Last Known Eruption
17h 39m ago

Latest Eruptions

Eruption DurationInterval
17 May 2024 @ 1428 ie wc1h 17m
17 May 2024 @ 131134m
17 May 2024 @ 123737m
17 May 2024 @ 1200 ie wc21h 45m
16 May 2024 @ 1415 ns2h 14m
16 May 2024 @ 12011h 38m
16 May 2024 @ 102315m
16 May 2024 @ 1008 ie23h 49m
15 May 2024 @ 101931m
15 May 2024 @ 0948 ie wc1h 2m
15 May 2024 @ 0846 ie wc1h 5m
15 May 2024 @ 0741 ie wc14h 21m
14 May 2024 @ 17204m 44s 1h 1m
14 May 2024 @ 16192h 5m
14 May 2024 @ 141429m
14 May 2024 @ 1345 ie wc17h 37m
13 May 2024 @ 20085h 4m
13 May 2024 @ 15041h 38m
13 May 2024 @ 1326 wc1h 2m
13 May 2024 @ 1224 wc4h 7m
13 May 2024 @ 0817 ns wc1h 6m
13 May 2024 @ 0711 wc17h 59m
12 May 2024 @ 1312 ie1h 29m
12 May 2024 @ 1143 wc3h 41m
12 May 2024 @ 0802 ie wc ini1h 41m
12 May 2024 @ 0621 ie wc14h 42m
11 May 2024 @ 1539 wc30m
11 May 2024 @ 1509 ie wc2h 0m
11 May 2024 @ 1309 ie wc1d 8m
10 May 2024 @ 1301 ie wc3d 21h 47m
06 May 2024 @ 1514 ie wc23h 55m
05 May 2024 @ 1519 ie37m
05 May 2024 @ 1442 ie wc5h 24m
05 May 2024 @ 0918 ie wc2h 55m
05 May 2024 @ 0623 ie wc12h 1m
04 May 2024 @ 182234m
04 May 2024 @ 1748 ie2h 16m
04 May 2024 @ 1532 ns wc2h 44m
04 May 2024 @ 1248 ie wc1d 22h 2m
02 May 2024 @ 1446 ie wc2d 21h 47m
29 Apr 2024 @ 16591d 1h 54m
28 Apr 2024 @ 1505 ie wc1h 44m
28 Apr 2024 @ 1321 ie wc21h 1m
27 Apr 2024 @ 1620 ie35m
27 Apr 2024 @ 1545 ie35m
27 Apr 2024 @ 1510 ie37m
27 Apr 2024 @ 143335m
27 Apr 2024 @ 135833m
27 Apr 2024 @ 1325 ie wc35m
27 Apr 2024 @ 1250 ie wc1h 44m
27 Apr 2024 @ 1106 wc34m
27 Apr 2024 @ 1032 ie wc1h 42m
27 Apr 2024 @ 0850 wc1h 42m
27 Apr 2024 @ 0708 ns wc16h 11m
26 Apr 2024 @ 1457 ie wc38m
26 Apr 2024 @ 1419 ie wc32m
26 Apr 2024 @ 1347 ie36m
26 Apr 2024 @ 131136m
26 Apr 2024 @ 123536m
26 Apr 2024 @ 115935m
26 Apr 2024 @ 112435m
26 Apr 2024 @ 1049 ie34m
26 Apr 2024 @ 101534m
26 Apr 2024 @ 094132m
26 Apr 2024 @ 0909 wc34m
26 Apr 2024 @ 0835 ie36m
26 Apr 2024 @ 0759 ie wc36m
26 Apr 2024 @ 0723 ie wc11h 36m
25 Apr 2024 @ 19477h 2m
25 Apr 2024 @ 124533m
25 Apr 2024 @ 12122h 49m
25 Apr 2024 @ 092315h 49m
24 Apr 2024 @ 173433m
24 Apr 2024 @ 17011h 9m
24 Apr 2024 @ 155232m
24 Apr 2024 @ 15201d 4h 2m
23 Apr 2024 @ 111833m
23 Apr 2024 @ 104518h 10m
22 Apr 2024 @ 1635 wc1h 6m
22 Apr 2024 @ 1529 ie wc1d 1h 56m
21 Apr 2024 @ 1333 ns34m
21 Apr 2024 @ 125917h 59m
20 Apr 2024 @ 1900 wc1h 3m
20 Apr 2024 @ 1757 ie wc33m
20 Apr 2024 @ 1724 ie wc3h 40m
