This map was created by making use of the <a rel="nofollow" class="external text" href="http://vents-data.interridge.org/">InterRidge ver.3.3 database</a>.
<a href="//commons.wikimedia.org/wiki/User:DeDuijn" title="User:DeDuijn">DeDuijn</a>
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<span class="int-own-work" lang="en">Own work</span>