| Date: | 2023-05-31 |
| Time: | 1932 |
| Geyser: | UNNG-GHG-17 |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 4m |
| Standardized Duration: | 4m |
| Time Entered: | 2023-05-31 19:29:56 |
| Time Updated: | 2023-05-31 19:37:40 |
| Time Uploaded: | 2023-05-31 19:37:49 |
| Entrant: | Graham |
| Observer: | |
| Submitted to: | GeyserTimes for Android |
| Comments: | longest interval so far. Followed eruption where 17a erupted 31m after 17. |