- 421.1984 CEEarthquake — California, Central: Morgan Hill (Ms 6.1)
- 422.1984 CEEarthquake — 4 km NNW of Round Valley, California (ML 6.1)
- 423.1983 CEEarthquake — Alaska, Prince William Sound (Ms 6.1)
- 424.1980 CEEarthquake — California, Mammoth Lakes (Ms 6.1)
- 425.1980 CEEarthquake — 11 km WNW of Aspen Springs, California (ML 6.1)
- 426.1980 CEEarthquake — 8 km W of Aspen Springs, California (ML 6.1)
- 427.1975 CEEarthquake — 17 km NE of Snowville, Utah (mb 6.1)
- 428.1951 CEEarthquake — 79 km SW of Adak, Alaska (Mw 6.1)
- 429.1947 CEEarthquake — 30 km SSW of Big Sky, Montana (Mw 6.1)
- 430.1920 CEEarthquake — 109 km E of McCarthy, Alaska (Mw 6.1)
- 431.1919 CEEarthquake — 11 km SE of Naalehu, Hawaii (fa 6.1)
- 432.1912 CEEarthquake — Event 19 Novarupta-Mount Katmai area, Alaska Peninsula (Ms 6.1)
- 433.1912 CEEarthquake — Event 49 Novarupta-Mount Katmai area, Alaska Peninsula (Ms 6.1)
- 434.1910 CEEarthquake — Near Tonopah Junction, Nevada (Mint 6.1)
- 435.1905 CEEarthquake — Northwest of Huron, California (Mw 6.1)
- 436.1903 CEEarthquake — Near San Jose, California (Mw 6.1)
- 437.1894 CEEarthquake — East of San Diego, California (Mw 6.1)
- 438.1887 CEEarthquake — Ka`u District, Hawaii (Mint 6.1)
- 439.1887 CEEarthquake — Ka`u District, Hawaii (Mint 6.1)
- 440.1885 CEEarthquake — Maui region, Hawaii (Mint 6.1)
- 441.1885 CEEarthquake — Near Susanville, California (Mw 6.1)
- 442.1884 CEEarthquake — Northeast of Eureka, California (Mw 6.1)
- 443.1872 CEEarthquake — Island of Hawai`i, Hawaii (Mint 6.1)
- 444.1868 CEEarthquake — Ka`u District, Hawaii (Mint 6.1)
- 445.1868 CEEarthquake — Ka`u District, Hawaii (Mint 6.1)
- 446.1868 CEEarthquake — Ka`u District, Hawaii (Mint 6.1)
- 447.1868 CEEarthquake — Maui region, Hawaii (Mint 6.1)
- 448.1868 CEEarthquake — Ka`u District, Hawaii (Mint 6.1)
- 449.1868 CEEarthquake — Ka`u District, Hawaii (Mint 6.1)
- 450.1864 CEEarthquake — Santa Clara County, California (ML 6.1)
- 451.1861 CEEarthquake — Island of Hawai`i, Hawaii (Mint 6.1)
- 452.1860 CEEarthquake — Island of Hawai`i, Hawaii (Mint 6.1)
- 453.1857 CEEarthquake — 1857 Parkfield, California Earthquake (Mw 6.1)
- 454.1857 CEEarthquake — Island of Hawai`i, Hawaii (Mint 6.1)
- 455.1848 CEEarthquake — Island of Hawai`i, Hawaii (Mint 6.1)
- 456.1844 CEEarthquake — Kilauea South Flank, Hawaii (Mint 6.1)
- 457.1841 CEEarthquake — Kona District, Hawaii (Mint 6.1)
- 458.1840 CEEarthquake — Island of Hawai`i, Hawaii (Mint 6.1)
- 459.1838 CEEarthquake — Kilauea South Flank, Hawaii (Mint 6.1)
- 460.1811 CEEarthquake — Near Memphis, Tennessee (Mw 6.1)
- 461.1964 CEEarthquake — 53 km E of Chenega, Alaska (Mw 6.09)
- 462.1952 CEEarthquake — 77 km SW of Covenant Life, Alaska (Mw 6.09)
- 463.1948 CEEarthquake — 39 km SW of Sand Point, Alaska (Mw 6.08)
- 464.1933 CEEarthquake — 22 km SSE of Stagecoach, Nevada (Mw 6.08)
- 465.1970 CEEarthquake — 13 km ENE of Cordova, Alaska (Mw 6.07)
- 466.1963 CEEarthquake — 54 km WNW of Tatitlek, Alaska (Mw 6.07)
- 467.1954 CEEarthquake — 12 km S of Volcano, Hawaii (Mw 6.07)
- 468.1938 CEEarthquake — 56 km SSW of Unalaska, Alaska (Mw 6.07)
- 469.1926 CEEarthquake — 53 km NE of Deering, Alaska (Mw 6.07)
- 470.1912 CEEarthquake — 13 km S of Akhiok, Alaska (Mw 6.07)
- 471.1964 CEEarthquake — 25 km WSW of Chenega, Alaska (Mw 6.06)
- 472.1970 CEEarthquake — 53 km W of Anchor Point, Alaska (Mw 6.05)
- 473.1957 CEEarthquake — 65 km SE of Atka, Alaska (Mw 6.05)
- 474.1937 CEEarthquake — 62 km SSE of Kokhanok, Alaska (Mw 6.05)
- 475.1957 CEEarthquake — 27 km SW of Adak, Alaska (Mw 6.04)
- 476.1952 CEEarthquake — 15 km SSE of Sand Point, Alaska (Mw 6.04)
- 477.1940 CEEarthquake — 58 km SW of Sand Point, Alaska (Mw 6.04)
- 478.1957 CEEarthquake — 87 km ENE of Nikolski, Alaska (Mw 6.03)
- 479.2014 CEEarthquake — The 2014 South Napa, California Earthquake (Mw 6.02)
- 480.1961 CEEarthquake — 6 km SSE of Fox River, Alaska (Mw 6.02)
Other countries: