Last Known Eruption
36m ago

Latest Eruptions

Eruption DurationInterval
01 May 2025 @ 0752 ie14h 35m
30 Apr 2025 @ 17171d 27m
29 Apr 2025 @ 1650 ie4h 42m
29 Apr 2025 @ 1208 ie19h 44m
28 Apr 2025 @ 1624 ie3h 44m
28 Apr 2025 @ 1240 ie2h 53m
28 Apr 2025 @ 0947 ie19h 51m
27 Apr 2025 @ 13566h 52m
27 Apr 2025 @ 0704 ie12h 59m
26 Apr 2025 @ 1805 ie6h 45m
26 Apr 2025 @ 1120 ie22h 43m
25 Apr 2025 @ 1237 ie1d 1h 57m
24 Apr 2025 @ 10401h 32m
24 Apr 2025 @ 0908 ie14h 32m
23 Apr 2025 @ 1836 ie5h 49m
23 Apr 2025 @ 1247 ie22h 33m
22 Apr 2025 @ 14144h 4m
22 Apr 2025 @ 1010 ie1d 23h 27m
20 Apr 2025 @ 1043 ie19h 43m
19 Apr 2025 @ 15001d 3h 38m
18 Apr 2025 @ 1122 ie>5h 35m 1h 52m
18 Apr 2025 @ 0930 ie6d 17h 0m
11 Apr 2025 @ 1630 ie46d 5h 15m
24 Feb 2025 @ 1015 ie10d 19h 35m
13 Feb 2025 @ 1440 ie34d 3h 51m
10 Jan 2025 @ 1049 ns3h 24m
10 Jan 2025 @ 0725 ie1d 17h 47m
08 Jan 2025 @ 13382h 2m
08 Jan 2025 @ 1136 ie2h 24m
08 Jan 2025 @ 0912 ie1d 17h 21m
06 Jan 2025 @ 15518h 26m
06 Jan 2025 @ 0725 ie16h 57m
05 Jan 2025 @ 1428 ie6h 29m
05 Jan 2025 @ 0759 ie17h 10m
04 Jan 2025 @ 1449 ns~1h 8m 6h 28m
04 Jan 2025 @ 0821 ie16h 55m
03 Jan 2025 @ 1526 ie3d 3h 27m
31 Dec 2024 @ 115913d 2h 15m
18 Dec 2024 @ 094413h 45m
17 Dec 2024 @ 195957d 21m
21 Oct 2024 @ 2038 ie10d 14h 25m
11 Oct 2024 @ 061314h 52m
10 Oct 2024 @ 1521 ie4d 22h 57m
05 Oct 2024 @ 1624 ns2h 52m
05 Oct 2024 @ 1332 ns~1h 23m 2h 36m
05 Oct 2024 @ 10561h 13m 2h 12m
05 Oct 2024 @ 0844 ie1d 46m
04 Oct 2024 @ 0758 ie19h 53m
03 Oct 2024 @ 1205 ie1d 22h 1m
01 Oct 2024 @ 1404 ie2h 46m
01 Oct 2024 @ 11181d 4h 6m
30 Sep 2024 @ 0712 ie1d 2m
29 Sep 2024 @ 0710 ie23h 25m
28 Sep 2024 @ 0745 ie1d 23h 16m
26 Sep 2024 @ 0829 ie21h 3m
25 Sep 2024 @ 1126 ie16h 54m
24 Sep 2024 @ 1832 ie8h 56m
24 Sep 2024 @ 0936 ie16h 35m
23 Sep 2024 @ 1701 ie8h 4m
23 Sep 2024 @ 0857 ie2d 19h 10m
20 Sep 2024 @ 1347 ie4h 18m
20 Sep 2024 @ 09291d 39m
19 Sep 2024 @ 0850 ns18h 27m
18 Sep 2024 @ 1423 ie2h 10m
18 Sep 2024 @ 1213 ie1d 2h 7m
17 Sep 2024 @ 1006 ie19h 54m
16 Sep 2024 @ 1412 ie5h 22m
16 Sep 2024 @ 085022h 34m
15 Sep 2024 @ 1016 ie1d 19h 2m
13 Sep 2024 @ 1514 ie22h 45m
12 Sep 2024 @ 1629 ie2h 5m
12 Sep 2024 @ 1424 ie2d 2h 21m
10 Sep 2024 @ 12032d 17h 23m
07 Sep 2024 @ 1840 ie9h 0m
07 Sep 2024 @ 09402h 53m
07 Sep 2024 @ 064716h 52m
