Last Known Eruption
9d 23h 27m ago

Latest Eruptions

Eruption DurationInterval
16 Mar 2023 @ 1348 wc maj12d 22h 4m
03 Mar 2023 @ 1444126d 29m
28 Oct 2022 @ 1515 ie maj8d 21h 24m
19 Oct 2022 @ 1751 ie wc maj9d 1h 28m
10 Oct 2022 @ 1623 maj5m 1d 1h 58m
09 Oct 2022 @ 1425 maj3m 3d 4h 32m
06 Oct 2022 @ 0953 ns maj17h 51m
05 Oct 2022 @ 1602 maj~5m 6h 14m
05 Oct 2022 @ 0948 maj16h 54m
04 Oct 2022 @ 1654 maj4d 23h 45m
29 Sep 2022 @ 17092d 1h 59m
27 Sep 2022 @ 1510 maj21h 21m
26 Sep 2022 @ 1749 maj1d 2h 39m
25 Sep 2022 @ 1510 maj4m 23h 56m
24 Sep 2022 @ 1514 maj8m 1d 59m
23 Sep 2022 @ 1415 maj1d 3h 45m
22 Sep 2022 @ 1030 maj5m 20h 55m
21 Sep 2022 @ 1335 maj19h 44m
20 Sep 2022 @ 1751 maj5m 6h 17m
20 Sep 2022 @ 1134 maj3d 1m
17 Sep 2022 @ 1133 maj6m 4d 21h 13m
12 Sep 2022 @ 142021h 36m
11 Sep 2022 @ 1644 maj4m 5d 22h 26m
05 Sep 2022 @ 1818 maj3m 6h 6m
05 Sep 2022 @ 1212 maj4m 23h 44m
04 Sep 2022 @ 1228 ie maj34m
04 Sep 2022 @ 1154 maj22h 28m
03 Sep 2022 @ 1326 maj19h 58m
02 Sep 2022 @ 1728 maj5h 22m
02 Sep 2022 @ 1206 maj5m 22h 0m
01 Sep 2022 @ 1406 maj4h 29m
01 Sep 2022 @ 0937 maj3m 15h 58m
31 Aug 2022 @ 1739 maj5m 22h 21m
30 Aug 2022 @ 1918 maj3m 53s 16m
30 Aug 2022 @ 1902 maj3m 48s 3d 10h 53m
27 Aug 2022 @ 0809 maj7m 15h 53m
26 Aug 2022 @ 1616 maj3m 6h 31m
26 Aug 2022 @ 0945 maj3m 18h 33m
25 Aug 2022 @ 1512 maj3m 7h 6m
25 Aug 2022 @ 0806 maj5m 20h 44m
24 Aug 2022 @ 1122 maj2.5m 1d 20h 57m
22 Aug 2022 @ 1425 maj5.5m 1d 3h 49m
21 Aug 2022 @ 1036 maj8m 1d 1h 46m
20 Aug 2022 @ 0850 maj2.5m 3d 17h 12m
16 Aug 2022 @ 1538 maj8d 19h 54m
07 Aug 2022 @ 1944 maj1d 6h 41m
06 Aug 2022 @ 1303 maj3h 47m
06 Aug 2022 @ 0916 maj~6m 14h 3m
05 Aug 2022 @ 1913 maj~5m 5h 18m
05 Aug 2022 @ 1355 maj4m 5h 34m
05 Aug 2022 @ 0821 ie maj16h 24m
04 Aug 2022 @ 1557 maj3d 7h 11m
01 Aug 2022 @ 0846 maj19h 52m
31 Jul 2022 @ 1254 ie maj5d 3h 46m
26 Jul 2022 @ 0908 maj1d 20h 52m
24 Jul 2022 @ 1216 maj3m 4d 4h 12m
20 Jul 2022 @ 0804 ie3d 19h 35m
16 Jul 2022 @ 1229 maj4m 6h 5m
16 Jul 2022 @ 0624 ie maj>6m 14h 46m
15 Jul 2022 @ 1538 maj6m 6h 33m
15 Jul 2022 @ 0905 maj5.5m 15h 51m
14 Jul 2022 @ 1714 maj4.5m 7h 0m
14 Jul 2022 @ 1014 maj6.5m 9h 39m
14 Jul 2022 @ 0035 maj2m 53s 5h 40m
13 Jul 2022 @ 1855 maj3.5m 6h 35m
13 Jul 2022 @ 1220 maj7m 3h 49m
13 Jul 2022 @ 0831 maj5.5m 13h 23m
12 Jul 2022 @ 1908 maj7.5m 4h 52m
12 Jul 2022 @ 1416 maj4.5m 5h 52m
12 Jul 2022 @ 0824 maj3.5m 16h 3m
11 Jul 2022 @ 1621 maj3m 39m
11 Jul 2022 @ 1542 maj3m 4d 17m
07 Jul 2022 @ 1525 maj21h 47m
06 Jul 2022 @ 1738 maj6m 1d 22h 56m
04 Jul 2022 @ 1842 maj6m 11d 10m
23 Jun 2022 @ 1832 maj6m 20s 10m
23 Jun 2022 @ 1822 maj~4m 7h 11m
23 Jun 2022 @ 1111 ns maj2h 26m
23 Jun 2022 @ 0845 maj8d 12h 40m
14 Jun 2022 @ 2005 ie3d 2h 11m
11 Jun 2022 @ 1754 maj4m 1d 2h 32m
10 Jun 2022 @ 1522 maj7h 1m
10 Jun 2022 @ 0821 maj5m 30s 20h 58m
09 Jun 2022 @ 1123 maj1d 22h 12m
07 Jun 2022 @ 1311 maj6m 1d 1h 32m
06 Jun 2022 @ 1139 ie maj2d 1h 59m
04 Jun 2022 @ 0940 maj8m 40s 7d 14h 30m
27 May 2022 @ 1910 maj8h 9m
27 May 2022 @ 1101 maj1d 21h 3m
25 May 2022 @ 1358 maj7m 22h 47m
24 May 2022 @ 1511 maj6d 3h 26m
18 May 2022 @ 1145 maj4m 56s 6d 20h 37m
11 May 2022 @ 1508 maj3m 13s 6h 5m
11 May 2022 @ 0903 maj6m 19s 4d 12h 42m
06 May 2022 @ 2021 maj~5m 1d 7h 33m
05 May 2022 @ 1248 maj~6m 3d 20h 8m
01 May 2022 @ 1640 ie6d 32m
25 Apr 2022 @ 1608 maj23d 4h 50m
02 Apr 2022 @ 1118 ns67d 20h 16m
24 Jan 2022 @ 1402~6m 1d 1h 25m

Interval Statistics

Interval Count100
Min10m
Max126d 29m
Mean4d 4h 4m
Median22h 24m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
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.