The 8.5–9.0 <span about="#mwt18" data-mw='{"parts":[{"template":{"target":{"wt":"M","href":"./Template:M"},"params":{"1":{"wt":"w"}},"i":0}}]}' id="mwlg" typeof="mw:Transclusion">M</span><sub about="#mwt18">w</sub><span about="#mwt18" typeof="mw:Entity"> </span><link about="#mwt18" href="./Category:Articles_using_Mw_magnitude_scale" id="mwlw" rel="mw:PageProp/Category"/> <a href="https://en.wikipedia.org/wiki/1868_Arica_earthquake" id="mwmA" rel="mw:WikiLink" title="1868 Arica earthquake">Arica earthquake</a> struck southern <a href="https://en.wikipedia.org/wiki/Peru" id="mwmQ" rel="mw:WikiLink" title="Peru">Peru</a> with a maximum <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Mercalli_intensity_scale" id="mwmg" rel="mw:WikiLink" title="Mercalli intensity scale">Mercalli intensity</a> of XI (<i id="mwmw">Extreme</i>), causing 25,000+ deaths and a destructive basin wide <a href="https://en.wikipedia.org/wiki/Tsunami" id="mwnA" rel="mw:WikiLink" title="Tsunami">tsunami</a> that affected Hawaii and New Zealand.