| Date: | 2015-05-21 |
| Time: | 1814 |
| Geyser: | Arsenic |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 9m |
| Standardized Duration: | 9m |
| Time Entered: | 2015-05-21 23:41:28 |
| Time Uploaded: | 2019-05-13 21:41:29 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | Geysertimes.org |
| Comments: | Eruption from 1814 to 1823. |