Last Known Eruption
17d 19h 29m ago

Latest Eruptions

Eruption DurationInterval
06 Oct 2020 @ 1312 ie11d 2h 27m
25 Sep 2020 @ 1045 ie9d 18h 14m
15 Sep 2020 @ 163112m 26s 17m
15 Sep 2020 @ 16148m 2s 16m
15 Sep 2020 @ 1558 ie3h 2m
15 Sep 2020 @ 125611m 57s 18m
15 Sep 2020 @ 12389m 10s 22m
15 Sep 2020 @ 121610m 43s 16m
15 Sep 2020 @ 12007m 21s 22h 19m
14 Sep 2020 @ 1341 ie2h 33m
14 Sep 2020 @ 1108 ie1d 22h 12m
12 Sep 2020 @ 12562d 22h 13m
09 Sep 2020 @ 1443 ie20h 31m
08 Sep 2020 @ 1812 ie2d 4h 37m
06 Sep 2020 @ 1335 ie15m
06 Sep 2020 @ 13205m 55s 18m
06 Sep 2020 @ 13025m 32s 1h 57m
06 Sep 2020 @ 1105 ie12d 2h 39m
25 Aug 2020 @ 0826 ie17h 15m
24 Aug 2020 @ 151115m
24 Aug 2020 @ 145621m
24 Aug 2020 @ 143522m
24 Aug 2020 @ 141316m
24 Aug 2020 @ 135716m
24 Aug 2020 @ 134118m
24 Aug 2020 @ 1323 ie1h 39m
24 Aug 2020 @ 114418m
24 Aug 2020 @ 112620m
24 Aug 2020 @ 110620m
24 Aug 2020 @ 104610m 21s 13m
24 Aug 2020 @ 1033 ie5d 17h 30m
18 Aug 2020 @ 1703 ie3d 21h 28m
14 Aug 2020 @ 1935 ie1d 8h 21m
13 Aug 2020 @ 1114 ie3d 16h 38m
09 Aug 2020 @ 1836 ie1d 8h 40m
08 Aug 2020 @ 0956 ie9d 8h 4m
30 Jul 2020 @ 0152 ie4h 20m
29 Jul 2020 @ 2132 ie5d 7h 41m
24 Jul 2020 @ 1351 ie6h 17m
24 Jul 2020 @ 0734 ie4d 21h 29m
19 Jul 2020 @ 10058m 4s 16m
19 Jul 2020 @ 09497m 49s 18m
19 Jul 2020 @ 09318m 48s 13m
19 Jul 2020 @ 0918 ie7d 15h 2m
11 Jul 2020 @ 1816 ie1h 22m
11 Jul 2020 @ 1654 ie20d 34m
21 Jun 2020 @ 1620 ie3d 6h 7m
18 Jun 2020 @ 1013 ie11d 23h 50m
06 Jun 2020 @ 102313m 215d 21h 6m
03 Nov 2019 @ 1216:1010m 28s 27m
03 Nov 2019 @ 1149 ie13m 31s 1d 19h 52m
01 Nov 2019 @ 1657 ie18d 49m
14 Oct 2019 @ 1608 ie2d 36m
12 Oct 2019 @ 1532 ie18d 21h 9m
23 Sep 2019 @ 182310m 4s 21m
23 Sep 2019 @ 18028m 52s 17m
23 Sep 2019 @ 17456m 56s 11d 10h 14m
12 Sep 2019 @ 07316m 11h 23m
11 Sep 2019 @ 20087h 45m
11 Sep 2019 @ 122317m
11 Sep 2019 @ 120620m
11 Sep 2019 @ 1146 ie17m
11 Sep 2019 @ 1129 ie1h 6m
11 Sep 2019 @ 1023 ie1h 0m
11 Sep 2019 @ 0923 ie21h 6m
10 Sep 2019 @ 12175m 5d 2h 21m
05 Sep 2019 @ 0956 ie13h 54m
04 Sep 2019 @ 2002 ie4h 24m
04 Sep 2019 @ 1538 ie46m
04 Sep 2019 @ 1452 ie20m
04 Sep 2019 @ 1432 ie4h 26m
04 Sep 2019 @ 100617m
04 Sep 2019 @ 094914m
04 Sep 2019 @ 093518m
04 Sep 2019 @ 0917 ns1d 2h 11m
03 Sep 2019 @ 0706 ie21h 4m
02 Sep 2019 @ 1002 ie8d 17h 30m
24 Aug 2019 @ 163213m 40s 17m
24 Aug 2019 @ 161512m 33s 13m
24 Aug 2019 @ 1602 ie1d 20h 11m
22 Aug 2019 @ 1951 ie3h 57m
22 Aug 2019 @ 1554 ie5d 23h 13m
16 Aug 2019 @ 1641 ie2d 50m
14 Aug 2019 @ 1551 ie3d 7h 0m
11 Aug 2019 @ 0851 ie8d 21h 12m
02 Aug 2019 @ 1139 ie30d 16h 59m
02 Jul 2019 @ 184010m 22s 22m
02 Jul 2019 @ 18188m 40s 19d 2h 29m
13 Jun 2019 @ 154910m 42s 14m
13 Jun 2019 @ 1535 ie48m
13 Jun 2019 @ 1447 ie1h 38m
13 Jun 2019 @ 1309 ie23h 49m
12 Jun 2019 @ 13203h 6m
12 Jun 2019 @ 1014 ie36m
12 Jun 2019 @ 0938 ie5d 9m
07 Jun 2019 @ 0929 ie17h 16m
06 Jun 2019 @ 1613 ie10d 6h 6m
27 May 2019 @ 100732d 22h 57m
24 Apr 2019 @ 1110 ie18h 32m
23 Apr 2019 @ 163825m

