Last Known Eruption
4y 48d 23h 38m ago

Latest Eruptions

Eruption DurationInterval
31 Jul 2015 @ 1700 A55d 23h 25m
05 Jun 2015 @ 17358y 316d 2h 40m
26 Jul 2006 @ 14555d 25m
21 Jul 2006 @ 14304m 3d 2h 16m
18 Jul 2006 @ 1214 ie>4m 30y 98d 18h 4m
17 Apr 1976 @ 171050s

Interval Statistics

Interval Count5
Min3d 2h 16m
Max30y 98d 18h 4m
Mean7y 314d 18h 58m
Median55d 23h 25m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
6401 15 Sep 2017 @ 1137 --- TSBryan Given the action in Pebble and Gemini, Crack is remarkably silent.
2183 24 Aug 2015 @ 0959 --- Tara Single splash to about 8 inches, constant gurgling.
2141 15 Aug 2015 @ 1943 --- JSJ Crack spit at 1943.
2121 13 Aug 2015 @ 1015 --- JSJ Crack spit at 1015.
2089 11 Aug 2015 @ 1958 11 Aug 2015 @ 2131 JSJ Crack spits at 1958 & 2131.
2037 06 Aug 2015 @ 2101 --- JSJ Crack spit at 2101 (tiny, but visible).
1887 11 Jul 2015 @ 1958 --- JSJ Brief visible spitting at 1958.
1876 09 Jul 2015 @ 1906 --- JSJ Spitting very briefly visible from Crack Geyser at 1906.
1255 05 Aug 2007 @ 0900 --- BoekelUpload 9:00 marker missing; replaced
1254 04 Aug 2007 @ 0800 --- BoekelUpload marker in place 08:00
No attachments for this geyser.
Baseline does not exist.


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