Mentawai Islands Regency


The Mentawai Islands Regency are a chain of about seventy islands and islets approximately off the western coast of Sumatra in Indonesia. They cover 6,011.35 sq2 and had a population of 76,173 at the 2010 Census and 85,156 at the 2015 Census; the latest official estimate is 93,070. Siberut at is the largest of the islands. The other major islands are Sipura, North Pagai and South Pagai. The islands lie off the Sumatran coast, across the Mentawai Strait. They cover The indigenous inhabitants of the islands are known as the Mentawai people. The Mentawai Islands have become a noted destination for surfing, with over 40 boats offering surf charters to international guests.

Administration

The Mentawai Islands have been administered as a regency within the West Sumatra province since 1999. The regency seat is Tua Pejat, on the island of Sipora. Padang, the capital of the province, lies on the Sumatran mainland opposite Siberut. The regency is divided into ten districts, tabulated below from south to north with their 2010 census populations and the 2013 estimates.
DistrictEnglish
Name		Area
in km2		Population
2010 Census		Population
2013 Estimate
Pagai SelatanSouth Pagai901.088,7829,106
SikakapCentral Pagai278.459,5319,544
Pagai UtaraNorth Pagai342.025,2125,452
Sipora SelatanSouth Sipora268.478,4608,653
Sipora UtaraNorth Sipora383.089,09711,579
Siberut SelatanSouth Siberut508.338,4469,296
Siberut Barat DayaSouthwest Siberut649.086,0696,368
Siberut TengahCentral Siberut739.876,0696,423
Siberut UtaraNorth Siberut816.117,7748,507
Siberut BaratWest Siberut1,124.866,7336,912
Totals6,011.3576,17381,840

Villages

listed for each district:
DistrictVillages
Pagai SelatanBulasat, Makalo, Malakopa, Sinaka
Pagai UtaraBetumonga, Saumanganya, Silabu
Siberut BaratSigapokna, Simalegi/Simaligi, Simatalu Sipokak
Siberut Barat DayaKaturai/Katurei, Pasakiat Taileleu, Sagulubbeg
Siberut SelatanMadobag, Maileppet/Maleppet, Matotonan, Muara/Muaro Siberut, Muntei
Siberut TengahCimpungan, Saibi Muara, Saliguma
Siberut UtaraBojakan, Malancan, Mongan Poula/Paula, Muara/Muaro Sikabaluan, Sirilogui, Sotboyak
SikakapMatobe, Sikakap, Taikako
Sipora SelatanBeriulou, Bosua, Mara, Matobe, Nemnemleleu, Saureinu, Sioban
Sipora UtaraBetumonga, Bukit Pamewa, Gosooinan, Sido Makmur, Sipora Jaya, Tuapejat

Tourism

Surfing

Throughout the Mentawai Islands, you can expect rugged untouched tropical wilderness and an extensive range of waves for surfers scattered along the reefs that surround the many islands. The peak season of surf is from April to October, which attracts hardcore surfers. While the fringe seasons can be hit or miss with swells, however, provides fewer crowds in the water and smaller surf for less capable surfers. The Mentawai Islands is a popular surf destination among most surfers.

Ecology

The islands have been separated from Sumatra since the mid-Pleistocene period, which has allowed at least twenty endemic species to develop amongst its flora and fauna. This includes six endemic primates: the Kloss's gibbon, Mentawai macaque, Siberut macaque, Mentawai langur, Siberut langur, and pig-tailed langur. They are highly endangered due to logging, unsustainable hunting, and conversion of rainforest to palm oil plantations. Some areas of the Mentawai Islands rainforest ecoregion are protected, such as the Siberut National Park. Red junglefowl, the Asian palm civet and crab-eating macaque are also native.

Seismic activity

The Mentawai Islands lie above the Sunda megathrust, a seismically active zone responsible for many great earthquakes. This megathrust runs along the southwestern side of Sumatra island, forming the interface between the Eurasian Plate and Indo-Australian Plate.
Earthquake and tsunami activity has been high since the 2004 Indian Ocean earthquake. In 1833, the region was hit with an earthquake, possibly similar in size to the 2004 Indian Ocean earthquake; another large earthquake struck in 1797. On October 25, 2010, an earthquake in southern Sumatra led to a deadly tsunami that devastated villages in South and North Pagai. On March 3, 2016, an earthquake of 7.8 magnitude occurred off the Indian Ocean, a few hundred kilometres from Mentawai islands, as a result of strike-slip faulting within the oceanic lithosphere of the Indo-Australia plate.