Global Volcanism Program | Image GVP-10694
The capital city of San Salvador extends across much of this photo taken from the International Space Station (with north to the bottom) and encroaches on the flanks of San Salvador volcano. The Boquerón crater is 1.5 km wide and lies within a late-Pleistocene crater whose eastern wall is shown by the shadow to the left. The dark area to the bottom right is a flank lava flow produced during the 1917 eruption.
NASA International Space Station image ISS001-E-5903, 2001 (http://eol.jsc.nasa.gov/).
This image is made available as a Public Domain Work, but proper attribution is appreciated.