| Date: | 2018-08-09 |
| Time: | 1846 |
| Geyser: | Fountain |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 33m |
| Standardized Duration: | 33m |
| Time Entered: | 2018-08-09 23:14:29 |
| Time Uploaded: | 2019-05-13 21:45:27 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | |
| Comments: | Eruption from 1846 to 1919. With Jets and a partial Morning's Thief. No Twig. |