Kingman Reef

Kingman Reef is in the North Pacific Ocean.

It sits between Hawaii and American Samoa. It is shaped like a triangle.

Most of the reef is under the water. Only tiny strips of land stay above. These small parts are made of coral.

Many sea animals live in the water. There are hundreds of kinds of fish. There is also a lot of coral.

Sharks are very common in the reef. They are top hunters in the sea. This makes the reef a busy place.

It is a special place for nature. The United States protects it today.

Kingman Reef is in the North Pacific Ocean.

It sits halfway between the Hawaiian Islands and American Samoa. The reef has a triangle shape. Most of it stays under the water. Only two tiny strips of land stay above the sea. These strips are made of coral rubble and clam shells.

The reef is a very busy place for sea life. There are hundreds of kinds of fish and coral. Many types of stony coral live here. This is more than three times the amount found in Hawaii.

Many sharks live in these waters. They are top hunters in the reef. This makes the food chain very active. Green sea turtles also visit the reef to eat and rest.

In the past, planes used the reef to stop during long flights. Today, the United States protects it. It is a national wildlife refuge. This helps keep the ocean life safe.

Kingman Reef is a unique place in the North Pacific Ocean.

It is shaped like a triangle and sits halfway between Hawaii and American Samoa. Most of the reef stays under the water. Only two tiny strips of land sit above the sea.

These strips are made of coral rubble and giant clamshells. The reef is part of the United States and is managed as a national wildlife refuge.

The reef is a very busy home for many living things. There are about 130 species of stony coral living on the reef. This is three times more than what you find in the main Hawaiian Islands.

The ocean life here is mostly made of top hunters. Sharks make up 74% of the top predators in the water.

Green sea turtles also visit the reef to eat and rest on the coral.

People have known about this reef for a long time. An American captain named Edmund Fanning found it in 1798.

Later, Captain W. E. Kingman described it in 1853. In the 1800s, sailors called it "Hazard Rocks." This was because the reef could be dangerous for ships.

One British steamship even hit the reef in 1874. The United States claimed the area in 1859 under the Guano Islands Act.

In the 1930s, the reef was used by flying boats.

Pan American Airways used the lagoon as a stopover for planes. They wanted to fly between the U.S. and New Zealand. A ship named the North Wind stayed there to provide fuel and food. In 1937, a plane called the Samoan Clipper was the first to land in the lagoon. However, a sad accident with a plane in 1938 changed the flight paths forever. The Navy took control of the reef in 1934 and kept it until 2000.

Today, Kingman Reef is a protected area for nature.

It is part of a large marine national monument. This helps keep the hundreds of fish and coral species safe from harm. Even though it is remote, people still find ways to connect with it. Amateur radio operators sometimes visit for special trips. They use radio equipment to talk to people all over the world. It is a small but very important part of our ocean.

Kingman Reef is a largely submerged, triangle-shaped atoll located in the North Pacific Ocean.

It sits roughly halfway between the Hawaiian Islands and American Samoa. Geologically, it is an atoll, which is a ring-shaped coral reef. The reef encloses a lagoon that reaches deep into its eastern part. It is an unincorporated territory of the United States. The reef is currently managed as the Kingman Reef National Wildlife Refuge.

This status helps protect its unique environment.

The physical structure of the reef is quite small in terms of dry land. The total area of the reef is 3 hectares, which is about 0.03 square kilometers. There are only two small strips, or spits, of dry land on the eastern rim. These spits consist of coral rubble and giant clamshells. One spit is on the northeast side of the lagoon. The other spit is twice as long but thinner on the south side. The highest point on the reef is less than one meter above sea level. Because it is often wet or awash, the reef is considered a maritime hazard.

Marine life at Kingman Reef is incredibly diverse and complex. The reef supports approximately 130 species of stony corals. This is more than three times the species diversity found in the main Hawaiian Islands.

The ecosystem is unique because it is primarily predator-based. This means there is a high level of competition for food and nutrients. Apex predators, which are animals at the very top of the food chain, make up 85% of the total fish biomass. Sharks are a major part of this group, comprising 74% of the top predator biomass. Other carnivores like jacks also play a large role. Even threatened green sea turtles visit the reef to forage and bask on the coral rubble.

The history of the reef involves many different names and explorers. American captain Edmund Fanning discovered it on June 14, 1798. Captain W. E. Kingman later described it in 1853, and the reef now bears his name. In the 19th century, it was known as Hazard Rocks because it was dangerous for ships. The British steamship Tarta struck the reef in June 1874. The United States Guano Company claimed the area in 1859 under the U.S. Guano Islands Act. They originally called it "Dangers Rock." However, there is no evidence that guano was ever actually mined there.

In the 20th century, the reef saw more direct human activity. On May 10, 1922, Lorrin A. Thurston raised the American flag to formally claim the reef. In 1934, the U.S. Navy assumed jurisdiction over the area. During the 1930s, Pan American Airways used the lagoon as a stopover for flying boats. These planes traveled between the U.S. and New Zealand. A supply ship named the North Wind provided fuel and meals for the crews. On March 23, 1937, the Samoan Clipper became the first plane to land in the lagoon.

This era ended after a tragic accident in 1938 when a plane exploded during takeoff.

Today, the reef is a highly protected marine environment. In 2001, it was officially created as a National Wildlife Refuge. In 2009, it was upgraded to a marine national monument. This designation helps preserve the hundreds of fish and coral species. The reef is now part of the Pacific Islands Heritage Marine National Monument. It is closed to the public to ensure the ecosystem remains undisturbed.

This protection is vital because the reef has no natural resources for economic activity. It exists primarily as a sanctuary for marine biodiversity.

Despite its isolation, humans still interact with the reef in small ways. Amateur radio operators sometimes conduct DX-peditions to the site. These are trips where operators set up temporary stations to communicate with people worldwide. In October 2000, a group made over 80,000 individual radio contacts in just ten days. This shows that even a remote, submerged reef can connect to the global community. The reef remains a significant site for studying ocean health and predator-based ecosystems.