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Samoan Islands

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The Samoan Islands are an archipelago located in the central South Pacific Ocean. They form a vital part of Polynesia and the wider region of Oceania. This group of 18 islands is split into two different political jurisdictions. The western part is the Independent State of Samoa. The eastern part is the unincorporated territory of American Samoa.

Samoa Country map
Samoa Country map

Although they share much in common, they are separated by ocean water. Together, these islands are home to approximately 250,000 people.

Geologically, the islands have a fascinating and complex origin. Most scientists believe they were formed by a volcanic hotspot. A hotspot is a deep, narrow mantle plume that spews heat through the Earth's crust.

Hotspot(geology)-1
Hotspot(geology)-1

As the Pacific tectonic plate moves over this fixed heat source, volcanoes form on the surface. This process usually creates a chain of islands that get older as they move away from the hotspot. For a long time, the Samoan Islands presented an enigma to researchers. Some rock samples from the western island of Savai'i seemed too young to fit this model. However, an international team found older submarine samples in 2005. These deep-sea samples were about five million years old, which supports the hotspot theory.

Kermadec Arc
Kermadec Arc

The archipelago contains many different types of landforms. The larger islands are volcanic in origin and very mountainous. They are often covered in thick, tropical moist forests. For example, Savai'i is the largest landmass in the group. It is also home to Mt. Silisili, which is 6,850 feet tall. This is one of the highest peaks in all of Polynesia. In contrast, some smaller islands are coral atolls. These atolls often feature black sand beaches. The islands also include submerged features like the Vailulu'u Seamount. This is an active underwater volcano located east of Ta'u. Inside its crater, an active volcanic cone grows, named after the goddess Nafanua.

History shows that human activity in the islands dates back a very long time. The oldest known evidence of people living there is from around 1050 BC. This was found at a Lapita site on Upolu island. In 1768, the French explorer Bougainville visited the eastern islands. He named them the Navigator Islands. This name was used by missionaries and in European dispatches for many years.

Later, in the late 19th century, different nations competed for control of the area. This competition involved the United States, Germany, and the United Kingdom.

This political competition led to a major change in 1899. The Tripartite Convention was signed in Washington on December 2, 1899. This agreement formally partitioned the archipelago into two parts. The western islands became a German colony known as German Samoa. The eastern islands became a United States territory.

German, British, American warships in Apia harbour, Samoa 1899
German, British, American warships in Apia harbour, Samoa 1899

Following World War I, New Zealand began occupying the western islands. They governed the area under a League of Nations Class C Mandate until 1946. Later, it became a United Nations Trust Territory. Eventually, the pro-independence Mau movement helped lead the western islands to full independence in 1962.

Today, the two jurisdictions have different systems and capitals. The Independent State of Samoa has its capital in Apia. Its official currency is the Samoan tala. It has about 196,000 inhabitants as of 2016. American Samoa has its capital in Pago Pago. It uses the United States dollar as its currency. Its population was approximately 49,710 in 2020.

US -American Samoa
US -American Samoa

The islands are also known for their unique cultural identity. Most inhabitants share the Samoan language and a culture called fa'a Samoa. They also follow an indigenous form of governance known as fa'amatai.

The islands also have a unique relationship with time. In 1892, the islands shifted to the eastern side of the International Date Line. This was done to help increase trade with the United States. However, in 2011, the government of independent Samoa decided to shift back. They moved to the western side of the line to align with their main trading partners. This change meant that they skipped Friday, December 30, to move forward in time. This shift helped them stay on the same day as Australia and New Zealand.

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🖼️ Images & Media (6)
File:German, British, American warships in Apia harbour, Samoa 1899.jpg
German, British, American warships in...
File:Samoa Country map.png
Samoa Country map.png
File:US -American Samoa.png
US -American Samoa.png
File:A Manaia, son of a Samoan matai photo Andrew.Thomas.jpg
A Manaia, son of a Samoan matai photo...
File:Hotspot(geology)-1.svg
Hotspot(geology)-1.svg
File:Kermadec Arc.jpg
Kermadec Arc.jpg
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