Last Known Eruption
52d 23h 24m ago

Interval Statistics

Interval Count27
Min38m
Max4y 302d 18h 51m
Mean80d 3h 16m
Median2d 21h 47m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
17435 04 Jun 2021 @ 1457 --- steve When I came up it appeared to be a perpetual spouter to about a foot high however at 1516 it stopped and drained for 2 minutes before restarting
17097 15 May 2021 @ 1410 15 May 2021 @ 1430 Micah Kipple This feature continues its activity of perpetual energetic bursting action, accompanied by a varying water level, with droplets occasionally reaching 2-3 feet. Unlike the last observation posted. I have not observed any complete pauses during my (brief) observation period. Feature requires further observation.
17049 11 May 2021 @ 1247 --- steve It appears to have the same activity that Micah noted on 5-9-21. I think the far vent qualifies as a geyser.
17017 09 May 2021 @ 1130 09 May 2021 @ 1215 Micah Kipple This feature has heated up to boiling since I was last on the Hill. Sinter and bacteria mat debris is scattered around it, suggesting a blowout. If it did blowout, it wasn't big, based on the dispersal of debris. The current activity is frequent energetic bursting to about a foot. There are pauses of several minutes where the main vent goes quiet and a side vent on the bw side of the crater sputters. It is either a frequent geyser or strong cyclic spouter right now depending on your definition.
16361 07 Oct 2020 @ 1557 --- steve Perpetual splashing to a foot or more from a low water level the last 30 minutes. Only a few droplets get above ground level.
15975 05 Sep 2020 @ 1748 --- Graham Continuous noisy splashing from depth. Droplets above the rim.
15379 05 Aug 2020 @ 1115 --- JarnoO (wc) Man stuck right hand into GHG-13's vent twice in this minute. First @ 1115:29 and for a second time @ 1115:38. It even appeared he stirred it.
14765 29 Jun 2020 @ 0745 --- User34 UNNG-GHG-13, sitting 1-2 inches below overflow. Would frequently fill to overflow with some surging and low splashing. Side vent closer to the boardwalk constantly boiling and spluttering.
14746 27 Jun 2020 @ 1503 27 Jun 2020 @ 1535 JarnoO (wc) UNNG-GHG-13. Spit and splash 1503. Also spit 1514, 1515, 1535. Splash 1523. No heights were greater than about ¾ of the boardwalk.
14745 26 Jun 2020 @ 1529 --- JarnoO (wc) UNNG-GHG-13. Blipping and some single jets and splashes to the height of the boardwalk (more commonly ¼ to ½ the height) observed from 1529:50-onw. Interval between these events appear to be anywhere from ½m to minutes apart. Events themselves appear to last only seconds if you're lucky. 2 or 3 very good splashes @ 1556.
2195 26 Aug 2015 @ 2253 --- bhoppe Geyser near Pump/Sponge bench. Looked very recently post eruptive. Bench was wet.
2194 26 Aug 2015 @ 2139 --- Jake Breakout geyser near Sponge observed by Ben Hoppe. periodic steam hissing at depth 2-3 times per minute for 5-10 seconds each
EntrySourceLinkComment
13 May 2021 @ 0754 K.Cooper https://imgur.com/T2cTPbH Screenshot from JoeN
Baseline does not exist.