Last Known Eruption
11h 46m ago

Latest Eruptions

Eruption DurationInterval
30 Apr 2025 @ 1419 ie2d 18h 2m
27 Apr 2025 @ 2017 ie1d 2h 5m
26 Apr 2025 @ 18125h 6m
26 Apr 2025 @ 1306 ie2d 1h 46m
24 Apr 2025 @ 1120 ie18h 0m
23 Apr 2025 @ 1720 ie46m
23 Apr 2025 @ 1634 ie1d 1h 54m
22 Apr 2025 @ 14401d 22h 39m
20 Apr 2025 @ 1601 ie3h 29m
20 Apr 2025 @ 123220m
20 Apr 2025 @ 12121h 32m
20 Apr 2025 @ 1040 ie1d 19h 32m
18 Apr 2025 @ 150822m
18 Apr 2025 @ 144621m
18 Apr 2025 @ 142525m
18 Apr 2025 @ 140023m
18 Apr 2025 @ 133721m
18 Apr 2025 @ 131621m
18 Apr 2025 @ 12554m 179d 22h 38m
20 Oct 2024 @ 141721m
20 Oct 2024 @ 135618m
20 Oct 2024 @ 13384d 21h 46m
15 Oct 2024 @ 15523h 10m
15 Oct 2024 @ 1242 ie2d 1h 12m
13 Oct 2024 @ 1130 ie19h 28m
12 Oct 2024 @ 16022d 1h 24m
10 Oct 2024 @ 14382d 41m
08 Oct 2024 @ 135720m
08 Oct 2024 @ 133738m
08 Oct 2024 @ 1259 ie3h 31m
08 Oct 2024 @ 0928 ie4d 19h 33m
03 Oct 2024 @ 1355 maj4m 16m
03 Oct 2024 @ 1339 maj4m 16m
03 Oct 2024 @ 1323 maj3m 17m
03 Oct 2024 @ 1306 maj4m 16m
03 Oct 2024 @ 1250 maj3m 14m
03 Oct 2024 @ 1236 min2m
03 Oct 2024 @ 1234 min3m
03 Oct 2024 @ 1231 min2m
03 Oct 2024 @ 1229 min5m
03 Oct 2024 @ 1224 min4m
03 Oct 2024 @ 1220 ini min1m 2d 18h 56m
30 Sep 2024 @ 1724 ie1h 29m
30 Sep 2024 @ 1555 ie3d 2h 55m
27 Sep 2024 @ 1300 ie4h 16m
27 Sep 2024 @ 0844 ie14h 2m
26 Sep 2024 @ 1842 ie1d 4h 29m
25 Sep 2024 @ 141318m
25 Sep 2024 @ 135518m
25 Sep 2024 @ 13371h 58m
25 Sep 2024 @ 1139 ie21h 31m
24 Sep 2024 @ 1408 ie2h 27m
24 Sep 2024 @ 11412d 19h 53m
21 Sep 2024 @ 1548 ie1d 9h 19m
20 Sep 2024 @ 062922h 13m
19 Sep 2024 @ 0816 ns3d 20h 27m
15 Sep 2024 @ 1149 ie1d 20h 25m
13 Sep 2024 @ 152421m
13 Sep 2024 @ 150316m
13 Sep 2024 @ 1447 ie6d 42m
07 Sep 2024 @ 140520m
07 Sep 2024 @ 134521h 28m
06 Sep 2024 @ 1617 ie1d 1h 38m
05 Sep 2024 @ 1439 ns2m 3h 32m
05 Sep 2024 @ 11072h 3m
05 Sep 2024 @ 0904 ie22h 40m
04 Sep 2024 @ 102419m
04 Sep 2024 @ 10053h 1m
04 Sep 2024 @ 07043d 19h 22m
31 Aug 2024 @ 114216m
31 Aug 2024 @ 1126 min5m
31 Aug 2024 @ 112115m
31 Aug 2024 @ 1106 min6m
31 Aug 2024 @ 110014m
31 Aug 2024 @ 1046 min4m
31 Aug 2024 @ 1042 min3m
31 Aug 2024 @ 103915m
31 Aug 2024 @ 1024 min5m
31 Aug 2024 @ 101920m
31 Aug 2024 @ 095914m
31 Aug 2024 @ 0945 min14h 0m
30 Aug 2024 @ 1945 ie2d 6h 26m
28 Aug 2024 @ 131919h 56m
27 Aug 2024 @ 17231h 43m
27 Aug 2024 @ 1540 ie1d 3h 48m
26 Aug 2024 @ 1152 ns3m 3d 19h 33m
22 Aug 2024 @ 1619 ie3d 11m
19 Aug 2024 @ 1608 ie1d 4h 41m
18 Aug 2024 @ 112720m
18 Aug 2024 @ 110721m
18 Aug 2024 @ 10462d 31m
16 Aug 2024 @ 101519m
16 Aug 2024 @ 0956 ie21m
16 Aug 2024 @ 09352h 58m
16 Aug 2024 @ 0637 ie2d 17h 19m
13 Aug 2024 @ 1318 ie22h 57m
12 Aug 2024 @ 14211d 12m
11 Aug 2024 @ 140918m
11 Aug 2024 @ 135119m
11 Aug 2024 @ 133217h 51m

