Last Known Eruption
86d 22h 53m ago

Latest Eruptions

Eruption DurationInterval
25 Jun 2021 @ 1140 ie21d 39m
04 Jun 2021 @ 1101 ie216d 20h 57m
30 Oct 2020 @ 1404 ie31d 23h 37m
28 Sep 2020 @ 1427 ie

Interval Statistics

Interval Count3
Min21d 39m
Max216d 20h 57m
Mean89d 23h 4m
Median31d 23h 37m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
19612 16 Sep 2021 @ 1135 --- cb empty
19541 13 Sep 2021 @ 1514 13 Sep 2021 @ 1518 CrisG crater empty at 1514, water einto crater at 1515:19. wobbling water, no blipping observed. Fearless water approx 2" below top of black rim with usual boil.
19528 13 Sep 2021 @ 1027 --- cb active. Pulsing with nice waves. pool is ~6" below the rim of the crater.
19383 08 Sep 2021 @ 1228 --- CrisG empty crater. Fearless is just below the top of the black rim with a usual boil.
19381 07 Sep 2021 @ 1731 --- CrisG low water, rocking of the pool. Fearless full to top of black rim with typical boil
19226 01 Sep 2021 @ 1629 --- MAB steamy- water briefly visible wobbling low in the crater before palpitating out of sight - channels dry - same scenario at 1925
18995 22 Aug 2021 @ 1916 --- MAB dry with steam - hot ground SW near boardwalk all sputtering- maybe from rains of late
18830 04 Aug 2021 @ 0856 --- MAB dry w steam - did not stay to see if water would rise
18786 01 Aug 2021 @ 1109 --- cb low pool palpitations. 1' below the rim. Drained at 1010
18737 30 Jul 2021 @ 0815 --- ypcaribou Empty & dry
18365 11 Jul 2021 @ 1551 --- cb empty
18323 09 Jul 2021 @ 1846 --- MAB water just visible to someone my height or taller for ~30s before disappearing
18333 09 Jul 2021 @ 0846 --- MAB dry with steam - west channels *may* be damp at least the soils around them were darker
18277 05 Jul 2021 @ 1529 --- cb empty, with steam
18256 03 Jul 2021 @ 1841 --- MAB Water came up, wobbled and disappeared as fast as it was seen
18260 03 Jul 2021 @ 0850 --- MAB Dry w steam - all channels all directions are dry
18151 28 Jun 2021 @ 1944 --- MAB At first glance, empty with steam Then visible water at 1944:20 rising just enough to see it, then palpitating out of sight 1944:52
18157 28 Jun 2021 @ 0836 --- MAB dry with steam - west channels dry
18088 25 Jun 2021 @ 1941 --- MAB empty with steam
17964 21 Jun 2021 @ 1432 --- CrisG Spring approx half full and palpitating, but no splashing. Fearless full to the inner part of black rim
17923 19 Jun 2021 @ 1903 --- MAB 1903 water observed so I started stopwatch: dropped @51s - still dropped@ 1:44 at 3m12s water visible and at 3:40 it palpitated out of sight
17929 19 Jun 2021 @ 0901 --- MAB one-third full - drained at 0902 - too steamy to see blurps or palpitating
17876 17 Jun 2021 @ 1412 --- CrisG no pooling of water noted, but a couple of splashes were noted above top of crater. no change in Fearless since last note.
17875 17 Jun 2021 @ 1138 --- CrisG empty. Fearless approx 6" below the black ring with approx 1ft boil.
17865 16 Jun 2021 @ 1527 --- CrisG empty. Fearless with more vigorous boiling.
17864 16 Jun 2021 @ 1227 --- CrisG spring nearly full to rim, palpitating, no splashing noted. Fearless boiling to about 1ft.
17804 15 Jun 2021 @ 1106 --- cb empty with a wet water ring in the vent.
17797 14 Jun 2021 @ 0903 --- MAB steamy on an already hot morning - all channels dry
