Last Known Eruption
44d 3h 26m ago

Latest Eruptions

Eruption DurationInterval
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
26 Jun 2019 @ 21183h 58m
26 Jun 2019 @ 172023h 46m
25 Jun 2019 @ 1734 ns7h 24m
25 Jun 2019 @ 1010 ie3d 17h 29m
21 Jun 2019 @ 16413h 34m
21 Jun 2019 @ 1307 ie1d 1h 38m
20 Jun 2019 @ 1129 ns19h 52m
19 Jun 2019 @ 1537 ns15d 2h 45m
04 Jun 2019 @ 1252 ie2d 3h 3m
02 Jun 2019 @ 0949 ie2d 13h 24m
30 May 2019 @ 202523h 51m
29 May 2019 @ 20343d 6h 4m
26 May 2019 @ 1430 ie5d 56m
21 May 2019 @ 1334 ie13d 33m
08 May 2019 @ 1301 ie18d 5h 9m
20 Apr 2019 @ 0752 ie155d 16h 32m
15 Nov 2018 @ 1420 ie wc12d 4h 38m
03 Nov 2018 @ 1042 ie23h 54m
02 Nov 2018 @ 1048 ie21h 8m
01 Nov 2018 @ 1340 ie3d 20h 48m
28 Oct 2018 @ 1652 ie1h 23m
28 Oct 2018 @ 1529 ie50d 50m
08 Sep 2018 @ 1439 ie3d 18h 7m
04 Sep 2018 @ 2032 ie1d 6h 13m
03 Sep 2018 @ 1419 ie20h 4m
02 Sep 2018 @ 1815 ie1d 9h 21m
01 Sep 2018 @ 0854 ie1d 20h 38m
30 Aug 2018 @ 1216 ie22h 17m
29 Aug 2018 @ 1359 ie1d 29m
28 Aug 2018 @ 1330 ie21h 56m
27 Aug 2018 @ 1534 ie1d 2h 19m
26 Aug 2018 @ 1315 ie24d 17h 53m
01 Aug 2018 @ 1922 ie55d 12h 3m
07 Jun 2018 @ 0719 ie1d 13h 37m
05 Jun 2018 @ 1742 ie11d 2h 59m
25 May 2018 @ 1443 ie wc149d 34m
27 Dec 2017 @ 13091d 3h 9m
26 Dec 2017 @ 1000 ie108d 17h 11m
08 Sep 2017 @ 1749 ie3d 6h 55m
05 Sep 2017 @ 1054 ie2d 22h 21m
02 Sep 2017 @ 1233 ie1d 20h 50m
31 Aug 2017 @ 1543 ie1d 3h 8m
30 Aug 2017 @ 1235 ie1d 22h 4m
28 Aug 2017 @ 1431 ie22h 37m
27 Aug 2017 @ 1554 ie4h 25m
27 Aug 2017 @ 1129 ie16h 12m
26 Aug 2017 @ 1917 ie6d 10h 17m
20 Aug 2017 @ 0900 ie8d 16h 50m
11 Aug 2017 @ 1610 ie53m
11 Aug 2017 @ 1517 ie2d 1h 26m
09 Aug 2017 @ 1351 ie8d 22h 48m
31 Jul 2017 @ 1503 ie93d 7h 43m
29 Apr 2017 @ 0720 ie6d 21h 40m
22 Apr 2017 @ 0940 ie1d 2h 9m
21 Apr 2017 @ 0731 ie24d 16h 34m
27 Mar 2017 @ 1457 ie wc102d 4h 31m
15 Dec 2016 @ 0925:41 E31m 1h 45m 0s
15 Dec 2016 @ 0740:41 E41m 3d 21h 28m 0s
11 Dec 2016 @ 1012:41 E14m 2h 32m 0s
11 Dec 2016 @ 0740:41 E34m 17h 33m 0s
10 Dec 2016 @ 1407:41 E3h 9m 7h 18m 0s
10 Dec 2016 @ 0649:41 E4h 56m 10h 40m 0s
09 Dec 2016 @ 2009:41 E1h 22m 14h 34m 0s
09 Dec 2016 @ 0535:41 E40m 2h 4m 0s
09 Dec 2016 @ 0331:41 E46m 6h 48m 0s
08 Dec 2016 @ 2043:41 E3h 7m 3h 23m 0s
08 Dec 2016 @ 1720:41 E1h 22m 3h 23m 0s
08 Dec 2016 @ 1357:41 E1h 18m 2h 52m 0s
08 Dec 2016 @ 1105:41 E52m 15h 54m 0s
07 Dec 2016 @ 1911:41 E6m 1d 6h 20m 0s
06 Dec 2016 @ 1251:41 E37m 3h 33m 0s
06 Dec 2016 @ 0918:41 E1h 20m 3h 30m 0s
06 Dec 2016 @ 0548:41 E1h 19m 3h 27m 0s
06 Dec 2016 @ 0221:41 E1h 14m 3h 27m 0s
05 Dec 2016 @ 2254:41 E1h 7m 3h 15m 0s
05 Dec 2016 @ 1939:41 E1h 12m 3h 21m 0s
05 Dec 2016 @ 1618:41 E1h 22m 3h 10m 0s
05 Dec 2016 @ 1308:41 E1h 11m 2h 55m 0s
05 Dec 2016 @ 1013:41 E1h 1m 2h 18m 0s
05 Dec 2016 @ 0755:41 E43m 2h 49m 0s
05 Dec 2016 @ 0506:41 E10m 6h 2m 0s
04 Dec 2016 @ 2304:41 E2h 19m 2h 29m 0s
04 Dec 2016 @ 2035:41 E46m 21h 22m 0s
03 Dec 2016 @ 2313:41 E17m 21h 7m 0s
03 Dec 2016 @ 0206:41 E13m 14h 58m 0s
02 Dec 2016 @ 1108:41 E2h 29m 3h 4m 0s
02 Dec 2016 @ 0804:41 E1h 7m 3h 29m 0s
02 Dec 2016 @ 0435:41 E1h 20m 3h 20m 0s
02 Dec 2016 @ 0115:41 E1h 15m 3h 12m 0s
01 Dec 2016 @ 2203:41 E1h 11m 3h 35m 0s
01 Dec 2016 @ 1828:41 E1h 23m 3h 24m

Interval Statistics

Interval Count100
Min53m
Max155d 16h 32m
Mean10d 42m
Median23h 48m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
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 --- Archer 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 --- Archer Reached overflow at 1329.
No attachments for this geyser.
Baseline does not exist.


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