| Date: | 1973-04-22 |
| Time: | 2006 |
| Geyser: | Ebony |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | Major |
| Duration: | 4m43s |
| Standardized Duration: | 4m 43s |
| Time Entered: | 2017-09-08 07:36:41 |
| Time Updated: | 2017-09-09 12:46:31 |
| Time Uploaded: | 2019-05-13 21:46:07 |
| Entrant: | research-mab |
| Observer: | 1973 log R.Hutchinson |
| Submitted to: | |
| Comments: | >40 ft ~ Major eruption with complete draining |