| Date: | 2018-06-04 |
| Time: | 1538 |
| Geyser: | Mugwump |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2018-06-04 22:44:44 |
| Time Uploaded: | 2018-06-04 22:44:44 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | Geysertimes.org |
| Comments: | First burst at 1538, with thumps. Second burst (relatively low) at 1539, just over 1 minute after the 1st, with thumps. |