Tula is the easternmost village on Tutuila Island, and is situated on the rugged northeast cape of Matātula. It is home to wide, white sand beaches and a prehistoric
quarry. The
Samoa Observatory, established in 1974 by
National Oceanic and Atmospheric Administration (NOAA), sits on Cape Matātula just outside the village of Tula.
NASA's Advanced Global Atmospheric Gases Experiment (AGAGE) measures more than 40
trace gases involved in stratospheric
ozone depletion,
climate change, and
air quality at the observatory. Cape Matā'ula and the nearby village of
Onenoa feature small plantations, high cliffs, and forested slopes. Since 1961, American Samoa has witnessed significant changes in its wetlands across different regions. Wetlands in Tula have experienced an 8-acre decrease since 1961, amounting to a 58% loss.
Geology Tula is closely associated with the geological features of the
Olomoana Volcano. The volcanic rocks in this region consist predominantly of
olivine basalts, which are geographically limited in extent. Geological studies suggest that these formations resulted from volcanic activity on the northeast rift of the nearby
Ālōfau Volcano during the final stages of
Pliocene volcanic activity on the island. Evidence of this contemporaneous activity includes the overlapping of Ālōfau volcanic flows on the western slope of the Olomoana volcanic cone. The Olomoana volcanic system spans approximately 2.4 square kilometers and dominates the landscape surrounding the peak near Tula. Notable geological features include several intrusive
volcanic plugs, crater fills, and cinder cones, prominently exposed along the eastern coastline. Cape Matatula, within the vicinity of Tula, is recognized as the largest intrusive volcanic plug in the area. This region is characterized by interbedded flows and palagonitized vitric tuffs. Additionally, the Lefulufulu'a trachyte plug intrudes through these layers, adding to the complex geological history of the area. A large, partially exhumed cinder cone is visible in the stream bed that drains towards Tula, offering further insight into the region's volcanic heritage. ==Demographics==