The 7.3 <span about="#mwt33" data-mw='{"parts":[{"template":{"target":{"wt":"M","href":"./Template:M"},"params":{"1":{"wt":"w"}},"i":0}}]}' id="mw4w" typeof="mw:Transclusion">M</span><sub about="#mwt33">w</sub><span about="#mwt33" typeof="mw:Entity"> </span><link about="#mwt33" href="./Category:Articles_using_Mw_magnitude_scale" id="mw5A" rel="mw:PageProp/Category"/> <a href="https://en.wikipedia.org/wiki/1952_Kern_County_earthquake" id="mw5Q" rel="mw:WikiLink" title="1952 Kern County earthquake">Kern County earthquake</a> strikes <a href="https://en.wikipedia.org/wiki/Southern_California" id="mw5g" rel="mw:WikiLink" title="Southern California">Southern California</a> with a maximum <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Mercalli_intensity_scale" id="mw5w" rel="mw:WikiLink" title="Mercalli intensity scale">Mercalli intensity</a> of XI (<i id="mw6A">Extreme</i>), killing 12 and injuring hundreds.