| Date: | 2018-05-27 |
| Time: | 1933 E (?) |
| Geyser: | Steamboat |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2018-05-27 19:57:09 |
| Time Updated: | 2018-05-27 22:23:30 |
| Time Uploaded: | 2018-05-28 11:51:38 |
| Entrant: | Polly |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | Looks like possible Steamboat signature on Norris Museum seismogram at 1933. Also shows up on Norris Ranger Station seismogram at 1917. |