Last Known Eruption
13h 58m ago

Latest Eruptions

Eruption DurationInterval
01 Jul 2025 @ 0815 wc12h 30m
30 Jun 2025 @ 1945 wc1d 8h 29m
29 Jun 2025 @ 1116 ie43m
29 Jun 2025 @ 10334m 41m
29 Jun 2025 @ 09524m 39m
29 Jun 2025 @ 09134m 42m
29 Jun 2025 @ 08314m 40m
29 Jun 2025 @ 07514m 10h 15m
28 Jun 2025 @ 2136 ie38m
28 Jun 2025 @ 2058 ie2h 44m
28 Jun 2025 @ 18144m 1h 25m
28 Jun 2025 @ 16494m 40m
28 Jun 2025 @ 16094m 39m
28 Jun 2025 @ 15304m 43m
28 Jun 2025 @ 14474m 1d 2h 28m
27 Jun 2025 @ 1219 ns wc2h 47m
27 Jun 2025 @ 0932 wc18h 6m
26 Jun 2025 @ 1526 wc1d 3h 30m
25 Jun 2025 @ 1156 ns4m 3d 15h 35m
21 Jun 2025 @ 2021 ie wc3h 35m
21 Jun 2025 @ 1646 ie wc8h 7m
21 Jun 2025 @ 0839 ie wc2h 46m
21 Jun 2025 @ 0553 ie wc18h 5m
20 Jun 2025 @ 1148 ns wc16h 4m
19 Jun 2025 @ 1944 wc39m
19 Jun 2025 @ 1905 wc1h 8m
19 Jun 2025 @ 1757 wc1d 1h 9m
18 Jun 2025 @ 1648:0041m 0s
18 Jun 2025 @ 1607:004m 0s 36m 29s
18 Jun 2025 @ 1530:314m 0s 7h 22m
18 Jun 2025 @ 0808 ie22h 39m
17 Jun 2025 @ 0929 ie wc17h 51m
16 Jun 2025 @ 1538 wc5h 21m
16 Jun 2025 @ 10172m 37m
16 Jun 2025 @ 0940 wc1h 18m
16 Jun 2025 @ 0822 ns wc16h 46m
15 Jun 2025 @ 153619h 37m
14 Jun 2025 @ 1959 ie wc5h 30m
14 Jun 2025 @ 1429 ns7h 19m
14 Jun 2025 @ 0710 ie wc20h 31m
13 Jun 2025 @ 1039 ie wc42m
13 Jun 2025 @ 0957 wc21h 8m
12 Jun 2025 @ 1249 ie wc19h 56m
11 Jun 2025 @ 1653 ie6h 29m
11 Jun 2025 @ 1024 ie wc19h 48m
10 Jun 2025 @ 1436 ie3h 45m
10 Jun 2025 @ 1051 ie1d 2m
09 Jun 2025 @ 1048:584m 0s 17h 35m
08 Jun 2025 @ 17134m 4h 0m
08 Jun 2025 @ 131338m
08 Jun 2025 @ 123537m
08 Jun 2025 @ 115839m
08 Jun 2025 @ 11192h 8m
08 Jun 2025 @ 0911 ie wc44m
08 Jun 2025 @ 0827 wc1d 21h 45m
06 Jun 2025 @ 1042 wc21h 1m
05 Jun 2025 @ 13414h 25m
05 Jun 2025 @ 0916 ie2d 41m
03 Jun 2025 @ 0835 ie wc23h 25m
02 Jun 2025 @ 0910 ie wc15h 13m
01 Jun 2025 @ 17573h 24m
01 Jun 2025 @ 1433 wc1d 6h 20m
31 May 2025 @ 0813 wc11h 57m
30 May 2025 @ 2016 ns1d 18m
29 May 2025 @ 1958 wc1d 9m
28 May 2025 @ 1949 wc1d 2h 17m
27 May 2025 @ 17323h 56m
27 May 2025 @ 1336 ns1h 18m
27 May 2025 @ 1218 ie wc41m
27 May 2025 @ 1137 ie wc1d 4h 49m
26 May 2025 @ 064814h 28m
25 May 2025 @ 1620 ie36m
25 May 2025 @ 154438m
25 May 2025 @ 15063d 4h 9m
22 May 2025 @ 1057 ie14h 14m
21 May 2025 @ 2043 ns40m
21 May 2025 @ 2003 ie5d 3h 50m
16 May 2025 @ 1613 ie2d 1h 54m
14 May 2025 @ 14194m 37m
14 May 2025 @ 1342 ie3h 48m
14 May 2025 @ 0954 ie37m
14 May 2025 @ 09171d 20h 32m
12 May 2025 @ 1245 ie35m
12 May 2025 @ 1210 ie37m
12 May 2025 @ 1133 ie36m
12 May 2025 @ 1057 ie31m
12 May 2025 @ 1026 ie1h 4m
12 May 2025 @ 0922 ie12h 32m
11 May 2025 @ 2050 A wc2d 7h 32m
09 May 2025 @ 1318 ie2h 31m
09 May 2025 @ 10473m 46s 1d 1h 42m
08 May 2025 @ 090536m
08 May 2025 @ 0829 ie18h 52m
07 May 2025 @ 133722h 41m
06 May 2025 @ 1456 ie wc1d 6h 30m
05 May 2025 @ 0826 ie1h 47m
05 May 2025 @ 063914h 9m
04 May 2025 @ 16303m 30s 30m
04 May 2025 @ 160030m
04 May 2025 @ 15303h 24m

