Last Known Eruption
2d 1h 14m ago

Latest Eruptions

Eruption DurationInterval
19 May 2025 @ 104721m
19 May 2025 @ 10269m
19 May 2025 @ 101720m
19 May 2025 @ 095738m
19 May 2025 @ 091921m
19 May 2025 @ 085830m
19 May 2025 @ 082822m
19 May 2025 @ 080620m
19 May 2025 @ 074620m
19 May 2025 @ 072616m
19 May 2025 @ 071023m
19 May 2025 @ 064721m
19 May 2025 @ 062613h 36m
18 May 2025 @ 16501h 51m
18 May 2025 @ 145918m
18 May 2025 @ 144119m
18 May 2025 @ 142240m
18 May 2025 @ 134210m
18 May 2025 @ 133216m
18 May 2025 @ 131619m
18 May 2025 @ 125721m
18 May 2025 @ 123632m
18 May 2025 @ 120418m
18 May 2025 @ 114620m
18 May 2025 @ 112619m
18 May 2025 @ 110718m
18 May 2025 @ 104918m
18 May 2025 @ 103118m
18 May 2025 @ 101331m
18 May 2025 @ 094219m
18 May 2025 @ 092318m
18 May 2025 @ 090517h 42m
17 May 2025 @ 152318m
17 May 2025 @ 150520m
17 May 2025 @ 144520m
17 May 2025 @ 142531m
17 May 2025 @ 135439m
17 May 2025 @ 131519m
17 May 2025 @ 125618m
17 May 2025 @ 123851m
17 May 2025 @ 114720m
17 May 2025 @ 112722m
17 May 2025 @ 110518m
17 May 2025 @ 104739m
17 May 2025 @ 100840m
17 May 2025 @ 09281d 2h 11m
16 May 2025 @ 07171d 1h 51m
15 May 2025 @ 052614h 23m
14 May 2025 @ 150324m
14 May 2025 @ 143920m
14 May 2025 @ 141920m
14 May 2025 @ 135921m
14 May 2025 @ 133823m
14 May 2025 @ 131517m
14 May 2025 @ 125820m
14 May 2025 @ 123821m
14 May 2025 @ 121719m
14 May 2025 @ 115820m
14 May 2025 @ 113819m
14 May 2025 @ 111917m
14 May 2025 @ 110216m
14 May 2025 @ 104618m
14 May 2025 @ 102822m
14 May 2025 @ 100618m
14 May 2025 @ 094817m
14 May 2025 @ 093139m
14 May 2025 @ 085211m
14 May 2025 @ 084117m
14 May 2025 @ 082420m
14 May 2025 @ 080419m
14 May 2025 @ 074519m
14 May 2025 @ 072620m
14 May 2025 @ 070619m
14 May 2025 @ 06472d 21h 36m
11 May 2025 @ 0911 ie3d 19h 48m
07 May 2025 @ 132316m
07 May 2025 @ 130717m
07 May 2025 @ 125010d 22h 45m
26 Apr 2025 @ 14051d 21h 41m
24 Apr 2025 @ 16242d 22h 20m
21 Apr 2025 @ 180423m
21 Apr 2025 @ 17411d 3h 55m
20 Apr 2025 @ 134618m
20 Apr 2025 @ 132816m
20 Apr 2025 @ 13121h 35m
20 Apr 2025 @ 1137181d 34m
21 Oct 2024 @ 1103 ie19d 23h 46m
01 Oct 2024 @ 111721m
01 Oct 2024 @ 105646m
01 Oct 2024 @ 101021m
01 Oct 2024 @ 09493d 22h 39m
27 Sep 2024 @ 111023m
27 Sep 2024 @ 104723m
27 Sep 2024 @ 102418m
27 Sep 2024 @ 10062d 1h 43m
25 Sep 2024 @ 08231d 23h 33m
23 Sep 2024 @ 0850 ie3d 14h 42m
19 Sep 2024 @ 1808 ie>2m 23h 9m
18 Sep 2024 @ 1859 ie13d 4h 14m
05 Sep 2024 @ 144522h 15m