17720 12 Jun 2021 @ 1846 --- MAB empty steamy @ 1844 - rising water 1845:05 for 1m44s then dropped - water never got out of the deep part of the crater into the shallower edges
17729 12 Jun 2021 @ 0903 --- MAB small bulging splash seen from low in the crater - otherwise no water visible- all channels dry
17455 04 Jun 2021 @ 1633 04 Jun 2021 @ 1700 MAB assumed filling at first sighting but dropped out of sight 1634 - at 1700 water visible to someone my height ~5'8" - dropped out of sight within seconds - a closed interval of . . . something
17458 04 Jun 2021 @ 1458 04 Jun 2021 @ 1502 MAB Empty when first seen - then started filling with palpitating and 1 small burst- then dropped out of sight- never filled more than halfway
17460 04 Jun 2021 @ 0925 --- MAB dry w steam
17357 01 Jun 2021 @ 2051 --- MAB half full lit with brilliant sunset color- as quick as I wrote it down it drained out of sight - could be called IE Near End but I don't know how fast it drains when it quits- will learn that- channels to the west all wet
17348 01 Jun 2021 @ 0908 --- MAB empty with steam
17273 30 May 2021 @ 1631 --- cb empty
17024 09 May 2021 @ 1300 --- cb empty
16971 30 Apr 2021 @ 0923 --- MAB Up and palpitating - Fearless down a foot- didn't notice a boil
16897 20 Apr 2021 @ 0943 --- MAB Palpitating. Fearless down about a foot with a 1 ft boil.
16822 24 Jan 2021 @ 1344 --- markwolf appears to be empty
16348 06 Oct 2020 @ 1320 --- cb Empty.
15699 23 Aug 2020 @ 0817 --- ypcaribou Full & palpitating
14610 12 Jun 2020 @ 0628 --- ypcaribou Empty and dry
14495 02 Jun 2020 @ 0844 --- ypcaribou Empty & dry
14496 01 Jun 2020 @ 1428 --- ypcaribou Empty & dry
13550 02 Sep 2019 @ 1605 --- CrisG pool full and palpitating.
13425 27 Aug 2019 @ 1724 --- MAB Palpitator empty but runoff area to west damp. Fearless full and IE. Chocolate Pots still splashing clear water above ground level
13394 25 Aug 2019 @ 0638 --- ypcaribou Full and palpitating
13381 24 Aug 2019 @ 1941 --- MAB Palpitator dry and empty, Fearless full and IE. Chocolate Pots west of Fearless still erupting clear water above ground level.
12977 02 Aug 2019 @ 1934 --- MAB Palpitator dry. Fearless full and ie. The Chocolate Pots behind Fearless were all in eruption - water visible above ground.
12849 28 Jul 2019 @ 1014 --- ypcaribou Full and flowing into runoff channel
12848 28 Jul 2019 @ 0643 --- ypcaribou Empty
12085 02 Jul 2019 @ 1907 --- nails Full and palpitating
12010 28 Jun 2019 @ 1026 28 Jun 2019 @ 1046 ypcaribou Full and palpitating
12011 28 Jun 2019 @ 0640 --- ypcaribou Empty
11618 07 Jun 2019 @ 0938 --- CrisG Pool nearly full and palpitating.
11356 26 May 2019 @ 1039 --- ypcaribou Empty
11357 26 May 2019 @ 0551 --- ypcaribou Full, palpitating, tiny splashing in middle
11314 22 May 2019 @ 0655 --- Kyle full, bubbling, and over flowing out the "back"
11313 21 May 2019 @ 0935 --- Kyle nearly full and bubbling
11312 20 May 2019 @ 0911 --- Kyle empty crater. runoff channel wet
6165 09 Sep 2017 @ 0825 --- ypcaribou Almost empty for over 5 minutes before we left. Water barely visible in bottom & not rising. Reminiscent of what it used to look like after Echinus had erupted when Echinus was active & predictable in the early 90's.
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Baseline does not exist.