Last Known Eruption
155d 13h 12m ago

Latest Eruptions

Eruption DurationInterval
15 Oct 2023 @ 1158 ie7d 23h 12m
07 Oct 2023 @ 1246 ie1d 1h 38m
06 Oct 2023 @ 1108 ie1d 36m
05 Oct 2023 @ 1032 ie4d 23h 15m
30 Sep 2023 @ 11174d 22m
26 Sep 2023 @ 10554d 1h 9m
22 Sep 2023 @ 0946 ie17d 18h 48m
04 Sep 2023 @ 1458 ie1d 19m
03 Sep 2023 @ 1439 ie20h 52m
02 Sep 2023 @ 1747 ie36d 23h 7m
27 Jul 2023 @ 18404d 6h 56m
23 Jul 2023 @ 1144 ie26d 15h 18m
26 Jun 2023 @ 2026 ie7d 2h 15m
19 Jun 2023 @ 1811 ie12d 2h 48m
07 Jun 2023 @ 1523 ie1d 5h 11m
06 Jun 2023 @ 1012 ie20h 45m
05 Jun 2023 @ 1327 ie16h 34m
04 Jun 2023 @ 205313m
04 Jun 2023 @ 20401h 22m
04 Jun 2023 @ 1918 ie9h 39m
04 Jun 2023 @ 0939 ie10d 13h 19m
24 May 2023 @ 2020 ie9h 16m
24 May 2023 @ 1104 ie3d 15h 33m
20 May 2023 @ 1931 ie5d 3h 55m
15 May 2023 @ 1536 ie1d 5h 11m
14 May 2023 @ 102513d 14h 51m
30 Apr 2023 @ 1934 ie5h 11m
30 Apr 2023 @ 1423 ie2d 4h 12m
28 Apr 2023 @ 1011 ie221d 21h 33m
18 Sep 2022 @ 1238 ie325d 20h 14m
27 Oct 2021 @ 1624 ie56m
27 Oct 2021 @ 1528 ie24m
27 Oct 2021 @ 1504 ns1h 40m
27 Oct 2021 @ 1324 ie44m
27 Oct 2021 @ 1240 ie16m
27 Oct 2021 @ 1224 ie14m
27 Oct 2021 @ 1210 ie23m
27 Oct 2021 @ 1147 ie33d 17h 37m
23 Sep 2021 @ 1810 ie13d 8h 54m
10 Sep 2021 @ 0916 ns11d 28m
30 Aug 2021 @ 0848 ie5d 21h 5m
24 Aug 2021 @ 1143 ie25d 23h 49m
29 Jul 2021 @ 1154 ie12d 20h 24m
16 Jul 2021 @ 1530 ie40d 3h 16m
06 Jun 2021 @ 1214 ie2d 0m
04 Jun 2021 @ 1214 ie214d 18h 9m
01 Nov 2020 @ 1705 ie6m
01 Nov 2020 @ 1659 ie24d 8h 5m
08 Oct 2020 @ 095416h 54m
07 Oct 2020 @ 1700 ie33m
07 Oct 2020 @ 1627 ie97d 4h 17m
02 Jul 2020 @ 1210 ie1d 39m
01 Jul 2020 @ 1131 ie1d 22h 51m
29 Jun 2020 @ 12401h 15m
29 Jun 2020 @ 11251h 39m
29 Jun 2020 @ 0946241d 18h 51m
31 Oct 2019 @ 1455 ie10m
31 Oct 2019 @ 1445 ie7d 23h 54m
23 Oct 2019 @ 14511d 22h 51m
21 Oct 2019 @ 1600 ie34m
21 Oct 2019 @ 152611m
21 Oct 2019 @ 1515 ie26m
21 Oct 2019 @ 144915m
21 Oct 2019 @ 1434 ie36m
21 Oct 2019 @ 1358 ie141d 3h 42m
02 Jun 2019 @ 1016 ie1d 22h 2m
31 May 2019 @ 1214 ie6m
31 May 2019 @ 1208 ie2d 3h 12m
29 May 2019 @ 0856 ie1d 27m
28 May 2019 @ 0829 ie9d 21h 50m
18 May 2019 @ 10397m
18 May 2019 @ 10326m
18 May 2019 @ 102637m
18 May 2019 @ 094917m
18 May 2019 @ 0932 ie1h 9m
18 May 2019 @ 0823 ie3d 23h 25m
14 May 2019 @ 0858 ie24d 22h 46m
19 Apr 2019 @ 1012 ie213d 3h 36m
18 Sep 2018 @ 06361d 18h 21m
16 Sep 2018 @ 1215 ie13d 3h 4m
03 Sep 2018 @ 0911 ie8d 13h 39m
25 Aug 2018 @ 19324d 11h 4m
21 Aug 2018 @ 082841m
21 Aug 2018 @ 0747 ie10d 22h 14m
10 Aug 2018 @ 0933 ie2d 17h 11m
07 Aug 2018 @ 1622~3m 7m
07 Aug 2018 @ 1615~1-2m7m
07 Aug 2018 @ 1608~2-3m7m
07 Aug 2018 @ 1601~2-3m4m
07 Aug 2018 @ 1557~2m 7m
07 Aug 2018 @ 15508m
07 Aug 2018 @ 1542~3m 7m
07 Aug 2018 @ 15359m
07 Aug 2018 @ 1526~4m 7m
07 Aug 2018 @ 15197m
07 Aug 2018 @ 15127m
07 Aug 2018 @ 1505~2m 28d 1h 1m
10 Jul 2018 @ 1404 ie2d 6h 38m
08 Jul 2018 @ 07261d 21h 40m
06 Jul 2018 @ 0946 ie17d 2h 51m

Interval Statistics

Interval Count100
Min4m
Max325d 20h 14m
Mean19d 10h 36m
Median1d 5h 11m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
20690 14 Jan 2022 @ 1041 --- Graham Full and pulsing with some weak splashes.
14766 29 Jun 2020 @ 0943 --- steve Tried to erupt but didn’t quite make it.
11657 08 Jun 2019 @ 1536 --- Graham First time I have seen it not ie.
8063 03 May 2018 @ 1144 --- Micah Kipple Pulsing and roiling.
5480 28 Aug 2017 @ 0944 --- udo Doming about an inch and overflowing
3529 22 Aug 2016 @ 1401 --- udo Off after Beehive erupted.
EntrySourceLinkComment
27 Jul 2017 @ 1709 JSJ https://www.youtube.com/watch?v=X4dGm95Hk40#t=2m12s Video (time stamp 2:12 to the end) showing Ballcap Geyser's 5:09 to 5:11 PM eruption on 27 July 2017.
27 Jul 2017 @ 1654 JSJ https://www.youtube.com/watch?v=X4dGm95Hk40#t=0m29s Video (time stamp 0:29 to 2:11) showing Ballcap Geyser's 4:54 to 4:59 PM eruption on 27 July 2017.
09 Jul 2014 @ 1756 kcmule http://www.coloradobills.com/yellowstone/PLTBC1755.07092014.flv
Baseline does not exist.