Interval Statistics

Interval Count100
Min13m
Max215d 21h 6m
Mean5d 7h 38m
Median4h 25m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
16299 28 Sep 2020 @ 1424 --- bbev low water level, lime green in color.
14673 18 Jun 2020 @ 1837 --- jkgood Down 3-4 inches, calm
11317 22 May 2019 @ 0703 --- Kyle nearly full but below over flow. steady boiling and bubbles
11328 21 May 2019 @ 0908 --- Kyle low pool, quiet
11331 20 May 2019 @ 0821 --- Kyle low pool, quiet
10352 16 Sep 2018 @ 1109 16 Sep 2018 @ 1111 Siegmund Gas bubbles and good thumps at 1109. Steam flashes at bottom of pool 1111. Water ~3cm below overflow.
9710 13 Aug 2018 @ 1118 --- Kent Pool six inches below overflow and only minor steam
8848 22 Jun 2018 @ 1645 22 Jun 2018 @ 1735 MAB Two eruptions in this time frame - Starts are different – more convection and upwelling before it starts as it used to, or if that is the start it is very very different, so I don’t have good start times yet until I figure it out! Water level is low, but it does reach overflow during the eruption, about 10 feet out. Superb growling and grumbling from Dog Leg!
8884 21 Jun 2018 @ 0915 --- Polly Bubbling in the back of the pool.
8562 03 Jun 2018 @ 1520 --- Siegmund Pool down ~15cm, runoff channel dry.
8561 03 Jun 2018 @ 1156 --- Siegmund Pool down ~10cm, but runoff channel wet.
2595 31 Oct 2015 @ 2058 --- MAB Corporal and Dog Leg water levels are back to predisturbance levels, after going way way up, then followed by very very low for weeks. I did not get a full cycle to check intervals and durations because Vixen was vexing.
7593 05 Feb 1989 @ 0000 05 Feb 1989 @ 2359 JSJ Corporal Geyser full, clear, overflowing.
7600 11 Feb 1984 @ 1800 --- research-mab 02/11/1984 Corporal Geyser is now serving only as a receptacle for the Dog’s Leg.
5548 10 Jul 1976 @ 1800 --- research-mab 07/10/1976 Corporal Geyser - - feature appears to be more active than normal. The wash from the feature extended beyond normal runoff channel and was evident on the trail between Veteran and the “T” in the trail by bridge at Tantalus.
5700 27 Sep 1975 @ 1800 --- research-mab 09/27/1975 Corporal: the usual overflow activity (periodic with draining level of pool down ~ 6”) which has not been apparent in the last two weeks, was noticed happening today. Timed sequence: 22 min interval between one drain period and another – 15 ½ min after it started to drain, it started to fill, overflow lasted ~ 1 min, draining : ~1 min, filling about 5 min.
5696 01 Sep 1975 @ 1150 --- research-mab 09/01/1975 Corporal filled at 1150- intense boiling. No reaction in either Veteran or Rubble.
5697 01 Sep 1975 @ 1032 --- research-mab 09/01/1975 Corporal was checked during eruption of Rubble. No significant change in Corporal.
5611 05 Aug 1975 @ 1800 --- research-mab 08/05/1975 Corporal behaving strangely. Was bubbling away when pool was quite low, evidence indicated no recent eruption.
5998 12 May 1973 @ 1800 --- research-mab 05/12/1973 Each eruption of Veteran was followed by bubbling and runoff of Corporal. Dog’s Leg water level dropped a ft. as Corporal filled & overflowed – then filled up as overflow of Corporal ceased.
6468 23 Sep 1972 @ 1800 --- research-mab 09/23/1972 For several days I’ve noticed that Corporal Geyser was having greater than usual run-off at times, however every time I went by Corporal it would be 3”-4” below the edge. Today I witnessed the “eruption”. The pool started to fill and bubble until it rose to overflowing. The bubbling action was relatively gentle. Approx 20 gal of water ran down the run-off channel, the bubbling stopped, and the level dropped. A dull thumping was apparent during the bubbling activity. {no specific time}
6422 25 Aug 1972 @ 1800 --- research-mab 08/25/1972 Corporal Geyser – the heat has shifted to here – apparently from “The Dog’s Leg.” There is bubbling in pool of Corporal, the water in it is turbid, & there is now no runoff from The Dog’s Leg. In addition, The Dog’s Leg has lost most of its Sulphur deposit.
7320 24 Aug 1967 @ 1800 --- research-mab 08/24/1967 Corporal erupts frequently – perhaps 2 or 3 times an hour.
6648 29 Jun 1964 @ 0735 --- research-mab 06/29/1964 Corporal – Placed marker at 7:35a Trail was very wet.
EntrySourceLinkComment
21 May 2015 @ 1130 JSJ https://www.youtube.com/watch?v=ZTbLqppomoI Video compilation of Corporal Geyser's eruptions in the latest morning & earliest afternoon of 21 May 2015.
Baseline does not exist.