Interval Statistics

Interval Count100
Min2m
Max179d 22h 38m
Mean2d 15h 3m
Median2h 15m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
38164 06 Jan 2025 @ 1010 06 Jan 2025 @ 1159 Graham No eruption during this time.
37343 03 Oct 2024 @ 1225 --- Graham Another minor.
37342 03 Oct 2024 @ 1221 --- Graham Another minor. GT merged it.
28031 05 Sep 2023 @ 1319 --- Graham Looks like series ended when Castle erupted.
26546 20 Jun 2023 @ 1345 20 Jun 2023 @ 1638 JSJ All closed intervals.
24030 23 Sep 2022 @ 0730 23 Sep 2022 @ 1730 RMichaels No eruptions of Gizmo during this time.
22975 02 Aug 2022 @ 0800 02 Aug 2022 @ 1200 RMichaels No eruptions observed.
22915 28 Jul 2022 @ 0720 28 Jul 2022 @ 1110 RMichaels No eruptions observed.
22078 22 Jun 2022 @ 0900 22 Jun 2022 @ 2230 RMichaels Gizmo had no observed eruptions during this time and did not appear to be active.
22007 17 Jun 2022 @ 1800 --- RMichaels Does not appear to be active this afternoon.
21979 13 Jun 2022 @ 2025 13 Jun 2022 @ 2125 RMichaels No eruptions of Gizmo during this time.
19592 15 Sep 2021 @ 1807 15 Sep 2021 @ 1825 Graham Having 2 to 4min intervals when I walked up. Muxh shorter than usual.. Then a longer interval after this.
19037 24 Aug 2021 @ 1200 24 Aug 2021 @ 1530 William No activity during this time, started to try to erupt at 15:30
18680 26 Jul 2021 @ 1341 26 Jul 2021 @ 1425 aferrara Gizmo filled and overflowed rapidly as Castle started, and remained at high water throughout the eruption. After Castle transitioned to steam (1356) it drained. Gizmo slowly filled after that, beginning to expel water by 1409. No eruptions observed before I left at 1425.
17902 19 Jun 2021 @ 0750 --- User34 First overflow
17532 07 Jun 2021 @ 0740 07 Jun 2021 @ 1540 Graham No eruption seen during this period.
4011 23 Apr 2017 @ 0954 --- Janet Jones Microbes growing in the pool that can erupt/splash with Gizmo.
2675 11 Feb 2016 @ 1457 --- WillBoekel gizmo's pressure pool is orange in color
2340 13 Sep 2015 @ 1442 --- LotusBaker appears to have minors about 5 to 8 minutes after long period starts
1561 04 May 2015 @ 1425 04 May 2015 @ 1434 Janet Jones Gizmo was erupting about every two minutes during this time for a duration of about 30 seconds each with each ending in a few seconds of steam. Sometimes "Gizmo's Pool" erupted and sometimes not. (Was there a small pool with Gizmo before??? Have to check photos on that). Yet two other times at Gizmo, no eruptions happened for the 10-15 min I was there. More to come on this on the GeyserWatch.com blog as I have time.
16625 19 Apr 1998 @ 0000 19 Apr 1998 @ 2359 JarnoO active
EntrySourceLinkComment
10 Aug 2018 @ 1236 JSJ https://www.youtube.com/watch?v=iAIe5nZKBZU Short video showing Gizmo Geyser erupting in the early afternoon on 10 August 2018.
11 Aug 2014 @ 0828 JSJ https://www.youtube.com/watch?v=lZThgq4YZKo#t=3m23s Clip 13 of this video compilation (= time stamp 3:23 to the end) shows Gizmo Geyser's 8:28 AM eruption on 11 August 2014.
11 Aug 2014 @ 0822 JSJ https://www.youtube.com/watch?v=lZThgq4YZKo#t=1m42s Clips 6-12 of this video compilation (= time stamp 1:42 to 3:22) show Gizmo Geyser's 8:22 to 8:26 AM eruption on 11 August 2014.
11 Jul 2014 @ 1830 JSJ https://www.youtube.com/watch?v=lZThgq4YZKo Clips 1-5 of this video compilation (= beginning to time stamp 1:41) show Gizmo Geyser in eruption from 6:30 to 6:34 PM on 11 July 2014.
11 Jul 1993 @ 1746 JSJ https://www.youtube.com/watch?v=lOWSBs-_1LU Video by David Schwarz of Gizmo Geyser's 5:46 PM-onward eruption on 11 July 1993.
27 Apr 2014 @ 0759 WillBoekel https://www.youtube.com/watch?v=yX4g70y6QsI Gizmo
Baseline does not exist.