| Date: | 2021-02-21 |
| Time: | 1920 E |
| Geyser: | Steamboat |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | Major |
| Duration: | |
| Time Entered: | 2021-02-21 19:26:31 |
| Time Uploaded: | 2021-02-21 19:26:31 |
| Entrant: | K.Cooper |
| Observer: | YNM and YNR seismographs. |
| Submitted to: | |
| Comments: |
| Polly | Time Entered:2021-02-21 19:54:02 Time Uploaded:2021-02-21 19:54:02 Submitted to:GeyserTimes for iOS |
| https://www.flickr.com/photos/jsjgeology/50968474001 | Norris Museum seismogram showing Steamboat Geyser's 7:20 PM major eruption on 21 February 2021. |