06 Sep 2024 @ 1355 ns~1h 23m 1h 55m
06 Sep 2024 @ 120018h 14m
05 Sep 2024 @ 17462h 11m
05 Sep 2024 @ 1535 ie5h 0m
05 Sep 2024 @ 1035 ie17h 13m
04 Sep 2024 @ 1722 ie15m
04 Sep 2024 @ 1707 ie1d 2h 7m
03 Sep 2024 @ 1500 ie>4h 38m
03 Sep 2024 @ 1022 ie2h 14m
03 Sep 2024 @ 0808 ns1d 13h 26m
01 Sep 2024 @ 1842 ns1h 19m
01 Sep 2024 @ 1723 ie22h 53m
31 Aug 2024 @ 1830 ie2h 9m
31 Aug 2024 @ 1621 ie8h 57m
31 Aug 2024 @ 0724 ns13h 29m
30 Aug 2024 @ 1755 ie2h 53m
30 Aug 2024 @ 1502 ie1d 19h 41m
28 Aug 2024 @ 19218d 10m
20 Aug 2024 @ 191126d 12h 40m
25 Jul 2024 @ 0631 ie12d 18h 2m
12 Jul 2024 @ 1229 ns1d 23h 23m
10 Jul 2024 @ 1306 ie2h 26m
10 Jul 2024 @ 10404h 17m
10 Jul 2024 @ 0623 ie20h 31m

Interval Statistics

Interval Count100
Min15m
Max57d 21m
Mean2d 23h 1m
Median17h 3m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
38685 28 Apr 2025 @ 1939 --- Graham Not ie. Twilight still up. Drained so no Penta.
38482 18 Apr 2025 @ 1657 --- Graham Quit now.
38459 18 Apr 2025 @ 1005 --- Graham Quit recently
38329 27 Feb 2025 @ 1504 --- K.Cooper near ovfl
38185 10 Jan 2025 @ 1204 --- Graham Quit recently
38180 10 Jan 2025 @ 0814 --- Graham Not ie
38170 08 Jan 2025 @ 1217 --- Graham Quit now. Water levels dropping.
38161 06 Jan 2025 @ 1208 --- Graham Quit now.
37543 13 Oct 2024 @ 1040 --- K.Cooper no visible water
37090 20 Sep 2024 @ 1407 --- Graham Quit now.
37023 17 Sep 2024 @ 1147 --- Graham Quit now
36988 15 Sep 2024 @ 1257 --- Graham Quit now. Chance for Penta Mixed Phase coming up.
36950 13 Sep 2024 @ 1032 --- SteveO Not in eruption.
36790 06 Sep 2024 @ 1002 --- SteveO End at 1003.
35828 10 Jul 2024 @ 1147 --- Delta4Heavy85 Quit Now
35807 09 Jul 2024 @ 0813 --- Delta4Heavy85 Quiet, Group in Deep drain
35251 16 Jun 2024 @ 1343 --- Craigmon99 Rising quickly. Start up sequence engage
35168 13 Jun 2024 @ 1113 13 Jun 2024 @ 1115 Forestbewithyou It appears bubble shower vent is on. Some splashing from parasite vent but more like convective bubbling. Not a ton of splashing from parasite. 11:15 Parasite started having a roiling boil that reached a couple feet high. Bubble shower turned off
34888 04 Jun 2024 @ 1225 --- SantaFe108 End of eruption.
34730 28 May 2024 @ 1227 --- SteveO End at 1227.
34287 21 Apr 2024 @ 0936 --- SantaFe108 Start of overflow, not erupting yet.
