The 6.8 <span about="#mwt92" data-mw='{"parts":[{"template":{"target":{"wt":"M","href":"./Template:M"},"params":{"1":{"wt":"w"}},"i":0}}]}' id="mwAao" typeof="mw:Transclusion">M</span><sub about="#mwt92">w</sub><span about="#mwt92" typeof="mw:Entity"> </span><link about="#mwt92" href="./Category:Articles_using_Mw_magnitude_scale" id="mwAas" rel="mw:PageProp/Category"/> <a href="https://en.wikipedia.org/wiki/2003_Boumerdès_earthquake" id="mwAaw" rel="mw:WikiLink" title="2003 Boumerdès earthquake">Boumerdès earthquake</a> shakes northern <a href="https://en.wikipedia.org/wiki/Algeria" id="mwAa0" rel="mw:WikiLink" title="Algeria">Algeria</a> with a maximum <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Mercalli_intensity_scale" id="mwAa4" rel="mw:WikiLink" title="Mercalli intensity scale">Mercalli intensity</a> of X (<i id="mwAa8">Extreme</i>). More than 2,200 people were killed and a moderate tsunami sank boats at the <a href="https://en.wikipedia.org/wiki/Balearic_Islands" id="mwAbA" rel="mw:WikiLink" title="Balearic Islands">Balearic Islands</a>.