Eruption 1445200

Date:2023-11-13
Time:0616 E
Geyser:Steamboat
Webcam:No
Initial:No
Major/Minor:Major
Duration:
Time Entered:2023-11-13 06:38:23
Time Updated:2023-11-13 11:08:10
Time Uploaded:2023-11-13 11:08:10
Entrant:JarnoO
Observer:YNR seismograph
Submitted to:Geysertimes.org
Comments:re comment: not even Steamboat's strongest minors show up on the seismograph (not even YNM, which is way closer to the action than YNR), only majors do. The shape of the graph, based on dozens of earlier ones, indicates the eruption started at 0616, not 0628. The latter time is about where water gives way to steam.

Added confirm from looking at frequency content of YNB data. From my research, Steamboat produces signals at the nearby seismometers because of air-to-ground coupled waves. The jet noise that produces these waves doesn't start until a major eruption takes off (which is why the seismic times tend to lag slightly behind in-person start times). Looks like an eruption that began and then got choked quickly.
Entrant: mhreed
Time Entered:2023-11-13 11:45:31
Time Uploaded:2023-11-13 11:45:31
Submitted to:Geysertimes.org
mhreed
Time Entered:2023-11-13 11:41:47
Time Uploaded:2023-11-13 11:41:47
Submitted to:Geysertimes.org
No flags for this eruption.
https://www.flickr.com/photos/jsjgeology/53330506015Norris Junction seismogram showing Steamboat Geyser's 6:16 AM major eruption on 13 November 2023.
Entrant: JSJ
Time Entered:2023-11-13 12:34:25
Time Uploaded:2023-11-13 12:34:25
Submitted to:Geysertimes.org
https://www.flickr.com/photos/jsjgeology/53329176472Tantalus Creek discharge graph showing Steamboat Geyser's 6:16 AM major eruption on 13 November 2023.
Entrant: JSJ
Time Entered:2023-11-13 12:35:02
Time Uploaded:2023-11-13 12:35:02
Submitted to:Geysertimes.org