Last Known Eruption
1y 38d 22h 29m ago

Latest Eruptions

Eruption DurationInterval
22 Apr 2023 @ 152017m
22 Apr 2023 @ 15031y 305d 18h 42m
20 Jun 2021 @ 2021 ie272d 1h 37m
21 Sep 2020 @ 1844~45s 26d 2h 27m
26 Aug 2020 @ 1617 ie8d 23h 50m
17 Aug 2020 @ 1627~35s 2d 10h 7m
15 Aug 2020 @ 0620~30s 33d 13h 4m
12 Jul 2020 @ 1716~30s 340d 2h 43m
07 Aug 2019 @ 143321h 38m
06 Aug 2019 @ 16552d 1h 24m
04 Aug 2019 @ 1531 ie4h 54m
04 Aug 2019 @ 103723h 14m
03 Aug 2019 @ 1123 ie18d 14h 17m
15 Jul 2019 @ 210621d 2h 30m
24 Jun 2019 @ 18367d 23h 50m
16 Jun 2019 @ 18461d 3h 48m
15 Jun 2019 @ 145823h 49m
14 Jun 2019 @ 15092d 22h 56m
11 Jun 2019 @ 16137h 32m
11 Jun 2019 @ 084116h 14m
10 Jun 2019 @ 16273h 22m
10 Jun 2019 @ 13053h 16m
10 Jun 2019 @ 0949 ns1d 17h 41m
08 Jun 2019 @ 16081d 5h 16m
07 Jun 2019 @ 105257m
07 Jun 2019 @ 0955 ns1d 19h 22m
05 Jun 2019 @ 14339m
05 Jun 2019 @ 14242h 11m
05 Jun 2019 @ 121318h 9m
04 Jun 2019 @ 1804 ie1d 8h 47m
03 Jun 2019 @ 091714h 55m
02 Jun 2019 @ 18221h 54m
02 Jun 2019 @ 16281h 24m
02 Jun 2019 @ 150431m
02 Jun 2019 @ 143347m
02 Jun 2019 @ 134645m
02 Jun 2019 @ 130123h 9m
01 Jun 2019 @ 135222h 20m
31 May 2019 @ 15324h 5m
31 May 2019 @ 112716h 31m
30 May 2019 @ 185654m
30 May 2019 @ 18023h 28m
30 May 2019 @ 1434 ie5h 58m
30 May 2019 @ 083612h 27m
29 May 2019 @ 20091h 29m
29 May 2019 @ 184023h 47m
28 May 2019 @ 185321h 56m
27 May 2019 @ 2057251d 4h 50m
18 Sep 2018 @ 16077m
18 Sep 2018 @ 160016m
18 Sep 2018 @ 15448m
18 Sep 2018 @ 15362d 1h 12m
16 Sep 2018 @ 142416h 13m
15 Sep 2018 @ 22113h 14m
15 Sep 2018 @ 1857~40s 10m
15 Sep 2018 @ 1847~55s 27m
15 Sep 2018 @ 1820 ie

Interval Statistics

Interval Count56
Min7m
Max1y 305d 18h 42m
Mean29d 23h 56m
Median16h 22m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
33857 17 Jan 2024 @ 1554 --- K.Cooper low, all yellow and brown bacteria
28268 15 Sep 2023 @ 1930 --- Graham Water level has been up high since the disturbance in May but it appears to have dropped back down a little now.
26921 08 Jul 2023 @ 1427 --- Janet Jones Bubbles rising that didn't break the surface followed by "welling up" waves - slight surging of water. Bubbles again at 1330. Quieted down when the Doublet Pool Thumps quit.
26052 05 Jun 2023 @ 1254 --- Tara Water level still up with slight overflow to the NW. Seems like there's more orange bacteria now, but it's still having occasional short periods of bubbling.
25922 31 May 2023 @ 0623 --- TSBryan bubbles and waves
25916 30 May 2023 @ 1901 --- Tara brief episode of bubbling
25915 30 May 2023 @ 1852 --- Tara waving and bubbles. bubbles stopped but gentle waving continued after.
25833 28 May 2023 @ 0626 --- Graham Still full and waving.
25770 24 May 2023 @ 1818 --- Tara Still full all the way to the edge of the outer sinter rim, pulsating, and slightly murky.
25738 24 May 2023 @ 0641 --- Graham full and pulsing
25639 21 May 2023 @ 0957 --- Tara water level near top of bacteria ring. occasional convection and strings of midsize bubbles (maybe 1" diameter)
25607 20 May 2023 @ 1921 --- SantaFe108 ~8 inches below rim with occasional bubble. Alot of orange bacteria mats exposed to air.
23913 19 Sep 2022 @ 1027 --- Tara Full, bubbling lightly, dark orange bacteria in outer basin
14092 22 Jan 2020 @ 0800 --- Graham Flooded with water, a nice looking spring.
13334 16 Aug 2019 @ 2100 --- Jake saw an eruption around this time. bursting to 5 feet. occurred within seconds of Doublet Pool finishing a thumping session
11792 14 Jun 2019 @ 1655 --- User34 False start
11788 14 Jun 2019 @ 1622 --- User34 False start
11787 14 Jun 2019 @ 1614 --- User34 False start
11596 05 Jun 2019 @ 1213 05 Jun 2019 @ 1434 JSJ Posted eruptions are closed intervals.
EntrySourceLinkComment
21 Sep 2020 @ 1844 ltgangi https://youtu.be/YamESQDpsTM unng-ghg-16
02 Jun 2019 @ 1822 JSJ https://www.youtube.com/watch?v=NxV92cMS_Lg#t=5m36s Clip 14 of this video compilation (time stamp 5:36 to the end) shows UNNG-GHG-16's 6:22 to 6:23 PM eruption on 2 June 2019. The rest of the video shows 3 other eruptions that day.
Baseline does not exist.