Last Known Eruption
1y 359d 9h 29m ago

Latest Eruptions

Eruption DurationInterval
27 Apr 2019 @ 13542y 248d 20h 51m
21 Aug 2016 @ 17039y 60d 2h 33m
25 Jun 2007 @ 143059d 5h 34m
27 Apr 2007 @ 085668d 16h 19m
17 Feb 2007 @ 1537 ie222d 7h 21m
10 Jul 2006 @ 09164y 269d 20h 31m
14 Oct 2001 @ 124521d 22h 17m
22 Sep 2001 @ 14281m 2y 361d 5h 35m
27 Sep 1998 @ 085320d 16h 6m
06 Sep 1998 @ 164766d 1h 53m
02 Jul 1998 @ 1454266d 2h 21m
09 Oct 1997 @ 1233 ie13d 20h 7m
25 Sep 1997 @ 1626~1m 0s 26d 22h 25m
29 Aug 1997 @ 18013m 20d 23m
09 Aug 1997 @ 1738~3¾m1y 289d 7h 36m
25 Oct 1995 @ 1002 ie9d 18h 1m
15 Oct 1995 @ 16013m 7s 24d 23h 47m
20 Sep 1995 @ 16143m 43s 48d 34m
03 Aug 1995 @ 15406h 48m
03 Aug 1995 @ 0852315d 23h 48m
18 Jul 1995 @ 09046d 8h 33m
12 Jul 1995 @ 0031 ns8d 6h 37m
03 Jul 1995 @ 1754309d 2h 30m
28 Aug 1994 @ 15243m 8s 37d 20h 42m
21 Jul 1994 @ 1842 ie4m
21 Jul 1994 @ 18383½m308d 5h 22m
16 Sep 1993 @ 13163m 17s 8d 23h 16m
07 Sep 1993 @ 14001y 31d 19h 27m
06 Aug 1992 @ 18333m 15s 16d 6h 56m
21 Jul 1992 @ 1137~3m

Interval Statistics

Interval Count29
Min4m
Max9y 60d 2h 33m
Mean337d 2h 33m
Median37d 20h 42m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
14820 30 Jun 2020 @ 1917 30 Jun 2020 @ 1920 BrianR Blipping water but did not erupt with Grotto Fountain and South Grotto Fountain
EntrySourceLinkComment
21 Jul 1994 @ 1842 JSJ https://www.youtube.com/watch?v=Y6rCRwZXCGE Video by David Schwarz of Startling Geyser erupting during the early evening of 21 July 1994.
Baseline does not exist.