Last Known Eruption
6d 19h 55m ago

Latest Eruptions

Eruption DurationInterval
28 Jul 2021 @ 0520 ie1d 22h 4m
26 Jul 2021 @ 071610h 36m
25 Jul 2021 @ 2040 ie wc12h 50m
25 Jul 2021 @ 07502d 17h 37m
22 Jul 2021 @ 14138h 3m
22 Jul 2021 @ 061016h 52m
21 Jul 2021 @ 13185h 44m
21 Jul 2021 @ 073414h 35m
20 Jul 2021 @ 16598h 43m
20 Jul 2021 @ 081612h 8m
19 Jul 2021 @ 20088h 15m
19 Jul 2021 @ 11531h 59m
19 Jul 2021 @ 095423h 33m
18 Jul 2021 @ 10212h 11m
18 Jul 2021 @ 0810 ie2h 27m
18 Jul 2021 @ 0543 ie20h 55m
17 Jul 2021 @ 08481d 18h 39m
15 Jul 2021 @ 1409 ns5h 3m
15 Jul 2021 @ 09063h 11m 2d 19h 41m
12 Jul 2021 @ 1325 ie6h 54m
12 Jul 2021 @ 0631 ie2d 12h 7m
09 Jul 2021 @ 1824 ie12h 8m
09 Jul 2021 @ 0616 ie1d 18m
08 Jul 2021 @ 0558 ie3d 21h 37m
04 Jul 2021 @ 0821 ie1d 57m
03 Jul 2021 @ 0724 ie11h 56m
02 Jul 2021 @ 1928 ie1d 15m
01 Jul 2021 @ 19135h 10m
01 Jul 2021 @ 1403 ns2h 23m 3h 11m
01 Jul 2021 @ 10521h 34m 3h 34m
01 Jul 2021 @ 0718 ie12h 46m
30 Jun 2021 @ 1832 ie21h 57m
29 Jun 2021 @ 20352d 3h 46m
27 Jun 2021 @ 164914m
27 Jun 2021 @ 1635 ie3h 40m
27 Jun 2021 @ 12554h 59m
27 Jun 2021 @ 0756~2h 24m 12h 29m
26 Jun 2021 @ 1927 ns~1h 51m 5h 7m
26 Jun 2021 @ 1420 ns3h 36m
26 Jun 2021 @ 104414h 10m
25 Jun 2021 @ 20344h 4m
25 Jun 2021 @ 1629:117h 54m
25 Jun 2021 @ 0835 ie9h 37m
24 Jun 2021 @ 225813h 18m
24 Jun 2021 @ 094021h 44m
23 Jun 2021 @ 11564h 41m
23 Jun 2021 @ 0715 ie9h 20m
22 Jun 2021 @ 2155 ie>2h 7m 5h 35m
22 Jun 2021 @ 16202h 9m 3h 56m
22 Jun 2021 @ 12241h 42m 5h 46m
22 Jun 2021 @ 0638 ie~11h 50m
21 Jun 2021 @ 18486h 34m
21 Jun 2021 @ 12141d 4h 9m
20 Jun 2021 @ 0805 ie14h 56m
19 Jun 2021 @ 1709 ns3h 39m
19 Jun 2021 @ 13303h 23m
19 Jun 2021 @ 1007 ie21h 35m
18 Jun 2021 @ 1232 ie17h 41m
17 Jun 2021 @ 1851 ie2d 2h 12m
15 Jun 2021 @ 16393h 5m
15 Jun 2021 @ 133417h 30m
14 Jun 2021 @ 2004 ie2h 45m
14 Jun 2021 @ 171920h 33m
13 Jun 2021 @ 2046 ie2d 4h 42m
11 Jun 2021 @ 16044h 42m
11 Jun 2021 @ 1122 ns3h 11m
11 Jun 2021 @ 0811 ie17h 57m
10 Jun 2021 @ 14143h 6m
10 Jun 2021 @ 1108 ie3h 23m
10 Jun 2021 @ 0745 ie1d 19h 27m
08 Jun 2021 @ 12184d 21h 49m
03 Jun 2021 @ 1429 ie154d 22h 7m
30 Dec 2020 @ 1522 ie21d 28m
09 Dec 2020 @ 1454 ie38d 1h 46m
01 Nov 2020 @ 1308 ie22h 13m
31 Oct 2020 @ 1555 ie6h 43m
31 Oct 2020 @ 0912 ie3d 18h 1m
27 Oct 2020 @ 1511 ie2d 3h 35m
25 Oct 2020 @ 1136 ie8d 18h 21m
16 Oct 2020 @ 1715 ie6d 2h 0m
10 Oct 2020 @ 1515 ie37d 23h 43m
02 Sep 2020 @ 1532 ie8d 19h 24m
24 Aug 2020 @ 2008 ie52d 5h 31m
03 Jul 2020 @ 1437 ie31d 22h 25m
01 Jun 2020 @ 1611:44 ie4h 50m 53s
01 Jun 2020 @ 1120:51 ie34d 5h 3m
28 Apr 2020 @ 0617 ie wc179d 17h 14m
31 Oct 2019 @ 1303 ie3d 23h 52m
