The eruption of <a href="https://en.wikipedia.org/wiki/Novarupta" id="mwqw" rel="mw:WikiLink" title="Novarupta">Novarupta</a> in Alaska begins. It is the largest <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Volcanic" id="mwrA" rel="mw:WikiLink" title="Volcanic">volcanic</a> eruption of the 20th century.<sup about="#mwt122" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-22"}}' id="cite_ref-22" rel="dc:references" typeof="mw:Extension/ref"><a href="./June_6#cite_note-22" id="mwrQ" style="counter-reset: mw-Ref 22;"><span class="mw-reflink-text" id="mwrg">[22]</span></a></sup><sup about="#mwt126" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-23"}}' id="cite_ref-23" rel="dc:references" typeof="mw:Extension/ref"><a href="./June_6#cite_note-23" id="mwrw" style="counter-reset: mw-Ref 23;"><span class="mw-reflink-text" id="mwsA">[23]</span></a></sup>
<span class="mw-reference-text reference-text" id="mw-reference-text-cite_note-22"><cite about="#mwt119" class="citation book cs1" id="CITEREFSimkinSiebert1994">Simkin, Tom; Siebert, Lee (1994). <i id="mwBnk">Volcanoes of the World</i>. Tucson: Geoscience Press, Inc. p.<span id="mwBno" typeof="mw:Entity"> </span>117. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBns" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBnw" typeof="mw:Entity"> </span><a href="./Special:BookSources/978-09-45005-12-4" id="mwBn0" rel="mw:WikiLink" title="Special:BookSources/978-09-45005-12-4"><bdi id="mwBn4">978-09-45005-12-4</bdi></a>.</cite><span about="#mwt119" class="Z3988" id="mwBn8" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Volcanoes+of+the+World&amp;rft.place=Tucson&amp;rft.pages=117&amp;rft.pub=Geoscience+Press%2C+Inc.&amp;rft.date=1994&amp;rft.isbn=978-09-45005-12-4&amp;rft.aulast=Simkin&amp;rft.aufirst=Tom&amp;rft.au=Siebert%2C+Lee&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJune+6"></span></span>