Last Known Eruption
8d 17h 31m ago

Latest Eruptions

Eruption DurationInterval
29 Nov 2023 @ 1441 ie wc42m
29 Nov 2023 @ 1359 ie wc1h 27m
29 Nov 2023 @ 1232 wc9d 23h 33m
19 Nov 2023 @ 1259 ie wc19h 58m
18 Nov 2023 @ 1701 wc39m
18 Nov 2023 @ 1622 wc36m
18 Nov 2023 @ 1546 ie wc13d 2h 7m
05 Nov 2023 @ 1339 wc13d 3h 46m
23 Oct 2023 @ 1053 ie wc1h 14m
23 Oct 2023 @ 0939 wc1h 15m
23 Oct 2023 @ 0824 ie wc15h 0m
22 Oct 2023 @ 1724 wc22h 26m
21 Oct 2023 @ 1858 wc43m
21 Oct 2023 @ 1815 wc2h 4m
21 Oct 2023 @ 161136m
21 Oct 2023 @ 1535 ie wc1d 1h 54m
20 Oct 2023 @ 1341 ie wc2h 22m
20 Oct 2023 @ 1119 ns wc38m
20 Oct 2023 @ 1041 ns wc22h 7m
19 Oct 2023 @ 1234 wc22h 22m
18 Oct 2023 @ 1412 ie wc1d 23h 15m
16 Oct 2023 @ 1457 wc2d 21h 38m
13 Oct 2023 @ 171937m
13 Oct 2023 @ 164239m
13 Oct 2023 @ 160340m
13 Oct 2023 @ 15232d 2h 26m
11 Oct 2023 @ 1257 ie wc20h 4m
10 Oct 2023 @ 1653 wc4m 9s 1h 41m
10 Oct 2023 @ 1512 wc5m 9s 2h 21m
10 Oct 2023 @ 1251 ie wc2h 52m
10 Oct 2023 @ 0959 ns wc47m
10 Oct 2023 @ 0912 wc14h 35m
09 Oct 2023 @ 1837 ns wc1d 4h 29m
08 Oct 2023 @ 1408 ie wc1h 10m
08 Oct 2023 @ 1258 wc33m
08 Oct 2023 @ 122517h 27m
07 Oct 2023 @ 185836m
07 Oct 2023 @ 18222h 51m
07 Oct 2023 @ 1531 ie wc1h 6m
07 Oct 2023 @ 1425 wc4m 26s 1h 1m
07 Oct 2023 @ 1324 ie32m
07 Oct 2023 @ 1252 ie1h 10m
07 Oct 2023 @ 114218h 47m
06 Oct 2023 @ 1655 ie wc3h 52m
06 Oct 2023 @ 1303 ie wc35m
06 Oct 2023 @ 1228 ie wc4d 19h 56m
01 Oct 2023 @ 1632 wc21h 14m
30 Sep 2023 @ 1918 ie4h 31m
30 Sep 2023 @ 1447 ie38m
30 Sep 2023 @ 140940m
30 Sep 2023 @ 132938m
30 Sep 2023 @ 1251 ie1h 54m
30 Sep 2023 @ 105738m
30 Sep 2023 @ 1019 ie1h 48m
30 Sep 2023 @ 0831 ns wc39m
30 Sep 2023 @ 0752 ie13h 39m
29 Sep 2023 @ 1813 ie2h 38m
29 Sep 2023 @ 1535 ie1h 28m
29 Sep 2023 @ 1407 ie1h 2m
29 Sep 2023 @ 1305 ie42m
29 Sep 2023 @ 1223 ie wc22h 14m
28 Sep 2023 @ 1409 ie wc2h 33m
28 Sep 2023 @ 1136 ie wc22h 34m
27 Sep 2023 @ 1302 ie wc1h 21m
27 Sep 2023 @ 1141 ie wc1h 15m
27 Sep 2023 @ 102641m
27 Sep 2023 @ 094517h 35m
26 Sep 2023 @ 1610 ie38m
26 Sep 2023 @ 1532 wc3h 33m
26 Sep 2023 @ 1159 ie wc38m
26 Sep 2023 @ 11211h 0m
26 Sep 2023 @ 1021 ie wc17h 49m
25 Sep 2023 @ 1632 ie37m
25 Sep 2023 @ 1555 wc34m
25 Sep 2023 @ 1521 ie1d 23h 41m
23 Sep 2023 @ 1540 ie1h 31m
23 Sep 2023 @ 1409 ie wc23h 7m
22 Sep 2023 @ 1502 ie2h 0m
22 Sep 2023 @ 1302 ie wc1h 28m
22 Sep 2023 @ 113436m
22 Sep 2023 @ 105835m
22 Sep 2023 @ 102338m
22 Sep 2023 @ 094539m
22 Sep 2023 @ 0906 ie1h 2m
22 Sep 2023 @ 08041h 11m
22 Sep 2023 @ 0653 ie11h 13m
21 Sep 2023 @ 19408h 16m
21 Sep 2023 @ 112435m
21 Sep 2023 @ 1049 ie38m
21 Sep 2023 @ 101140m
21 Sep 2023 @ 093118h 37m
20 Sep 2023 @ 1454 ie wc38m
20 Sep 2023 @ 14162h 28m
20 Sep 2023 @ 1148 ns1h 11m
20 Sep 2023 @ 10371h 3m
20 Sep 2023 @ 093444m
20 Sep 2023 @ 085018h 29m
19 Sep 2023 @ 1421 ie wc1h 53m
19 Sep 2023 @ 1228 wc1h 31m
19 Sep 2023 @ 105716h 10m

Interval Statistics

Interval Count100
Min32m
Max13d 3h 46m
Mean17h 14m
Median1h 28m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
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.