Blank relief location map of the <a href="https://en.wikipedia.org/wiki/Ryukyu_Islands" class="extiw" title="w:Ryukyu Islands">Ryukyu Islands</a>, aka Nansei Islands, <a href="https://en.wikipedia.org/wiki/Japan" class="extiw" title="w:Japan">Japan</a>.
Eric Gaba (<a href="//commons.wikimedia.org/wiki/User:Sting" title="User:Sting">Sting</a> - <a href="https://fr.wikipedia.org/wiki/Utilisateur:Sting" class="extiw" title="fr:Utilisateur:Sting">fr:Sting</a>)
CC BY-SA 4.0
<p><span class="int-own-work" lang="en">Own work</span><br>
Sources:
</p>
<ul><li>GEBCO_2021 Grid (public domain)</li>
<li>NGDC GSHHS (public domain)</li>
<li>Boundaries: <a href="//commons.wikimedia.org/wiki/File:Japan_location_map_zoom_south.svg" title="File:Japan location map zoom south.svg">File:Japan location map zoom south.svg</a></li></ul>