Clouds drape the tops of the two islands of Ofu (left) and Olosega (right) in eastern Samoa in this International Space Station image (N is to the top left). The islands, 6 km in combined length, are separated by a narrow strait. They are formed by two eroded, coalescing basaltic shield volcanoes truncated by mostly-submarine calderas. A submarine eruption took place in 1866 about 3 km SE of Olosega, along the ridge connecting Olosega with Ta'u Island.

NASA International Space Station image ISS002-E-6878, 2001 (http://eol.jsc.nasa.gov/).

This image is made available as a Public Domain Work, but proper attribution is appreciated.

Keywords: island volcano

Ofu-Olosega