Last Known Eruption
3d 14h 5m ago

Interval Statistics

Interval Count100
Min12m
Max35d 3h 3m
Mean2d 21h 35m
Median1d 51m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
38045 20 Dec 2024 @ 1318 --- K.Cooper all little buddies on
37991 12 Dec 2024 @ 1300 --- BrandonC Bubblers are on strong
37303 01 Oct 2024 @ 0933 01 Oct 2024 @ 0937 Lizzysa Erupting
36367 11 Aug 2024 @ 0848 --- CraigC 2 quick loud explosive splashes
35386 20 Jun 2024 @ 1721 --- Craigmon99 Small vents in front of cone started now
33823 16 Jan 2024 @ 1319 --- K.Cooper little buddies on
24004 22 Sep 2022 @ 1740 22 Sep 2022 @ 1900 CrisG no major so far. The "little buddies" are still on, but light is starting to fail and more rain eminent so I'm calling it.
23976 21 Sep 2022 @ 0900 --- TamlynP eruption complete
22614 16 Jul 2022 @ 1159 --- Brando Almost went, but didnt. 2 of the 3 "buddies" of Rocket are erupting, possible eruption soon.
20137 27 Oct 2021 @ 1350 --- steve Observing from Grand either a Rocket Major or a big Grotto Fountain
19482 11 Sep 2021 @ 1733 11 Sep 2021 @ 1739 User34 Having big sporadic bursts while Grotto was "off", then two of the "Little Buddies" came on strong as Grotto restarted
17687 12 Jun 2021 @ 0644 --- CraigC water spitting out aggressively from the right "mouth" vent
16877 17 Apr 2021 @ 1058 17 Apr 2021 @ 1100 User34 Seemed to want to major again, some big heavy splashes during this time
15964 04 Sep 2020 @ 1900 04 Sep 2020 @ 2035 William no rocket maj during this time, grotto still ie when I left.
13231 14 Aug 2019 @ 1256 --- JarnoO (wc) Possible eruption (start) at this time, just between two cam outages. Column appeared at the right spot for Rocket and I may have seen some water in there on the still frame.
11593 05 Jun 2019 @ 1220 05 Jun 2019 @ 1606 TinaN No eruption during the first 3h 46m of Grotto
11585 04 Jun 2019 @ 1613 04 Jun 2019 @ 1846 TinaN Watched entire Grotto eruption and didn't see a Rocket major
8875 18 Jun 2018 @ 1815 --- Polly Possible Rocket (from Inn parking lot)
8874 18 Jun 2018 @ 1354 --- Polly Possible Rocket 1354 ie. (From Inn parking lot - steam in Grotto area - straight up)
7696 24 Sep 2017 @ 1707 --- Polly Tall Rocket splash (15-20').
4451 11 Jul 2017 @ 1724 --- Kitt B Rocket erupted a couple minutes before Grotto started and another Rocket at 1753.
2254 01 Sep 2015 @ 1341 --- BB We were at Tilt's Baby and saw water spikes above the trees in the Grotto area, d ~ 8m, maybe a Rocket major?
2150 14 Aug 2015 @ 1215 --- JSJ Already off at 1215.
EntrySourceLinkComment
15 Aug 2020 @ 1702 JSJ https://www.youtube.com/watch?v=UejD5KhAYwg Video by Craig Corless of Rocket Geyser's 5:02 PM-onward major eruption on 15 August 2020.
11 Aug 2014 @ 1357 JSJ https://www.youtube.com/watch?v=qhm8eipfeWo Video that includes clips showing Rocket Geyser's 1:57 to 2:04 PM major eruption on 11 August 2014.
11 Aug 2014 @ 1357 JSJ https://www.flickr.com/photos/jsjgeology/15278920020 Photo (1 of 9) of Rocket Geyser's 1:57 to 2:04 PM major eruption on 11 August 2014.
BaselineDistance (ft)Description
Bike Path 100On the edge of the bike path close to the end of the Grotto Fountain bench.