Tepuka is an island 18 kilometers west of Fongafale

Fongafale

Fongafale is the largest of Funafuti's islets in Tuvalu. It's a long snake-like sliver of land, 12 kilometres long and between 10 and 400 metres wide, with the South Pacific Ocean on the east and the protected lagoon on the west.The airstrip runs from northeast to southwest on the widest part of...

, in the northwest of Funafuti

Funafuti

Funafuti is an atoll that forms the capital of the island nation of Tuvalu. It has a population of 4,492 , making it the most populated atoll in the country. It is a narrow sweep of land between 20 and 400 metres wide, encircling a large lagoon 18 km long and 14 km wide, with a surface of...

, the main atoll of the Oceania

Oceania

Oceania is a region centered on the islands of the tropical Pacific Ocean. Conceptions of what constitutes Oceania range from the coral atolls and volcanic islands of the South Pacific to the entire insular region between Asia and the Americas, including Australasia and the Malay Archipelago...

n island nation of Tuvalu

Tuvalu

Tuvalu , formerly known as the Ellice Islands, is a Polynesian island nation located in the Pacific Ocean, midway between Hawaii and Australia. Its nearest neighbours are Kiribati, Nauru, Samoa and Fiji. It comprises four reef islands and five true atolls...

. There is a well-preserved underground bunker on the island. The island lies between the smaller islet of Tepuka Vili Vili

Tepuka Vili Vili

Tepuka Vili Vili is an isle of Funafuti, Tuvalu.Tepuka Vili Vili is part of the Funafuti Conservation Area, established in 1996 with the aim of preserving the natural fauna and flora of the area....

 in the southwest, the smaller islet of Te Afualiku

Te Afualiku

-References:...

 in the northeast, the Pacific Ocean

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

 on the west and the Funafuti lagoon called Te Namo on the east. In recent years the island has suffered from major erosion

Erosion

Erosion is when materials are removed from the surface and changed into something else. It only works by hydraulic actions and transport of solids in the natural environment, and leads to the deposition of these materials elsewhere...

.