Last Known Eruption
8d 14h 45m ago

Latest Eruptions

Eruption DurationInterval
18 May 2018 @ 2034 maj12h 3m
18 May 2018 @ 0831 maj12h 47m
17 May 2018 @ 1944 maj~9.5m 2d 2h 0m
15 May 2018 @ 1744 majAbout 4m11h 40m
15 May 2018 @ 0604 ns15h 3m
14 May 2018 @ 1501 maj4m 5h 17m
14 May 2018 @ 0944 maj3h 32m
14 May 2018 @ 0612 maj5m 19h 13m
13 May 2018 @ 1059 maj23h 59m
12 May 2018 @ 1100 maj3m 5h 10m
12 May 2018 @ 0550 maj20h 38m
11 May 2018 @ 0912 maj7m 13h 47m
10 May 2018 @ 1925 ie4h 13m
10 May 2018 @ 1512 ie1d 21h 8m
08 May 2018 @ 1804 ie maj7d 8h 44m
01 May 2018 @ 0920 maj1d 16h 37m
29 Apr 2018 @ 1643 ie23h 52m
28 Apr 2018 @ 1651 ie4h 46m
28 Apr 2018 @ 1205 ie1d 19h 20m
26 Apr 2018 @ 1645 ie82d 7h 20m
03 Feb 2018 @ 0825 maj3m 1d 21h 16m
01 Feb 2018 @ 1109 maj4m 121d 22h 4m
02 Oct 2017 @ 1405 ie maj3d 2h 41m
29 Sep 2017 @ 1124~12m 1d 21h 7m
27 Sep 2017 @ 1417 maj~3 1/2 m10m
27 Sep 2017 @ 1407 maj~4m 2d 41m
25 Sep 2017 @ 132623h 34m
24 Sep 2017 @ 1352 maj~ 7 m1d 22h 48m
22 Sep 2017 @ 1504 maj~ 4 m23h 59m
21 Sep 2017 @ 15053 1/2 - 4 m3d 1h 14m
18 Sep 2017 @ 1351 maj23h 2m
17 Sep 2017 @ 1449~4 1/2 m1d 2h 6m
16 Sep 2017 @ 12431d 22h 36m
14 Sep 2017 @ 1407 ie maj8h 28m
14 Sep 2017 @ 0539 maj1d 11h 11m
12 Sep 2017 @ 1828 maj~3 1/2 m5h 33m
12 Sep 2017 @ 1255 maj6m 19h 29m
11 Sep 2017 @ 1726 maj3.5m 4h 58m
11 Sep 2017 @ 1228 ie maj1d 22h 59m
09 Sep 2017 @ 1329 maj1d 18h 22m
07 Sep 2017 @ 1907 maj6m 8h 3m
07 Sep 2017 @ 1104 maj1d 1h 26m
06 Sep 2017 @ 0938 ie maj20h 12m
05 Sep 2017 @ 1326 maj1d 21h 1m
03 Sep 2017 @ 1625 maj4m 2d 23h 44m
31 Aug 2017 @ 1641 maj4h 6m
31 Aug 2017 @ 1235 maj3m 18h 57m
30 Aug 2017 @ 17383h 13m
30 Aug 2017 @ 1425 maj1d 3h 24m
29 Aug 2017 @ 1101 maj6m 15h 39m
28 Aug 2017 @ 1922 maj5h 27m
28 Aug 2017 @ 1355 maj~4m 21h 50m
27 Aug 2017 @ 1605 maj8h 11m
27 Aug 2017 @ 075416h 13m
26 Aug 2017 @ 1541 maj8h 13m
26 Aug 2017 @ 0728 maj1d 15h 41m
24 Aug 2017 @ 1547 maj10m 5h 51m
24 Aug 2017 @ 0956 maj4.5m 23h 7m
23 Aug 2017 @ 1049 maj3h 36m
23 Aug 2017 @ 0713 maj14h 47m
22 Aug 2017 @ 1626 maj5h 39m
22 Aug 2017 @ 1047 maj18h 51m
21 Aug 2017 @ 1556 maj6h 54m
21 Aug 2017 @ 0902 ns10h 19m
20 Aug 2017 @ 2243 maj1d 2h 55m
19 Aug 2017 @ 1948 maj1h 17m
19 Aug 2017 @ 1831 maj3m 1d 5h 52m
18 Aug 2017 @ 1239 maj1d 3h 54m
17 Aug 2017 @ 0845 maj1d 20h 44m
15 Aug 2017 @ 1201 maj4d 20h 43m
10 Aug 2017 @ 1518 maj3.5m 5d 1h 43m
05 Aug 2017 @ 13351d 3h 58m
04 Aug 2017 @ 0937 maj19h 27m
03 Aug 2017 @ 1410 maj1d 4h 53m
02 Aug 2017 @ 0917 maj14h 8m
01 Aug 2017 @ 1909 maj7h 20m
01 Aug 2017 @ 1149 maj5m 22h 44m
31 Jul 2017 @ 1305 maj8m 18h 27m
30 Jul 2017 @ 18385h 7m
30 Jul 2017 @ 1331 maj4m 3h 45m
30 Jul 2017 @ 0946 ie5m 21h 4m
29 Jul 2017 @ 1242 maj3m 2d 0m
27 Jul 2017 @ 1242 ie3d 22h 50m
23 Jul 2017 @ 1352 ie1d 12m
22 Jul 2017 @ 1340 maj2d 39m
20 Jul 2017 @ 1301 maj23h 25m
19 Jul 2017 @ 133615m
19 Jul 2017 @ 1321 ns maj19h 54m
18 Jul 2017 @ 1727 maj6m 5h 42m
18 Jul 2017 @ 1145 maj23h 45m
17 Jul 2017 @ 1200 maj3m 30s 20h 57m
16 Jul 2017 @ 1503 maj1d 10m
15 Jul 2017 @ 1453 maj3m 1d 2h 18m
14 Jul 2017 @ 12355m 22h 24m
13 Jul 2017 @ 1411 ns maj1d 20h 18m
11 Jul 2017 @ 1753 maj29m
11 Jul 2017 @ 1724 maj2h 27m
11 Jul 2017 @ 1457 maj1d 17m
10 Jul 2017 @ 1440 maj4d 6h 32m
06 Jul 2017 @ 0808 ns maj1d 18h 38m

Interval Statistics

Interval Count100
Min10m
Max121d 22h 4m
Mean3d 4h 23m
Median22h 34m

Latest Notes

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


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