34219 19 Apr 2024 @ 1715 --- SantaFe108 Shut off now.
28584 30 Sep 2023 @ 1620 --- Graham Not ie. Sawmill ie and group in deep drain.
28579 30 Sep 2023 @ 1124 --- Graham Off by 1124.
28543 29 Sep 2023 @ 1905 --- Graham End time.
28513 27 Sep 2023 @ 1410 --- Graham End time. Twilight still has water.
28392 21 Sep 2023 @ 1642 --- Graham Quit just before reaching overflow
28385 21 Sep 2023 @ 1148 --- Graham Not ie, Twilight down, Sawmill ie. Oval down deep and splashing.
28364 20 Sep 2023 @ 1330 --- Graham Off between 1316 and 1330. Group going into deep drain when Sawmill quits.
28332 18 Sep 2023 @ 1942 --- Graham End time
28320 18 Sep 2023 @ 1056 --- Graham Quit between 1036 and 1056. going into deep drain.
28238 12 Sep 2023 @ 1742 --- Graham End time
28029 05 Sep 2023 @ 0830 --- Graham End time.
28004 04 Sep 2023 @ 1546 --- Graham Quit now.
27362 31 Jul 2023 @ 2030 --- Brian In overflow
27319 30 Jul 2023 @ 0636 --- JimS Empty and steaming
26474 19 Jun 2023 @ 1845 --- Craigmon99 Beginning to drop
26335 15 Jun 2023 @ 1106 --- Craigmon99 Entering deep drain. Sawmill still ie
26271 12 Jun 2023 @ 1446 --- Graham Quit now.
26170 08 Jun 2023 @ 1625 --- Graham Quit now.
26095 06 Jun 2023 @ 1905 --- Graham Didn't drain much and back vent is doing light splashes from depth.
25672 21 May 2023 @ 1619 --- Graham Quit now. Water rose in Penta, Oval, and Spasmodic after Sawmill quit which was odd.
25345 06 May 2023 @ 1726 --- SantaFe108 Ended before this time.
25321 04 May 2023 @ 2019 --- Ajw Very strong boiling action in all 3 pools. Water also shooting out of 11 little vents towards the front of the left pool.
25283 30 Apr 2023 @ 1258 --- SantaFe108 Off before this time.
25256 27 Apr 2023 @ 1335 27 Apr 2023 @ 1410 DanS From high pool had at least 8 failed start attempts from various vents during Tardy long eruption. Thumping Hole was ie the entire time.
24920 16 Jan 2023 @ 1220 --- Graham Quit about now. Almost got to overflow.
24898 14 Jan 2023 @ 1319 --- Graham Quit about now.
24891 14 Jan 2023 @ 0812 --- Graham Looks like it overflowed earlier as there is no fresh snow in the runoff channel. 0759 still ie, both pools high and calm. Quit 0812.
24881 12 Jan 2023 @ 1539 --- Graham Quit recently.
24849 08 Jan 2023 @ 1639 --- Graham Quit now
24427 16 Oct 2022 @ 1712 --- SantaFe108 End of eruption.
24175 01 Oct 2022 @ 0745 --- Graham Recently quit. Sawmill still ie. Twilight dropping.
24154 29 Sep 2022 @ 0742 --- Graham End time
24011 22 Sep 2022 @ 1920 22 Sep 2022 @ 1935 CrisG playing from back vents only on arrival. by 1935, pools had drained
23997 22 Sep 2022 @ 1159 --- Graham End time.
23990 21 Sep 2022 @ 1057 --- Betty Almost all vents are empty
23873 16 Sep 2022 @ 1931 --- Graham Off before now.
23856 16 Sep 2022 @ 1128 --- Graham Quit at this time.
23844 15 Sep 2022 @ 1720 --- Graham Quit at this time.
23814 14 Sep 2022 @ 1054 --- Graham Quit at this time.
23793 13 Sep 2022 @ 1457 --- Graham Quit at this time.
