Ofu-Olosega, Twin volcanic islands in Manu'a District, United States
Ofu and Olosega islands cover 12 square kilometers, featuring Mount Piumafua at 629 meters and Mount Tumutumu at 491 meters above sea level.
Archaeological discoveries from the 1980s on Ofu island revealed ceramics, tools, and artifacts indicating continuous human habitation for 3000 years.
The National Park of American Samoa incorporates the southern shore and coral reefs, preserving natural and traditional elements of these Pacific islands.
A single-lane bridge constructed in 1970 connects both islands across the 137-meter Asaga Strait, replacing the previous low-tide crossing method.
The submarine ridge near Olosega experienced its last volcanic eruption in 1866, with no recorded volcanic activity since that time.
Location: Manuʻa District
Elevation above the sea: 639 m
GPS coordinates: -14.16667,-169.61667
Latest update: May 11, 2025 19:54
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