The 6.9 <span about="#mwt77" data-mw='{"parts":[{"template":{"target":{"wt":"M","href":"./Template:M"},"params":{"1":{"wt":"w"}},"i":0}}]}' id="mw6Q" typeof="mw:Transclusion">M</span><sub about="#mwt77">w</sub><span about="#mwt77" typeof="mw:Entity"> </span><link about="#mwt77" href="./Category:Articles_using_Mw_magnitude_scale" id="mw6g" rel="mw:PageProp/Category"/> <a href="https://en.wikipedia.org/wiki/1980_Irpinia_earthquake" id="mw6w" rel="mw:WikiLink" title="1980 Irpinia earthquake">Irpinia earthquake</a> shakes southern Italy with a maximum <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Mercalli_intensity_scale" id="mw7A" rel="mw:WikiLink" title="Mercalli intensity scale">Mercalli intensity</a> of X (<i id="mw7Q">Extreme</i>), killing 2,483–4,900, and injuring 7,700–8,934.