Last Known Eruption
1y 272d 11h 43m ago

Latest Eruptions

Eruption DurationInterval
30 Jun 2022 @ 13513y 312d 19h 49m
22 Aug 2018 @ 180235y 44d 3h 13m
18 Jul 1983 @ 1449 ie1y 9d 20h 19m
08 Jul 1982 @ 1830 ie350d 2h 7m
23 Jul 1981 @ 16231h 7m 5y 22d 3h 53m
02 Jul 1976 @ 1230

Interval Statistics

Interval Count5
Min350d 2h 7m
Max35y 44d 3h 13m
Mean9y 74d 19h 28m
Median3y 312d 19h 49m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
22384 07 Jul 2022 @ 1106 --- steve I could see steam rising from the vent and hear water bubbling but no water. A few minutes later the vents filled with bubbling water.
22246 30 Jun 2022 @ 1347 --- cb Deep deep grumbling growling gurgling sounds! 1349 water a rising
21342 17 May 2022 @ 0850 --- mhreed Clunking noises at depth. During Corporal eruption. Two minutes later, water slowly filled with ~3 inch splashing.
21279 14 May 2022 @ 1632 --- mhreed Water one inch below overflow.
20089 22 Oct 2021 @ 0906 --- MAB water level same - down about 6in but visible
20025 17 Oct 2021 @ 0917 --- MAB still 6in down but water is visible
19950 10 Oct 2021 @ 1652 --- MAB resting water level up ~1in from Tuesday- still low about 5in below rim
19905 05 Oct 2021 @ 0857 --- MAB visible water 6in down - with blurpy noises as Corporal began
19550 08 Sep 2021 @ 1015 --- CrisG No water noted in spring before, during, or after eruption of Corporal. Vents do steam in cooler conditions.
14674 18 Jun 2020 @ 1838 --- jkgood Water visible- several inches below surface
14672 18 Jun 2020 @ 1014 --- jkgood No water visible
11327 22 May 2019 @ 0703 --- Kyle no water visible in either vent. audible gurgling sounds at depth
11319 21 May 2019 @ 0908 --- Kyle water visible in vent approx 3-4 in below rim, calm
11330 20 May 2019 @ 0821 --- Kyle water on both vents, calm, 3 in below over flow
9711 13 Aug 2018 @ 1118 --- Kent Dog Leg @ Norris - Water in pools but down two inches. No activity.
4721 08 Sep 1998 @ 1800 --- research-mab 9/8 Dog leg looked odd today. Instead of filling quietly after Corp’s eruption, it had rapid boiling out of 2 vents. Hmmm
7594 05 Feb 1989 @ 0000 05 Feb 1989 @ 2359 JSJ Dog's Leg Spring - no recent (last month) runoff. Water level varies.
4842 14 Aug 1988 @ 1800 --- research-mab 8/14/1988 Dog’s Leg is overflowing more, but not erupting
4669 10 Jul 1982 @ 1800 --- research-mab 7/10/1982 Wet area for Dog Leg along edge of Corporal onto trail. Dog Leg major? → New hot spot on trail directly across from Corporal. Ground is also wet there.
4656 05 Aug 1981 @ 1800 --- research-mab 8-5-81 Dog’s Leg has blown out a new vent! Now is ~3 ½’ by 1’ (tiny sketch of shape img 7593) splashing to 3’ in left vent & 2’ in right. 200º Board walk moved.
4997 20 Sep 1979 @ 0900 --- research-mab 09/20/1979 Disturbance Corporal Geyser and The Dog’s Leg – The trail south of these two features was found to be very wet. Foot prints covering water flowing makes point towards the possibility of a major eruption last night. Dogs Leg (170ºF) bubbling hard before Corporal eruption. As Corporal erupts, Dogs Leg drained with loud gurgling. Corporal temp ie 176ºF.
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Baseline does not exist.