Sanriku earthquake and tsunami in 869
... that flooding associated with the Sanriku earthquake and tsunami in 869 extended for at least four kilometres inland on the Sendai plain?
... that flooding associated with the <b id="mwBqE"><a class="mw-redirect" href="./869_Sanriku_earthquake_and_tsunami" id="mwBqI" rel="mw:WikiLink" title="869 Sanriku earthquake and tsunami">Sanriku earthquake and tsunami in 869</a></b> extended for at least four kilometres inland on the <a href="./Sendai" id="mwBqM" rel="mw:WikiLink" title="Sendai">Sendai</a> plain?