Interval Statistics

Interval Count100
Min30m
Max5d 3h 50m
Mean13h 52m
Median4h 53m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
39907 17 Jun 2025 @ 0810 --- JarnoO (wc) Slot's activity since late December has gradually carved out a broad crater with steep walls in the larger Sponge mound area. The crater floor is just a tad higher than its vent, again separated by a steep wall. It was non-existent prior to this.
38832 04 May 2025 @ 1528 --- K.Cooper Filled briefly with water before draining. Coming back a minute later Plate very low water
38830 04 May 2025 @ 1516 --- K.Cooper empty
38467 18 Apr 2025 @ 1142 --- SantaFe108 Empty.
38100 25 Dec 2024 @ 1428 25 Dec 2024 @ 1530 aferrara 1428-empty, 1447-first water visible, 1452-pulsing and splashing, 1455-Overflow that generally decreased until 1530, still pulsing and sometimes splashing
38099 25 Dec 2024 @ 1212 --- Pholli slot now completely full. pushing sizable waves every few seconds. unsure if thumping. cannot be heard over sponge and pump
38098 25 Dec 2024 @ 1209 --- Pholli filling and pushing waves
38088 25 Dec 2024 @ 1031 --- K.Cooper empty
38081 24 Dec 2024 @ 1319 --- K.Cooper Milky and having eruptions/bursts to about four feet every minute or two
38057 21 Dec 2024 @ 1038 --- K.Cooper dropping
38056 21 Dec 2024 @ 1026 --- K.Cooper splashed
38053 21 Dec 2024 @ 0934 --- K.Cooper In overflow and pulsing
37989 12 Dec 2024 @ 1218 --- K.Cooper Sloshing
37783 27 Oct 2024 @ 1150 --- Janet Jones Overflowing and pulsing. I watched for a couple of minutes and stopped by again on my way down basin and it was still pulsing in the crater.
37551 13 Oct 2024 @ 1629 --- K.Cooper In overflow. bubbling lightly and the entire pool is bouncing up and down
37512 10 Oct 2024 @ 1450 --- SantaFe108 Blue in vent, transitioning to brown around the edges, blooping with overflow.
37212 28 Sep 2024 @ 1548 --- User34 Overflowing, no bacteria around vent
16870 16 Apr 2021 @ 1622 --- User34 Full, water from uphill flowing through
5483 28 Aug 2017 @ 1227 --- udo Bubbling water visible about a foot below rim..
Baseline does not exist.