| Date: | 1991-08-12 |
| Time: | 0553 |
| Geyser: | Morning |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 11m33s |
| Standardized Duration: | 11m 33s |
| Time Entered: | 2013-04-24 13:45:42 |
| Time Uploaded: | 2019-05-13 21:47:52 |
| Entrant: | LynnS |
| Observer: | Stephens |
| Submitted to: | |
| Comments: | missed an eruption between the 8/11 2305 eruption and the 0553 8/12 eruption per markers |