23784 13 Sep 2022 @ 0650 --- Graham Looked ie but then off 0652. Nay have just been bursting from pools as it started not long after.
23773 12 Sep 2022 @ 1105 --- Stephen_Gemar Quit before 11:05
23733 11 Sep 2022 @ 1741 --- Graham off by 1741. Twilight going down.
23732 11 Sep 2022 @ 0951 --- Graham Quit at this time.
23712 10 Sep 2022 @ 1625 --- Graham Quit at 1625.
23700 10 Sep 2022 @ 0817 --- Graham End time
23686 09 Sep 2022 @ 1837 --- Graham Quit around now. Twilight dropping. Sawmill still ie.
23581 05 Sep 2022 @ 1259 --- User34 Both pools quickly drained. Left pool went from a foot below overflow to out of sight. Vent on front wall of right pool started cyclically jetting to the left almost horizontally
25200 25 Aug 2022 @ 1802 --- Craigmon99 Rumbling
23339 21 Aug 2022 @ 1711 --- Craigmon99 Pools low. Center vent erupting
23295 20 Aug 2022 @ 1050 --- Brando Down 3 feet with vigorous boiling
22001 17 Jun 2022 @ 1509 --- RMichaels Spasmodic just in overflow with only a few vents splashing. Started dropping 1512.
21886 10 Jun 2022 @ 1015 --- RMichaels Reached overflow at 1015 while ie. Dropped at 1024..
21794 06 Jun 2022 @ 1659 --- Graham Off by now. Group draining. Sawmill still ie.
21535 27 May 2022 @ 1357 --- Graham In overflow now.
21530 27 May 2022 @ 1212 --- Graham Just went into overflow.
21469 24 May 2022 @ 2005 --- Ajw All pools fully drained. Can hear some water sloshing in right side pool.
21367 19 May 2022 @ 1804 --- Graham Pools joined. Penta pooling water too.
21159 03 May 2022 @ 1930 --- Ajw North (left) pool fully drained South (right) pool very low water, with steam and churning. Central vent also drained.
21136 30 Apr 2022 @ 1535 --- User34 Water completely out of sight
20724 18 Jan 2022 @ 1029 --- Graham End 1029
20691 14 Jan 2022 @ 1646 --- Graham In deep drain with Twilight Spring. Sawmill still ie.
20679 12 Jan 2022 @ 1031 --- Graham Off now except right pool front vent doing angled splashing.
20012 17 Oct 2021 @ 0900 --- aferrara No visible water
19785 29 Sep 2021 @ 1109 --- Graham Drained deep.
19166 30 Aug 2021 @ 1335 --- Graham 1335 approx end time.
19102 27 Aug 2021 @ 1148 --- Graham Quit 1148
18841 05 Aug 2021 @ 1829 --- TinaN Water too low to see in either pool at start of Sawmill
18435 15 Jul 2021 @ 1217 --- Micah Kipple Front vents shut down. Eruption end.
18416 14 Jul 2021 @ 0707 --- SteveO Right pool overflowing into left pool. Left pool down 12 inches.
18405 13 Jul 2021 @ 0637 --- SteveO Right vent down about 2 feet and bursting. Left vent down about 4 feet and boiling vigorously.
18396 12 Jul 2021 @ 1830 --- SteveO Draining.
18383 12 Jul 2021 @ 0915 --- Tara Bubble shower vent active
18247 02 Jul 2021 @ 1752 --- Graham Not erupting
18101 26 Jun 2021 @ 0755 --- Graham Approx end time.
18034 22 Jun 2021 @ 2009 --- Tara water levels recovering from drain in group (Spasmodic, Oval, Thumping Hole, Dog Bone, Penta, Sawmill, Tardy). Parasite vent cycling through moderate to strong splashing.
18005 22 Jun 2021 @ 0952 22 Jun 2021 @ 1007 ldgordon Right pool almost out of sight, parasite exposed in left pool. Churn and oval continue to drop. Twilight remains at normal level
18004 22 Jun 2021 @ 0928 --- ldgordon New back bubbles turned on.
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Baseline does not exist.