga Sibugay) is a province in the Philippines located in the Zamboanga Peninsula region in Mindanao. Its capital is Ipil and it borders Zamboanga del Norte to the north, Zamboanga del Sur to the east and Zamboanga City to the southwest. To the south lies Sibuguey Bay in the Moro Gulf.

Zamboanga Sibugay is the 79th province created in the Philippines, when its territories were carved out from the third district of Zamboanga del Sur in 2001. Hence it the fourth newest province, being before now-defunct Shariff Kabunsuan (October 2006), Dinagat Islands (December 2006) and Davao Occidental (2013).

Zamboanga del Sur

Zamboanga del Sur (Cebuano: Habagatang Zamboanga; Subanen: S'helatan Sembwangan/Sembwangan dapit Shelatan) is a province in the Philippines located in the Zamboanga Peninsula region in Mindanao. Its capital is the city of Pagadian. Incorrectly grouped with Zamboanga del Sur is the highly urbanized city of Zamboanga, which is a chartered city and governed independently from the province.

The province borders Zamboanga del Norte to the north, Zamboanga Sibugay to the west, Misamis Occidental to the northeast, and Lanao del Norte to the east. To the south is the Moro Gulf.

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