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Topography, bathymetry, and volcano monitoring network of the Manu‘a Islands, American Samoa

September 2022 (approx.)

Detailed Description

This reference map depicts the topography and bathymetry of the volcanoes in the Manu‘a Islands, American Samoa. The highest elevation in the area is Lata Mountain on Ta‘ū Island, standing 3,179 feet (969 meters) above sea level. The bathymetry data—courtesy of the National Oceanic and Atmospheric Administration (NOAA), Maxar/DigitalGlobe, and the University of Hawai‘i School of Ocean & Earth Science & Technology (SOEST)—depicts submarine topography in high-resolution down to 1,148 feet (350 meters) below sea level, and at coarser resolution to greater depths. A shallow submarine ridge extends to the northwest from Ta‘ū Island towards Olosega Island; it was along this ridge that a submarine eruption occurred in 1866. There are now 4 broadband seismometers (pink circles), 8 microseismometers (pink squares), and 2 GPS stations (blue stars) monitoring activity in the Manu‘a Islands.


Public Domain.