Last Known Eruption
4d 23h 10m ago

Latest Eruptions

Eruption DurationInterval
07 Jul 2024 @ 175211d 6h 22m
26 Jun 2024 @ 113018h 10m
25 Jun 2024 @ 1720 ie1d 9h 44m
24 Jun 2024 @ 0736 ie1d 13h 45m
22 Jun 2024 @ 17517m
22 Jun 2024 @ 17448d 7h 34m
14 Jun 2024 @ 1010 ie1d 6m
13 Jun 2024 @ 10043d 21h 41m
09 Jun 2024 @ 1222:174m 7s
09 Jun 2024 @ 1218:101m 29s 2d 21h 33m
06 Jun 2024 @ 14454h 54m
06 Jun 2024 @ 0951 ie1d 14h 31m
04 Jun 2024 @ 192010h 4m
04 Jun 2024 @ 0916 ie29d 17h 43m
05 May 2024 @ 1533 ie6d 13m
29 Apr 2024 @ 152010d 1h 17m
19 Apr 2024 @ 1403 ie184d 5h 0m
18 Oct 2023 @ 090311d 21h 8m
06 Oct 2023 @ 1155 ie3h 53m
06 Oct 2023 @ 0802 ie5d 18h 43m
30 Sep 2023 @ 13192m 7m
30 Sep 2023 @ 13124m 4m
30 Sep 2023 @ 13082m 6m
30 Sep 2023 @ 13023m 5m
30 Sep 2023 @ 12572m 7m
30 Sep 2023 @ 12502m 5m
30 Sep 2023 @ 12453m 20d 23h 43m
09 Sep 2023 @ 1302 ie2d 23h 22m
06 Sep 2023 @ 13404d 23h 53m
01 Sep 2023 @ 134737d 2h 25m
26 Jul 2023 @ 11222d 21h 23m
23 Jul 2023 @ 1359 ie17d 1h 0m
06 Jul 2023 @ 1259 ie21d 3h 39m
15 Jun 2023 @ 0920 ie6d 12h 28m
08 Jun 2023 @ 20521m 32s 3h 2m
08 Jun 2023 @ 17502d 22h 53m
05 Jun 2023 @ 18571d 3h 16m
04 Jun 2023 @ 1541 ie2d 23m
02 Jun 2023 @ 151812d 18h 14m
20 May 2023 @ 2104 ie11h 10m
20 May 2023 @ 0954 ie2d 13h 21m
17 May 2023 @ 2033129d 4h 45m
08 Jan 2023 @ 1448 ie2h 49m
08 Jan 2023 @ 11591m 6d 2h 21m
02 Jan 2023 @ 0938 ie56d 21h 0m
06 Nov 2022 @ 1238 ns7d 19h 8m
29 Oct 2022 @ 1830 ie35d 23h 52m
23 Sep 2022 @ 18381d 3h 10m
22 Sep 2022 @ 1528 ie1d 21h 10m
20 Sep 2022 @ 1818 ie1d 4h 38m
19 Sep 2022 @ 1340 ie1d 18h 34m
17 Sep 2022 @ 1906 ie2d 8h 9m
15 Sep 2022 @ 10572d 19h 53m
12 Sep 2022 @ 1504 ie1d 19h 46m
10 Sep 2022 @ 1918 ie1h 4m
10 Sep 2022 @ 1814 ie1d 55m
09 Sep 2022 @ 17196m
09 Sep 2022 @ 17137m
09 Sep 2022 @ 17061d 3h 41m
08 Sep 2022 @ 1325 ie7d 18h 3m
31 Aug 2022 @ 1922 ie3d 8h 44m
28 Aug 2022 @ 1038 ie17h 7m
27 Aug 2022 @ 17313m
27 Aug 2022 @ 1728 ie3d 5h 31m
24 Aug 2022 @ 1157 ie6d 21h 11m
17 Aug 2022 @ 14469d 23h 22m
07 Aug 2022 @ 1524 ie14d 5h 51m
24 Jul 2022 @ 0933 ie2d 20h 0m
21 Jul 2022 @ 13334m
21 Jul 2022 @ 132911d 23h 58m
09 Jul 2022 @ 1331About a minute4d 23h 29m
04 Jul 2022 @ 1402 ns2d 2h 31m
02 Jul 2022 @ 1131 ie6d 15h 40m
25 Jun 2022 @ 1951 ie23h 12m
24 Jun 2022 @ 2039 ie1d 13m
23 Jun 2022 @ 2026 ie12h 24m
23 Jun 2022 @ 0802 ie8d 10h 12m
14 Jun 2022 @ 2150 ie8d 1h 55m
06 Jun 2022 @ 1955 ie2h 15m
06 Jun 2022 @ 17404m
06 Jun 2022 @ 1736 ie1d 5h 53m
05 Jun 2022 @ 1143 ie14h 6m
04 Jun 2022 @ 21371d 6h 25m
03 Jun 2022 @ 151210d 21h 21m
23 May 2022 @ 17515m
23 May 2022 @ 17465m
23 May 2022 @ 17413m 7m
23 May 2022 @ 17345m 7m
23 May 2022 @ 17278m
23 May 2022 @ 17196m
23 May 2022 @ 17137m
23 May 2022 @ 17061d 6h 54m
22 May 2022 @ 101215m
22 May 2022 @ 095731m
22 May 2022 @ 0926~2m 46m
22 May 2022 @ 0840 A1d 17h 6m
20 May 2022 @ 1534 ie32d 23h 53m
17 Apr 2022 @ 154193d 4h 59m
14 Jan 2022 @ 09426m
14 Jan 2022 @ 09365m

