Last Known Eruption
16d 17h 59m ago

Latest Eruptions

Eruption DurationInterval
16 Nov 2024 @ 0334 wc36m
16 Nov 2024 @ 0258 wc38m
16 Nov 2024 @ 0220 wc38m
16 Nov 2024 @ 0142 wc39m
16 Nov 2024 @ 0103 wc35m
16 Nov 2024 @ 0028 wc36m
15 Nov 2024 @ 2352 wc36m
15 Nov 2024 @ 2316 wc37m
15 Nov 2024 @ 2239 wc1h 30m
15 Nov 2024 @ 2109 wc6h 59m
15 Nov 2024 @ 1410 ie wc35m
15 Nov 2024 @ 1335 wc1h 55m
15 Nov 2024 @ 1140 ie wc24d 20h 20m
21 Oct 2024 @ 16201d 2h 38m
20 Oct 2024 @ 1342 wc1h 2m
20 Oct 2024 @ 124019h 17m
19 Oct 2024 @ 1723 ie30m
19 Oct 2024 @ 1653 ns1h 1m
19 Oct 2024 @ 1552 ie52m
19 Oct 2024 @ 1500 ie wc5d 21h 3m
13 Oct 2024 @ 1757 ie2h 27m
13 Oct 2024 @ 153030m
13 Oct 2024 @ 15001d 8m
12 Oct 2024 @ 1452 ie wc4d 1h 19m
08 Oct 2024 @ 1333 ie2d 23h 43m
05 Oct 2024 @ 1350 ie wc5d 23h 51m
29 Sep 2024 @ 1359 wc23h 35m
28 Sep 2024 @ 1424 ie1d 1h 49m
27 Sep 2024 @ 1235 ie wc20h 12m
26 Sep 2024 @ 1623 ie2h 2m
26 Sep 2024 @ 1421 ie20h 9m
25 Sep 2024 @ 18123m 6h 55m
25 Sep 2024 @ 1117 ie1h 5m
25 Sep 2024 @ 1012 wc20h 52m
24 Sep 2024 @ 132030m
24 Sep 2024 @ 125030m
24 Sep 2024 @ 122018h 50m
23 Sep 2024 @ 1730 ie38m
23 Sep 2024 @ 16523h 3m
23 Sep 2024 @ 1349 ns1h 7m
23 Sep 2024 @ 1242 ie18h 16m
22 Sep 2024 @ 1826 ns33m
22 Sep 2024 @ 1753 ie36m
22 Sep 2024 @ 1717 ie5h 33m
22 Sep 2024 @ 1144 ie wc17h 22m
21 Sep 2024 @ 1822 ie32m
21 Sep 2024 @ 1750 ie2h 8m
21 Sep 2024 @ 1542 ns wc1h 32m
21 Sep 2024 @ 1410 ie wc1h 3m
21 Sep 2024 @ 1307 ie wc21h 2m
20 Sep 2024 @ 1605 ie wc1d 1h 30m
19 Sep 2024 @ 1435 wc1d 19h 53m
17 Sep 2024 @ 1842 ie wc8h 46m
17 Sep 2024 @ 0956 wc2h 1m
17 Sep 2024 @ 0755 ie13h 37m
16 Sep 2024 @ 1818 ie wc1h 8m
16 Sep 2024 @ 1710 ie wc3h 28m
16 Sep 2024 @ 1342 ie1h 39m
16 Sep 2024 @ 1203 ns34m
16 Sep 2024 @ 1129 ns1h 41m
16 Sep 2024 @ 0948 wc14h 54m
15 Sep 2024 @ 1854 ie wc4h 33m
15 Sep 2024 @ 14212h 18m
15 Sep 2024 @ 1203 wc1h 40m
15 Sep 2024 @ 1023 wc20h 4m
14 Sep 2024 @ 1419 ns wc3d 3h 44m
11 Sep 2024 @ 103519h 31m
10 Sep 2024 @ 1504 ie2h 16m
10 Sep 2024 @ 1248 wc17h 13m
09 Sep 2024 @ 1935 ie wc4h 12m
09 Sep 2024 @ 1523 wc30m
09 Sep 2024 @ 1453 wc32m
09 Sep 2024 @ 1421 wc3h 56m
09 Sep 2024 @ 102523h 59m
08 Sep 2024 @ 1026 ie1d 3h 10m
07 Sep 2024 @ 0716 ie wc11h 18m
06 Sep 2024 @ 1958 ie wc>1m 8s 2h 40m
06 Sep 2024 @ 17181d 1h 50m
05 Sep 2024 @ 1528 ie1h 20m
05 Sep 2024 @ 1408 ns2m 29m
05 Sep 2024 @ 133958m
05 Sep 2024 @ 124127m
05 Sep 2024 @ 121419h 0m
04 Sep 2024 @ 1714 ie2h 32m
04 Sep 2024 @ 1442 wc28m
04 Sep 2024 @ 1414 ns wc56m
04 Sep 2024 @ 131828m
04 Sep 2024 @ 125027m
04 Sep 2024 @ 122328m
04 Sep 2024 @ 115521h 13m
03 Sep 2024 @ 1442 ie33m
03 Sep 2024 @ 14092h 3m
03 Sep 2024 @ 120633m
03 Sep 2024 @ 11331h 32m
03 Sep 2024 @ 1001 ie14h 18m
02 Sep 2024 @ 1943 ie1h 39m
02 Sep 2024 @ 1804 ie wc30m
02 Sep 2024 @ 1734 ie5h 51m
02 Sep 2024 @ 1143 ie wc33m
02 Sep 2024 @ 1110 ie wc15h 11m

Interval Statistics

Interval Count100
Min27m
Max24d 20h 20m
Mean18h 5m
Median2h 2m

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.