| Date: | 2018-09-30 |
| Time: | 1855 E |
| Geyser: | Steamboat |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | Major |
| Duration: | |
| Time Entered: | 2018-09-30 19:11:34 |
| Time Updated: | 2018-09-30 19:14:57 |
| Time Uploaded: | 2018-09-30 20:53:05 |
| Entrant: | EmilyW |
| Observer: | |
| Submitted to: | |
| Comments: | YNM seismograph, see attachment |
| https://imgur.com/a/pBvAdk3 | Seismograph trace of YNM for 9/30 SB. Start is at late 1855 |