I got it from USGS and here's th list of historical quakes by magnitude and this would be the 5th largest ever recorded since 1900 (it isn't shown on the list below):

Sorted by Magnitude, Magnitude 6.0 and Greater

Selected earthquakes of general historic interest.
All earthquake dates are UTC, not local time.

Includes United States earthquakes.

1960 05 22 - Chile - M 9.5
1964 03 28 - Prince William Sound, Alaska - M 9.2
2004 12 26 - Sumatra-Andaman Islands - M 9.1
1952 11 04 - Kamchatka - M 9.0
1868 08 13 - Arica, Peru (now Chile) - M 9.0
1700 01 26 - Cascadia Subduction Zone - M 9.0
2010 02 27 - Offshore Bio-Bio, Chile - M 8.8
1906 01 31 - Off the Coast of Esmeraldas, Ecuador - M 8.8
1965 02 04 - Rat Islands, Alaska - M 8.7
1755 11 01 - Lisbon, Portugal - M 8.7
1730 07 08 - Valparasio, Chile - M 8.7
2005 03 28 - Northern Sumatra, Indonesia - M 8.6
1957 03 09 - Andreanof Islands, Alaska - M 8.6
1950 08 15 - Assam - Tibet - M 8.6
2007 09 12 - Southern Sumatra, Indonesia - M 8.5
1963 10 13 - Kuril Islands - M 8.5
1938 02 01 - Banda Sea, Indonesia - M 8.5
1923 02 03 - Kamchatka - M 8.5
1922 11 11 - Chile-Argentina Border - M 8.5
1896 06 15 - Sanriku, Japan - M 8.5
1687 10 20 - Lima, Peru - M 8.5
2001 06 23 - Near the Coast of Peru - M 8.4
1933 03 02 - Sanriku, Japan - M 8.4
1905 07 09 - Mongolia - M 8.4
2006 11 15 - Kuril Islands - M 8.3
2003 09 25 - Hokkaido, Japan Region - M 8.3
1958 11 06 - Kuril Islands - M 8.3
1903 08 11 - Southern Greece - M 8.3
1897 06 12 - Assam, India - M 8.3
1877 05 10 - Offshore Tarapaca, Chile - M 8.3
1843 02 08 - Leeward Islands - M 8.3
1994 06 09 - Bolivia - M 8.2
1943 04 06 - Illapel - Salamanca, Chile - M 8.2
1942 08 24 - Off the coast of central Peru - M 8.2
1940 05 24 - Callao, Peru - M 8.2
1938 11 10 - Shumagin Islands, Alaska - M 8.2
1908 12 12 - Off the Coast of Central Peru - M 8.2
1906 08 17 - Valparaiso, Chile - M 8.2
1835 02 20 - Concepcion, Chile - M 8.2
1821 07 10 - Camana, Peru - M 8.2
2009 09 29 - Samoa Islands region - M 8.1
2007 01 13 - East of the Kuril Islands - M 8.1
2007 04 01 - Solomon Islands - M 8.1
2004 12 23 - North of Macquarie Island - M 8.1
1998 03 25 - Balleny Islands Region - M 8.1
1974 10 03 - Near the Coast of Central Peru - M 8.1
1966 10 17 - Near the Coast of Peru - M 8.1
1957 12 04 - Gobi-Altay, Mongolia - M 8.1
1949 08 22 - Queen Charlotte Islands, British Columbia, Canada - M 8.1
1946 12 20 - Nankaido, Japan - M 8.1
1946 04 01 - Unimak Island, Alaska - M 8.1
1944 12 07 - Tonankai, Japan - M 8.1
1934 01 15 - Bihar, India - Nepal - M 8.1
1932 06 03 - Jalisco, Mexico - M 8.1
2007 08 15 - Near the Coast of Central Peru - M 8.0
2006 05 03 - Tonga - M 8.0
2000 11 16 - New Ireland Region, Papua New Guinea - M 8.0
1985 09 19 - Michoacan, Mexico - M 8.0
1970 07 31 - Colombia - M 8.0
1946 08 04 - Samana, Dominican Republic - M 8.0
1945 11 27 - Makran Coast, Pakistan - M 8.0
1931 08 10 - Xinjiang, China - M 8.0
1920 06 05 - Taiwan region - M 8.0
1907 10 21 - Qaratog, Tajikistan - M 8.0
1899 09 10 - Yakutat Bay, Alaska - M 8.0
1891 10 27 - Mino-Owari, Japan - M 8.0
1855 01 23 - Wellington, New Zealand - M 8.0
1787 05 02 - Puerto Rico - M 8.0
1668 08 17 - Anatolia, Turkey - M 8.0
1556 01 23 - Shensi, China - M 8.0