Last Known Eruption
6d 8h 41m ago

Interval Statistics

Interval Count100
Min1h 36m
Max110d 17h 38m
Mean6d 7h 58m
Median23h 48m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
40007 15 Jun 2025 @ 2217 --- Siegmund Off. Channels freshly wet.
38193 14 Jan 2025 @ 0905 --- aferrara vent just left of spouter (not grumbler) noisily hissing and gurgling, splashing 1' periodically
36164 29 Jul 2024 @ 1543 --- EmilyW Off at this time
35520 24 Jun 2024 @ 1145 --- Craigmon99 The geyser that I am writing about is in fact empty (word minimum)
35263 11 Jun 2024 @ 0842 11 Jun 2024 @ 0954 Siegmund Off throughout this time.
34729 28 May 2024 @ 1043 --- Stephen_Gemar Quiet.
34590 16 May 2024 @ 2031 --- Ajw off and drained
28067 06 Sep 2023 @ 0900 --- LynnS Not in eruption
26543 13 Jun 2023 @ 1515 --- Siegmund Off at this time
25359 07 May 2023 @ 1920 --- Ajw Completely drained.
23268 19 Aug 2022 @ 1245 --- SantaFe108 Off before this time.
21568 29 May 2022 @ 1122 --- CP The 1111 ie ended at 1122.
21534 27 May 2022 @ 1322 --- CP Spouter ended at 1322
21473 25 May 2022 @ 1009 --- CP The 0803 ie ended at 1009. Minimum eruption time is 2 hours 6 minutes.
21462 24 May 2022 @ 1447 --- CP The off duration from the previous ie (not logged) to the 1439 event was 92 minutes.
10391 20 Sep 2018 @ 1018 --- Siegmund Off. Grumbler very low (~5cm of bottom rock exposed) and calm.
10359 16 Sep 2018 @ 1640 --- Siegmund Off. Grumbler lower rock awash at 1645 (therefore Spouter about halfway through its quiet period)
3104 19 Jun 2016 @ 1228 --- Siegmund off at 1228. off again at 1512, eruption presumably missed in between
2739 16 Apr 2016 @ 1356 --- Siegmund Off. Grumbler at low level and splashing (so ~30-60 min since prev eruption ended)
2580 25 Oct 2015 @ 1201 --- Siegmund Off at 1201.
2576 24 Oct 2015 @ 1247 24 Oct 2015 @ 1816 Siegmund Off 1247-1306. On at 1635, likely the 1500ie eruption still. Off at 1816.
1663 29 May 2015 @ 1839 --- WillBoekel Spouter was not ie and the Gumper was low and gurgling loudly
EntrySourceLinkComment
07 Jun 2024 @ 1812 JSJ https://www.flickr.com/photos/jsjgeology/53859362360 Photo of Spouter Geyser's evening eruption on 7 June 2024.
19 Jun 2023 @ 1320 JSJ https://www.flickr.com/photos/jsjgeology/53009485575 Photo of Spouter Geyser's early afternoon erupton on 19 June 2023.
04 Aug 2017 @ 1528 JSJ https://www.youtube.com/watch?v=Vp58CY-Rxg4 Video showing Spouter Geyser's preplay activity & 3:28 to 5:08 PM eruption on 4 August 2017.
08 Jun 2017 @ 1454 JSJ https://www.youtube.com/watch?v=kWW-coZmhQY Video compilation of Spouter Geyser's 2:54 to 4:56 PM eruption on 8 June 2017, including time lapse of most of eruption.
04 Aug 2017 @ 1528 JSJ https://www.youtube.com/watch?v=zlILEzpEj2s Time lapse video of Spouter Geyser's 3:28 to 5:08 PM eruption on 4 August 2017.
08 Jun 2017 @ 1454 JSJ https://www.youtube.com/watch?v=bL3KWZ7KsV0 Time lapse video of most of Spouter Geyser's 2:54 to 4:56 PM eruption on 8 June 2017.
08 Jun 2017 @ 1454 JSJ https://www.flickr.com/photos/jsjgeology/34752411423 Photo (1 of 3) of Spouter Geyser's 2:54 to 4:56 PM eruption on 8 June 2017.
03 Jun 2014 @ 1325 JSJ https://www.flickr.com/photos/jsjgeology/14984750770 Photo (1 of 4) of Spouter Geyser in eruption during the early to mid-afternoon of 3 June 2014.
03 Jun 2014 @ 1030 JSJ https://www.flickr.com/photos/jsjgeology/14984643329 Photo (1 of 4) of Spouter Geyser in eruption at 10:30 AM-onward, 3 June 2014.
05 Aug 2013 @ 1705 JSJ https://www.flickr.com/photos/jsjgeology/12823937005 Video clip (1 of 6) of Spouter Geyser in eruption during the late afternoon of 5 August 2013.
05 Aug 2013 @ 1705 JSJ https://www.flickr.com/photos/jsjgeology/14433317356 Photo (1 of many) of Spouter Geyser in eruption in the late afternoon of 5 August 2013.
Baseline does not exist.