Interval Statistics

Interval Count100
Min9m
Max181d 34m
Mean2d 13h 37m
Median21m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
36356 10 Aug 2024 @ 0930 10 Aug 2024 @ 0950 LynnS Break in data collection
27511 10 Aug 2023 @ 1929 10 Aug 2023 @ 2017 JSJ Closed intervals. Still having longs (L) and shorts (S). This evening's eruptions: S, L, S, S.
17390 02 Jun 2021 @ 1722 02 Jun 2021 @ 2101 JSJ All closed intervals. "Rejuvenated Geyser" is still doing longs (L) and shorts (S). Longs are about 1 minute or over in duration. Shorts are under a half-minute. Here's 3.5 hours' worth of eruptions: S-L-S-S-S-L-L-S-S-S-S-L-L-S-S-S-L-S-S-L-S-S-L-S-L. 36% are longs. 64% are shorts. Intervals after a "long" eruption are (not in order): ~14m, ~15m, ~15m, ~15m, ~16m, ~17m, ~18m. Intervals after a "short" eruption are (not in strict order): ~6m, ~5m, ~6m, ~5m, ~6m, ~5m, ~6m, ~5m, ~6m, ~5m, ~7m, ~5m, ~6m, ~6m.
17234 28 May 2021 @ 1409 28 May 2021 @ 1429 JSJ "Rejuvenated Geyser". Still doing shorts and longs. The 3 eruptions posted here are closed intervals.
15355 03 Aug 2020 @ 1523 03 Aug 2020 @ 1615 JSJ "Rejuvenated Geyser". All closed intervals. Having discrete shorts and longs, unlike 2 days ago.
13004 03 Aug 2019 @ 1650 03 Aug 2019 @ 1804 JSJ "Rejuvenated Geyser". All closed intervals. Still doing longs and shorts.
11555 03 Jun 2019 @ 2031 03 Jun 2019 @ 2102 JSJ All posted eruptions are closed intervals.
8909 26 Jun 2018 @ 0600 26 Jun 2018 @ 0710 LynnS Eruptions lasting less than 30 seconds occurred regularly at 2-1/2 to 3 minute intervals.
8689 14 Jun 2018 @ 2004 14 Jun 2018 @ 2100 JSJ "Rejuvenated Geyser" is departing from its recent ~0.25 minute duration eruptions every 3 to 4 minutes. Observed a "long" eruption, followed by 4 "short" eruptions, another "long", then more "shorts". 13 to 16 minute intervals between a "long" and the next "short".
8395 01 Jun 2018 @ 1010 01 Jun 2018 @ 1515 LynnS Same activity as before—intervals 3-4 minutes, durations less than 15 seconds.
8394 01 Jun 2018 @ 0600 01 Jun 2018 @ 0900 LynnS Erupting every 3 minutes for 5-15 seconds again today.
8378 31 May 2018 @ 0815 31 May 2018 @ 1145 LynnS Rejuvenated was erupting at 3 minute intervals with durations of 5 to 15 seconds throughout the observation period.
3459 09 Aug 2016 @ 1229 09 Aug 2016 @ 1553 JSJ Couldn't see all "Rejuvenated Geyser" eruptions due to parked vehicles sometimes blocking my view. The entries for this afternoon are not all guaranteed to be closed intervals. Considering this geyser's recent erratic intervals and durations, I'm sure I missed some.
1702 07 Jun 2015 @ 1416 07 Jun 2015 @ 1540 LynnS "Rejuvenated" was not under observation from 1416 to 1540.
1701 07 Jun 2015 @ 0835 07 Jun 2015 @ 0930 LynnS "Rejuvenated" was not under observation from 0835 to 0930.
EntrySourceLinkComment
07 Jun 2016 @ 2125 JSJ https://www.flickr.com/photos/jsjgeology/29062770646 Thermal image of Rejuvenated Geyser's 9:25 to 9:29 PM eruption on 7 June 2016.
08 Aug 2015 @ 1827 JSJ https://www.flickr.com/photos/jsjgeology/21915665959 Photo (1 of 2) of Rejuvenated Geyser's 6:27 to 6:31 PM eruption on 8 August 2015.
09 Jul 2015 @ 1742 JSJ https://www.flickr.com/photos/jsjgeology/20835815895 Photo of Rejuvenated Geyser's 5:42 to 5:48 PM eruption on 9 July 2015.
08 Jul 2015 @ 2028 JSJ https://www.flickr.com/photos/jsjgeology/20562295698 Photo (1 of 4) of Rejuvenated Geyser's 8:28 to 8:33 PM eruption on 8 July 2015.
Baseline does not exist.