| Label: | ABC/Dunhill Records 45-D-4166 |
| Genre: | Rock, Pop, Folk, World, & Country |
| Format: | Vinyl (7" , 45 RPM) |
| A | California Earthquake » Written-By: John Hartford | |
| B | Talkin' To Your Toothbrush » Written-By: John Simon |
| Label: | Dunhill D-4166 |
| Genre: | Folk, World, & Country, Pop, Rock |
| Format: | Vinyl (7" , 45 RPM , Single , White Label , Promo) |
| A | California Earthquake » Written-By: John Hartford | 2:42 |
| B | Talkin' To Your Toothbrush » Written-By: John Simon | 2:19 |
| Label: | Columbia Stateside C 23 932 |
| Genre: | Folk, World, & Country, Pop, Rock |
| Style: | Vocal |
| Format: | Vinyl (7" , 45 RPM) |
| A | California Earthquake » Written-By: John Hartford | 2:42 |
| B | Talkin' To Your Toothbrush » Written-By: John Simon | 2:23 |
| Label: | Stateside FSS 624 |
| Genre: | Rock, Pop, Folk, World, & Country |
| Style: | Vocal |
| Format: | Vinyl (7" , 45 RPM) |
| A | California Earthquake » Written-By: John Hartford | |
| B | Talkin' To Your Toothbrush » Written-By: John Simon |