The 5.9 <span about="#mwt101" data-mw='{"parts":[{"template":{"target":{"wt":"M","href":"./Template:M"},"params":{"1":{"wt":"w"}},"i":0}}]}' id="mwAXg" typeof="mw:Transclusion">M</span><sub about="#mwt101">w</sub><span about="#mwt101" typeof="mw:Entity"> </span><link about="#mwt101" href="./Category:Articles_using_Mw_magnitude_scale" id="mwAXk" rel="mw:PageProp/Category"/> <a href="https://en.wikipedia.org/wiki/1987_Whittier_Narrows_earthquake" id="mwAXo" rel="mw:WikiLink" title="1987 Whittier Narrows earthquake">Whittier Narrows earthquake</a> shakes the San Gabriel Valley with a <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Mercalli_intensity_scale" id="mwAXs" rel="mw:WikiLink" title="Mercalli intensity scale">Mercalli intensity</a> of VIII (<i id="mwAXw">Severe</i>), killing eight and injuring 200.