27 Oct 2019 @ 1311 ie2d 20h 27m
24 Oct 2019 @ 1644 ie2d 34m
22 Oct 2019 @ 1610 ie52d 35m
31 Aug 2019 @ 1535 ie3d 22h 11m
27 Aug 2019 @ 1724 ie2d 4h 5m
25 Aug 2019 @ 1319 ie16d 20h 25m
08 Aug 2019 @ 1654 ie5d 4h 5m
03 Aug 2019 @ 1249 ie2d 16h 12m
31 Jul 2019 @ 2037 ie33d 23h 40m
27 Jun 2019 @ 20573h 24m
27 Jun 2019 @ 17334h 14m
27 Jun 2019 @ 131916h 1m

Interval Statistics

Interval Count100
Min14m
Max179d 17h 14m
Mean7d 14h 57m
Median15h 28m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
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.
17985 21 Jun 2021 @ 2030 21 Jun 2021 @ 2103 ldgordon Water rising, front part of right pool vigorously boiling to ~a foot.
17978 21 Jun 2021 @ 1550 --- K.Cooper Low, very low.
17960 21 Jun 2021 @ 1210 --- Tara reached overflow
17955 21 Jun 2021 @ 1058 --- Tara Dropped below overflow, parasite vent blurping weakly
17931 19 Jun 2021 @ 2119 --- User34 In startup sequence, right pool quiet
17909 19 Jun 2021 @ 1201 --- Craigmon99 ie at this time from previous eruption. Parasite vent is still on however it is weaker. Regular south pressure pool vent is bubbling which is noteworthy as is north pressure pool.
17908 19 Jun 2021 @ 1146 --- Tara in overflow, parasite vent back on strong
17907 19 Jun 2021 @ 0935 --- Tara 0935 water level rising, parasite vent off, south pool slightly murky. after rising to overflow, the south pool had increasingly vigorous boiling and no bubbles from the parasite vent. during this time Thumping Hole was splashing to 1-1.5', and its water level rose enough to create runoff. Penta water level also up with slightly silty water
17867 17 Jun 2021 @ 1242 --- Craigmon99 On strong. Parasite vent strong almost to 3 feet
17854 16 Jun 2021 @ 1555 --- Craigmon99 Parasite on
17852 16 Jun 2021 @ 1548 --- Craigmon99 Parasite vent off
17836 15 Jun 2021 @ 1629 --- Craigmon99 Parasite off. 1636 Parasite will attempt to turn on but spasmodic will attempt to begin eruption, turning parasite off.
17833 15 Jun 2021 @ 1613 --- Craigmon99 Has turned off since my break. Parasite still on. All behavior of surrounding vents is consistent with previous notes with spasmodic off.
17822 15 Jun 2021 @ 1327 --- Craigmon99 Parasite vent off as spasmodic attempts to start
17817 15 Jun 2021 @ 1313 --- Craigmon99 Off. Parasite vent ie.
17778 14 Jun 2021 @ 1607 --- Craigmon99 Off from ie
17682 11 Jun 2021 @ 0824 --- TheHikingDude In the duration of the 8:11 eruption, I walked up to see the two main pools bursting to a foot at most, however 5 vents in the front were going bezerk, shooting water around 2 to 3 feet in the air very rapidly.
