| Date: | 2019-01-04 |
| Time: | 1602 E |
| Geyser: | Steamboat |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | Major |
| Duration: | |
| Time Entered: | 2019-01-04 16:27:37 |
| Time Updated: | 2019-01-04 18:06:50 |
| Time Uploaded: | 2019-01-04 18:06:50 |
| Entrant: | Graham |
| Observer: | |
| Submitted to: | |
| Comments: | Based on YNM seismograph. Strong signature for 5 minutes until 1607 and then strong again starting at 1619. First eruption of 2019. Similar signature to 10/15/18 where there was an initial signature, followed by a narrow trace and then a fat long signature. The duration might have been about 19min if it was similar to 10/15 (who's 26min visual duration ended 2min into the second thick signature). Tantalus Creek gauge spiked from 1730 to 1838 per Eric Z. So the rise was 1h28min after SB started erupting. |
| https://quake.utah.edu/station/heli2/20190104/YNM_SHZ_WY_01-20190104.png | YNM Seismograph for 2019-01-04 | Entrant: Art Time Entered:2019-01-04 17:24:18 Time Updated:2019-02-05 12:21:33 Time Uploaded:2019-02-05 12:21:33 Submitted to: |
| https://www.flickr.com/photos/jsjgeology/46556741992 | Norris Museum seismogram showing Steamboat Geyser's 4:02 PM-onward major eruption on 4 January 2019. | |
| https://www.flickr.com/photos/jsjgeology/45884511874 | Tantalus Creek discharge graph showing spike from Steamboat Geyser's 4:02 PM-onward major eruption on 4 January 2019. |