The 8.4–9.0 <span about="#mwt26" data-mw='{"parts":[{"template":{"target":{"wt":"M","href":"./Template:M"},"params":{"1":{"wt":"w"}},"i":0}}]}' id="mwMg" typeof="mw:Transclusion">M</span><sub about="#mwt26">w</sub><span about="#mwt26" typeof="mw:Entity"> </span><link about="#mwt26" href="./Category:Articles_using_Mw_magnitude_scale" id="mwMw" rel="mw:PageProp/Category"/><a class="mw-redirect" href="https://en.wikipedia.org/wiki/869_Sanriku_earthquake" id="mwNA" rel="mw:WikiLink" title="869 Sanriku earthquake">Sanriku earthquake</a> strikes the area around <a href="https://en.wikipedia.org/wiki/Sendai" id="mwNQ" rel="mw:WikiLink" title="Sendai">Sendai</a> in northern <a href="https://en.wikipedia.org/wiki/Honshu" id="mwNg" rel="mw:WikiLink" title="Honshu">Honshu</a>, Japan. Inundation from the tsunami extended several kilometers inland.