17639 10 Jun 2021 @ 1339 --- Graham In overflow.
13884 05 Oct 2019 @ 0832 --- jkgood There is a glove bobbing about in one of the small vents near the boardwalk :-/
13365 23 Aug 2019 @ 1516 --- EmilyW Spasmodic seems drained and low at this time when old tardy is ie
12916 01 Aug 2019 @ 1310 --- rbwhitaker Only the big vent on the right (as seen from the trail) is erupting. Maybe a foot below overflow.
12865 29 Jul 2019 @ 1048 --- rbwhitaker Two feet below overflow. Fairly quiet. Only two to three feet splashing from the back of the right vent and one foot from the back vent. Otherwise quiet.
11987 27 Jun 2019 @ 1319 27 Jun 2019 @ 1447 ldgordon The near constant back vent in the right pool was paused with occainsial spalshes until 1344. It had strong eruptive episodes with frequent pauses for the rest of the eruption.
11961 25 Jun 2019 @ 1845 --- Craigmon99 Off and draining
11940 24 Jun 2019 @ 2009 --- ldgordon In overflow
11927 23 Jun 2019 @ 1425 --- Tara Dropped below overflow around this time.
11899 21 Jun 2019 @ 1344 --- Craigmon99 Off during Old Tardy, beginning to drain along with most of the sawmill complex except notably Churn
11809 15 Jun 2019 @ 1059 --- William all vents on vigorously
11602 06 Jun 2019 @ 1749 --- ldgordon Water level dropping.
11513 02 Jun 2019 @ 1757 --- ldgordon Water level dropping
11534 02 Jun 2019 @ 0951 --- Janet Jones Splash from the left vent! First one I’ve seen since the dormancy in the Sawmill Group. Video on my Instagram account - https://www.instagram.com/p/ByOyx4RAa93/
11129 29 Apr 2019 @ 1354 --- Polly Back vent quiet & front vents on. (Was the opposite on the 27th.)
10926 27 Jan 2019 @ 0900 --- Graham Active all week up and down.
10648 21 Oct 2018 @ 1312 --- rbwhitaker Both pools full and overflowing. Right vent is bursting maybe 3 feet, left pool is quiet. Back vent is off and on. All of the holes in front of the left pool are on.
10635 20 Oct 2018 @ 1339 --- Biddle One pool and one small vent in vigorous eruption, everything else somewhat quiet.
10214 15 Sep 2018 @ 1437 --- Micah Kipple Dropped below overflow with all vents nearly dying.
9794 20 Aug 2018 @ 1821 --- TheHikingDude Heavy steaming from Spasmodic Geyser area. Possible minor eruption? Area usually doesn’t steam like this.
9480 05 Aug 2018 @ 1635 05 Aug 2018 @ 1750 Micah Kipple Spasmodic is perpetually erupting from the back vent within the righthand pool. The back vent between the two pools is occasionally erupting up to 2 meters. I have seen no other vents while sitting here.
4035 03 May 2017 @ 1605 --- mhreed I count 21 vents actively erupting.
3770 09 Oct 2016 @ 1223 09 Oct 2016 @ 1356 WillBoekel started overflow then ended.
3102 20 Jun 2016 @ 1715 --- WillBoekel started overflowing
2777 22 Apr 2016 @ 1635 --- WillBoekel end overflow
2770 21 Apr 2016 @ 0930 --- WillBoekel logger deployed for research permit #06094
2545 14 Oct 2015 @ 1151 --- SteveO Start of overflow
2502 10 Oct 2015 @ 1138 --- SteveO start of overflow
2499 10 Oct 2015 @ 0753 --- WillBoekel in overflow
2407 23 Sep 2015 @ 0729 23 Sep 2015 @ 0753 JimS Started overflowing at 0729. Was back below overflow at 0753.
2387 20 Sep 2015 @ 0653 --- JimS Was in overflow at 0653.
2384 19 Sep 2015 @ 1329 --- mhreed Reached overflow at 1329.
16626 19 Apr 1998 @ 0000 19 Apr 1998 @ 2359 JarnoO active
No attachments for this geyser.
Baseline does not exist.