20 Apr 2024 @ 1344 ie wc34m
20 Apr 2024 @ 1310 ie wc17h 27m
19 Apr 2024 @ 19433h 48m
19 Apr 2024 @ 1555 ie wc1h 37m
19 Apr 2024 @ 14182h 8m
19 Apr 2024 @ 1210 ns wc18h 59m
18 Apr 2024 @ 1711 ie wc1h 6m
18 Apr 2024 @ 1605 ie wc2d 7h 41m
16 Apr 2024 @ 0824 wc18h 33m
15 Apr 2024 @ 1351 ie wc36m
15 Apr 2024 @ 1315 ie wc6h 48m
15 Apr 2024 @ 0627 ie wc16h 5m
14 Apr 2024 @ 1422 ie wc1h 1m
14 Apr 2024 @ 1321 ie wc4h 50m
14 Apr 2024 @ 0831 wc12h 20m

Interval Statistics

Interval Count100
Min15m
Max3d 21h 47m
Mean8h 6m
Median1h 38m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
33844 17 Jan 2024 @ 1511 --- K.Cooper constant low splashing no eruption
33808 16 Jan 2024 @ 0805 --- K.Cooper light splashing no recent eruption
31932 03 Dec 2023 @ 0731 --- Delta4Heavy85 "Stuck" again doing small splashes
29178 28 Oct 2023 @ 1258 --- JarnoO (wc, all day so far) Appears to be stuck or otherwise inactive.
26492 20 Jun 2023 @ 1027 --- Graham Stuck doing small splashes. no real eruption in over 30m
25543 19 May 2023 @ 0725 --- Graham Big splashes but failed to erupt.
25390 12 May 2023 @ 1428 --- Janet Jones The overflow channel is devoid of microbes. It had microbes in March, but that could have been due to the weather/time of year. In looking back at other photos, it does seem to be hot enough at times to not have microbes and cool enough other times to allow for their growth. This does not appear to be necessarily seasonal.
21653 02 Jun 2022 @ 0840 --- Graham Splashed a lot but failed to erupt.
21421 22 May 2022 @ 0850 22 May 2022 @ 0903 Micah Kipple Has been "stuck" during this time. Can't quite seem to start.
20876 07 Mar 2022 @ 1148 --- JarnoO (wc) Spitting every so often during this and the next minute.
13513 03 Sep 2019 @ 0906 03 Sep 2019 @ 0927 Micah Kipple Appears to be stuck
10601 13 Oct 2018 @ 0713 --- JarnoO Seemed to be splashing at this time. Not sure if I caught the tail end of an eruption or if it was 'stuck'.
10411 24 Sep 2018 @ 1251 --- BobInSLC seems to be having mostly "minor" eruptions of less than 2 feet. need to observe little cub before a lion initial
9902 28 Aug 2018 @ 0955 --- BobInSLC in stuck mode
8549 01 Jun 2018 @ 2030 01 Jun 2018 @ 2200 Siegmund No eruptions during this time. Observed one episode of preplay ~15cm high at 2117 less than 1 minute long.
4461 14 Jul 2017 @ 1958 --- mhreed Stuck. And it's not very windy...?
