An <a href="https://en.wikipedia.org/wiki/2007_Chūetsu_offshore_earthquake" id="mwAW0" rel="mw:WikiLink" title="2007 Chūetsu offshore earthquake">earthquake</a> of magnitude 6.8 and 6.6 aftershock occurs off the <a href="https://en.wikipedia.org/wiki/Niigata_(city)" id="mwAW4" rel="mw:WikiLink" title="Niigata (city)">Niigata</a> coast of Japan killing eight people, injuring at least 800 and damaging a nuclear power plant.