Interval Statistics

Interval Count100
Min3m
Max184d 5h 0m
Mean9d 1h 16m
Median1d 14h 8m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
35164 13 Jun 2024 @ 1002 --- CrisG quiet. gentle steam
35034 09 Jun 2024 @ 1217 --- CrisG gurgling no visible water
34933 06 Jun 2024 @ 1846 --- CrisG gurgling. no visible water
33757 07 Jan 2024 @ 1518 --- Graham Snow up to edge of opening. Appears to be dormant.
25407 12 May 2023 @ 1420 --- Janet Jones Gurgling continuously at depth, no water seen. Area around the vent has broken up some.
21419 22 May 2022 @ 0844 --- Micah Kipple New to me. "Mouth" has developed a shallow runoff channel flowing to the south to join with the runoff from doublet/pump.
19239 02 Sep 2021 @ 1107 02 Sep 2021 @ 1117 Graham Splashing at depth. filled, drained and splashed at depth again. Repeating cycle, then drained.
14770 29 Jun 2020 @ 1117 --- steve Mouth is off, although you can hear bubbling in the vent
14124 16 Feb 2020 @ 1104 --- User34 Stopped and completely drained for 30 seconds. Started while still empty.
12377 06 Jul 2019 @ 0657 --- lc ie every time I have been past it, 7 days
11667 08 Jun 2019 @ 1943 --- Graham Already off and drained.
11642 08 Jun 2019 @ 0502 --- Graham Not erupting. It has been ie most of the time.
10931 27 Jan 2019 @ 1300 --- Graham Not erupting
10908 24 Jan 2019 @ 1221 --- Graham not erupting
9361 01 Aug 2018 @ 0804 --- Barbara Lasseter crater empty
9107 10 Jul 2018 @ 1102 --- udo Totally empty.
8716 16 Jun 2018 @ 1124 --- CrisG Full and quiet
8660 13 Jun 2018 @ 1526 --- udo Pulsing but not erupting
8653 13 Jun 2018 @ 1026 --- CrisG empty.
8630 11 Jun 2018 @ 1114 --- CrisG empty.
5204 22 Aug 2017 @ 0859 --- CrisG full and calm waters. no palpitating.
4255 07 Jun 2017 @ 1835 --- CrisG empty hole
4254 07 Jun 2017 @ 1145 --- CrisG decent water levels, but water completely calm
3271 09 Jul 2016 @ 1201 --- udo Palpitating
3173 02 Jul 2016 @ 0954 --- mhreed Pulsing more vigorously today; some break the surface to a couple inches.
3047 11 Jun 2016 @ 0719 --- Micah Kipple Pulsing
2774 22 Apr 2016 @ 1122 --- udo Doming pulses
2734 15 Apr 2016 @ 1310 --- Siegmund Pulsating vigorously despite being drowned by runoff from above Marmot Cave
EntrySourceLinkComment
31 Jul 2019 @ 1936 JSJ https://www.youtube.com/watch?v=0gkuvv247ZQ Short video showing Mouth Geyser erupting during the evening of 31 July 2019.
07 Aug 2018 @ 1155 JSJ https://www.flickr.com/photos/jsjgeology/29639687567 Photo of Mouth Geyser erupting in the late morning of 7 August 2018.
07 Aug 2018 @ 1155 JSJ https://www.youtube.com/watch?v=iUpDwkDA6qk#t=3m21s Video clips (time stamp 3:21 to the end) of Mouth Geyser erupting during the late morning to mid-afternoon of 7 August 2018.
Baseline does not exist.