4408 05 Jul 2017 @ 1800 --- BobInSLC tried to erupt fully for 10 plus minutes
3637 10 Sep 2016 @ 1156 --- BobInSLC tried to erupt
3623 08 Sep 2016 @ 1238 --- BobInSLC stuck ......
3534 23 Aug 2016 @ 2052 --- WillBoekel Appears to be stuck.
3511 19 Aug 2016 @ 1003 --- mhreed It's stuck. :(
3223 06 Jul 2016 @ 0744 --- David several small spouts noted on wc while Lion was erupting.
2519 11 Oct 2015 @ 1107 --- mhreed Stuck - and yes, it is quite windy.
2309 09 Sep 2015 @ 1937 --- BobInSLC stuck. .
2300 08 Sep 2015 @ 1646 --- BobInSLC stuck. .
2284 07 Sep 2015 @ 1031 --- BobInSLC stuck ......
2282 07 Sep 2015 @ 0904 --- BobInSLC stuck
2274 06 Sep 2015 @ 0839 06 Sep 2015 @ 1122 BobInSLC stuck, little cub has not fully erupted since before 8:30
1771 21 Jun 2015 @ 0601 --- RMichaels Little cub is stuck.
1735 14 Jun 2015 @ 0729 --- mhreed Appears stuck.
1729 12 Jun 2015 @ 1904 12 Jun 2015 @ 2129 WillBoekel no eruptions
1664 30 May 2015 @ 0844 --- BobInSLC stuck to at least 9:07 with pauses
1655 28 May 2015 @ 1111 --- WillBoekel stuck
1647 26 May 2015 @ 0925 --- mhreed Little Cub is stuck.
1511 18 Jan 2015 @ 1700 --- mhreed Stuck in preplay. I speculate that this geyser doesn't like wind.
1508 17 Jan 2015 @ 0820 --- mhreed Stuck in preplay.
1472 26 Oct 2014 @ 1358 --- mhreed Showing "stuck" behavior - constantly splashing just out of the cone at 1358.
1184 02 Sep 2014 @ 1059 --- Pat Snyder Stopped squirting at 1059.
1183 02 Sep 2014 @ 0950 02 Sep 2014 @ 1027 Pat Snyder Has been squirting but not erupting from 0950 to 1027. Low squirts barely above the cone and continuous.
1044 18 Apr 2014 @ 0800 18 Apr 2014 @ 2000 udo In over 6 hours I have not seen any eruptions, only occasional individual splashes.
810 17 May 2013 @ 2049 17 May 2013 @ 2105 Siegmund preplay starting 2049 but no eruption as of 2105
97 07 Feb 2012 @ 1226 --- BB This is one of those days where it is hard to tell from the UGB cam what Little Cub is doing. I am pretty sure from my captures that Little Cub was 1226 ns. But KL posted 1216, and I assume he was watching the streaming cam, hard to be wrong about LC there.
