Last update: 5-Dec-1997 by ABS.
| Num | Letter | Name | Epicenter | Mag | Duration |
|---|---|---|---|---|---|
| 1 | A | Explorers | Orange | 8.2 | 1766-1769.07.28 |
| - | B | (Watchers) | Owens Valley (Lone Pine) | IX | 1789-1792 |
| 2 | C | Californios | Santa Barbara | _1809-1812.12.21 | |
| - | D | (Pirates) | San Fran. Bay | X | 1836-1838.06|
| 3 | E | Yankees | Kern | 8.5 | 1855-1857.06.09|
| - | F | (Hermits) | SF, Alameda | 7.8 | 1863-1865.03.21|
| 4 | G | Civilizers | Owens Valley (Lone Pine) | 8.21870-1872.03.26 | |
| - | H | (Faith Keepers) | San Benito | IX1878-1880.10.31 | |
| 5 | I | Drillers | Vacaville | 6.81890-1892.04.19 | |
| - | zeta | [Desperates] | Calcutta | 0.0 | 1900-190?.0?.?? |
| 6 | J | Hustlers | San Bernardino | 6.31897-1907.09.19 (&) | |
| - | K | (Anarchists) | Los Angeles | 51910-1910.10.01 | |
| 7 | L | Public Works | El Centro | 6.51913-1915.06.25 | |
| - | alpha | (Rogues) | Tejon Pass | 6.51916-1918.10.22 | |
| 8 | M | Visionaries | Inglewood | 6.91918-1920.06.21 | |
| - | N | (Babylonians) | Santa Barbara | 7.51923-1927.11.04 | |
| 9 | O | Olympians | (Norwalk) Colorado River | 7.1 | 1931-1934.12.31|
| - | P | (Scientists) | Hollywood | 5 | 1938-1938.12.14 |
| 10 | Q | Radio Dolls | El Centro | 7.1 | 1938-1940.05.18 |
| - | R | (Corruption) | Long Beach | 5 | 1943-1943 |
| 11 | S | Fallen Angels | Desert Hot Springs, Barstow | 6.5 | 1946-1948.12.04 |
| 12 | T | Mouseketeers | ___, Mexico | 6.5 | 1954-1956.02.09 |
| - | U | (Knights of St. Mickey) | Norwalk | 5 | 1958-1958.02 |
| - | Gamma | (Mercenaries) | Anchorage | ? | 1962-1964 |
| 13 | V | Beatlemaniacs | Sylmar | 7.1 | 1964-1971.11.21 (&) (&) |
| - | W | (Dealers) | Mammoth Lake | 6.1 | 1977-1980.05.28 (&) |
| 14 | X | [New Agers] | Kilhueah (?) | 0.0 | 1990-1991.07.__ |
| - | Phi | Post-Moderns | Northridge | 6.? | 1985-1994.01.17 (&)|
| - | iota | (Maniacs) | Palos Verdes | 5 | 1999-1999 (&) |
| 15 | Y | Neo-Colonials | ___ | 6.9 | ____-____ |
| 16 | Z | Apocalyptics | Palm Springs | 7.9 | ____-____ |
| - | Omega | (Octets) | ___ | 10.3 | ____-____ |