1976 Friuli earthquake
The 1976 Friuli earthquake , also known in Italy as Terremoto del Friuli ( "Friulian earthquake" ) , took place on May 6 with a moment magnitude of 6 . 5 and a maximum Mercalli intensity of X ( "Extreme" ) . 
<triplet> 1976 Friuli earthquake <subj> 6.5 <obj> earthquake magnitude on the Richter magnitude scale