1355 07 Sep 2007 @ 0920 07 Sep 2007 @ 0929 BoekelUpload 9:2x
16680 01 Jul 1998 @ 0000 01 Jul 1998 @ 2359 JarnoO unreadable ×2
16607 19 Mar 1998 @ 1430 19 Mar 1998 @ 1439 JarnoO 14:3x
16530 11 Jan 1998 @ 1004 11 Jan 1998 @ 1037 JarnoO many minors 1004 to 1037
15258 01 Jul 1996 @ 2030 01 Jul 1996 @ 2039 JarnoO 20:3x
15250 28 Jun 1996 @ 1300 28 Jun 1996 @ 1359 JarnoO 13:xx ie
15221 24 May 1996 @ 1210 24 May 1996 @ 1219 JarnoO 12:1x d=12
15220 22 May 1996 @ 1520 22 May 1996 @ 1529 JarnoO 15:2x
14284 20 Feb 1995 @ 1700 20 Feb 1995 @ 1759 JarnoO 17:xx xx
12736 08 Sep 1994 @ 1000 08 Sep 1994 @ 1059 JarnoO 10:xx ie
12710 06 Aug 1994 @ 1920 06 Aug 1994 @ 1929 JarnoO 19:2x
12709 06 Aug 1994 @ 0940 06 Aug 1994 @ 0949 JarnoO 09:4x
12698 24 Jul 1994 @ 1300 24 Jul 1994 @ 1359 JarnoO 13:xx
12683 30 Jun 1994 @ 0910 30 Jun 1994 @ 0919 JarnoO 09:1x ie
12656 05 Jun 1994 @ 1500 05 Jun 1994 @ 1559 JarnoO 15:xx ie
12655 05 Jun 1994 @ 1400 05 Jun 1994 @ 1459 JarnoO 14:xx ie
12613 28 Feb 1994 @ 1004 28 Feb 1994 @ 1054 JarnoO 10:x4
12358 24 Dec 1993 @ 1620 24 Dec 1993 @ 1629 JarnoO 16:2x ie
12247 30 Jun 1993 @ 1330 30 Jun 1993 @ 1339 JarnoO 13:3x
12217 06 Jun 1993 @ 1510 06 Jun 1993 @ 1519 JarnoO 15:1x
7032 08 Oct 1992 @ 1830 08 Oct 1992 @ 1839 JarnoO 18:3x
7031 08 Oct 1992 @ 1720 08 Oct 1992 @ 1729 JarnoO 17:2x
5705 31 Aug 1992 @ 1210 31 Aug 1992 @ 1219 JarnoO 12:1x
5428 09 Jul 1992 @ 2100 09 Jul 1992 @ 2109 JarnoO 21:0x
5427 09 Jul 1992 @ 1800 09 Jul 1992 @ 1809 JarnoO 18:0x
5412 04 Jul 1992 @ 1900 04 Jul 1992 @ 1959 JarnoO 19:xx
5213 14 May 1992 @ 1128 14 May 1992 @ 1138 JarnoO either 1128 or 1138
173 08 Jan 1971 @ 0000 08 Jan 1971 @ 2359 BoekelUpload active
171 07 Jan 1971 @ 0000 07 Jan 1971 @ 2359 BoekelUpload active
172 07 Jan 1971 @ 0000 07 Jan 1971 @ 2359 BoekelUpload Disreguard last note it was an error
EntrySourceLinkComment
01 Mar 2023 @ 1003 Delta4Heavy85 https://adobe.ly/3Y6AUQZ Video of eruption
22 Jun 2016 @ 0928 David https://www.flickr.com/photos/ujelang/27757510220/in/dateposted-public/ photo taken at 09:28/22 June
01 Apr 2016 @ 1843 ZubenElGenubi https://youtu.be/i9qDSAdlu1o YouTube
09 Aug 2015 @ 1557 JSJ https://www.youtube.com/watch?v=nZUwdrOJ0oU See clips # 21-22 (= last two clips) of this video compilation (Little Cub erupting in concert with Castle).
09 Aug 2015 @ 1336 JSJ https://www.youtube.com/watch?v=nZUwdrOJ0oU See clips # 18-20 of this video compilation.
09 Aug 2015 @ 1227 JSJ https://www.youtube.com/watch?v=nZUwdrOJ0oU See clips # 14-17 of this video compilation.
09 Aug 2015 @ 1152 JSJ https://www.youtube.com/watch?v=nZUwdrOJ0oU See clips # 10-13 of this video compilation.
09 Aug 2015 @ 1118 JSJ https://www.youtube.com/watch?v=nZUwdrOJ0oU See clip # 9 of this video compilation.
09 Aug 2015 @ 1042 JSJ https://www.youtube.com/watch?v=nZUwdrOJ0oU See clips # 6-8 of this video compilation.
17 May 2015 @ 1601 JSJ https://www.youtube.com/watch?v=nZUwdrOJ0oU See clips # 1-5 of this video compilation.
Baseline does not exist.