| Date: | 2021-09-13 |
| Time: | 1040 |
| Geyser: | Clepsydra |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 6h14m |
| Standardized Duration: | 6h 14m |
| Time Entered: | 2021-09-13 10:41:11 |
| Time Updated: | 2021-09-13 16:55:10 |
| Time Uploaded: | 2021-09-13 17:57:46 |
| Entrant: | Graham |
| Observer: | |
| Submitted to: | GeyserTimes for Android |
| Comments: | Started just after Fountain. 19 pauses observed prior to this long eruption. |