| Date: | 2018-06-11 |
| Time: | 1812 |
| Geyser: | East Mustard |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | ~4m |
| Standardized Duration: | ~4m |
| Time Entered: | 2018-06-11 20:08:12 |
| Time Uploaded: | 2019-05-13 21:35:40 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | |
| Comments: | Eruption from 1812 to early 1816. |