10 Most Powerful Earthquakes By 960033198 Jan 31, 1906 off the coast of Ecuador 8.8 Aug 15, 1950 Assam-Tibet 8.6 Nov 4, 1952 Kamchatko 9.0 May 22, 1960 Chile Approximately 1,655 killed, 3,000 injured, 2,000,000 homeless Mar 28, 1964 1964 Great Alaska Earthquake took 131 lives Feb 4, 1965 Rat Islands, Alaska 8.7 Dec 26, 2004 Off The West Coast Of Northern Sumatra 9.1 Mar 28, 2005 Northern Sumatra, Indonesia 8.6 Mar 27, 2010 Offshore Of Maule,Chile 8.8 Mar 11, 2011 Near The East Coast Of Honshu,Japan 9.0