| Date: | 2020-09-26 |
| Time: | 1035 |
| Geyser: | Steamboat |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | Major |
| Duration: | 17 min |
| Standardized Duration: | 17m |
| Time Entered: | 2020-09-26 10:41:27 |
| Time Updated: | 2021-04-24 18:55:00 |
| Time Uploaded: | 2021-04-24 18:55:01 |
| Entrant: | bbev |
| Observer: | |
| Submitted to: | GeyserTimes for Android |
| Comments: | Start time confirmed by mid deck observers. Heard yelling from store beginning at 1034. No radio call! wind from NW. |
| https://www.flickr.com/photos/jsjgeology/50386163658 | Norris Museum seismogram showing Steamboat Geyser's 10:35 AM major eruption on 26 September 2020. | |
| https://www.flickr.com/photos/jsjgeology/50387038622 | Norris Junction seismogram showing Steamboat Geyser's 10:35 AM major eruption on 26 September 2020. | |
| https://www.flickr.com/photos/jsjgeology/50387548761 | Tantalus Creek discharge graph showing Steamboat Geyser's 10:35 AM major eruption on 26 September 2020. | |
| Short video showing Steamboat Geyser's 9/26/2020 major eruption. |