Last Known Eruption
3h 22m ago

Latest Eruptions

Eruption DurationInterval
12 Apr 2024 @ 1740 ie wc1d 5h 54m
11 Apr 2024 @ 1146 ns wc16h 7m
10 Apr 2024 @ 1939 ie wc2d 7h 36m
08 Apr 2024 @ 1203 ns wc5h 29m
08 Apr 2024 @ 0634 ie wc11h 56m
07 Apr 2024 @ 1838 wc12h 25m
07 Apr 2024 @ 0613 wc15h 14m
06 Apr 2024 @ 1459 ie wc5h 39m
06 Apr 2024 @ 0920 wc23h 9m
05 Apr 2024 @ 1011 ie wc2h 30m
05 Apr 2024 @ 0741 ie wc18h 25m
04 Apr 2024 @ 1316 ie wc16h 46m
03 Apr 2024 @ 2030 wc7h 49m
03 Apr 2024 @ 1241 ie wc1d 26m
02 Apr 2024 @ 1215 ie wc2d 2h 2m
31 Mar 2024 @ 1013 wc18h 25m
30 Mar 2024 @ 1548 ie wc2h 20m
30 Mar 2024 @ 1328 ie wc2h 28m
30 Mar 2024 @ 1100 wc2h 37m
30 Mar 2024 @ 0823 wc2h 10m
30 Mar 2024 @ 0613 wc19h 36m
29 Mar 2024 @ 1037 ns wc2h 38m
29 Mar 2024 @ 0759 wc2d 18h 1m
26 Mar 2024 @ 1358 wc15h 49m
25 Mar 2024 @ 2209 wc6h 41m
25 Mar 2024 @ 1528 ie wc3h 12m
25 Mar 2024 @ 1216 ns wc14h 22m
24 Mar 2024 @ 2154 wc9h 27m
24 Mar 2024 @ 1227 wc2h 37m
24 Mar 2024 @ 0950 wc6h 56m
24 Mar 2024 @ 0254 wc2h 6m
24 Mar 2024 @ 0048 wc2h 13m
23 Mar 2024 @ 2235 wc2h 3m
23 Mar 2024 @ 2032 wc12h 5m
23 Mar 2024 @ 0827 ie wc16h 14m
22 Mar 2024 @ 1613 ns wc8h 52m
22 Mar 2024 @ 0721 ns wc14h 12m
21 Mar 2024 @ 1709 wc22h 34m
20 Mar 2024 @ 1835 wc1d 9m
19 Mar 2024 @ 1826 wc7h 11m
19 Mar 2024 @ 1115 wc19h 33m
18 Mar 2024 @ 1542 ie wc2h 32m
18 Mar 2024 @ 1310 ie wc1d 1h 19m
17 Mar 2024 @ 1151 wc3h 17m
17 Mar 2024 @ 0834 ie wc21h 33m
16 Mar 2024 @ 1101 ns wc15h 57m
15 Mar 2024 @ 1904 ie wc10h 32m
15 Mar 2024 @ 0832 ie wc15h 26m
14 Mar 2024 @ 1706 wc1d 5h 0m
13 Mar 2024 @ 1206 wc3m 13s 16h 37m
12 Mar 2024 @ 1929 wc7h 36m
12 Mar 2024 @ 1153 ie2h 38m
12 Mar 2024 @ 0915 wc1d 16h 50m
10 Mar 2024 @ 1625 ie wc1d 3h 23m
09 Mar 2024 @ 1202 wc3m 6s 2h 34m
09 Mar 2024 @ 0928 wc2m 58s 15h 18m
08 Mar 2024 @ 1810 wc1d 6h 17m
07 Mar 2024 @ 1153 wc2h 10m
07 Mar 2024 @ 0943 wc2m 35s 1d 23h 44m
05 Mar 2024 @ 0959 wc2h 24m
05 Mar 2024 @ 0735 ie wc19h 44m
04 Mar 2024 @ 1151 wc2h 17m
04 Mar 2024 @ 0934 ie wc3d 58m
01 Mar 2024 @ 0836 ie1d 56m
29 Feb 2024 @ 0740 wc13h 8m
28 Feb 2024 @ 1832 ie wc2h 52m
28 Feb 2024 @ 1540 ns2d 6h 57m
26 Feb 2024 @ 0843 wc2h 10m
26 Feb 2024 @ 0633 wc2h 8m
26 Feb 2024 @ 0425 wc2h 3m
26 Feb 2024 @ 0222 wc2h 1m
26 Feb 2024 @ 0021 wc2h 10m
25 Feb 2024 @ 2211 ? wc1h 56m
25 Feb 2024 @ 2015 wc4h 2m
25 Feb 2024 @ 1613 wc4h 26m
25 Feb 2024 @ 1147 ie2h 38m
25 Feb 2024 @ 0909 ns2h 32m
25 Feb 2024 @ 0637 wc2h 21m
25 Feb 2024 @ 0416 wc2h 25m
25 Feb 2024 @ 0151 wc2h 23m
24 Feb 2024 @ 2328 wc2h 15m
24 Feb 2024 @ 2113 wc2h 15m
24 Feb 2024 @ 1858 wc4h 22m
24 Feb 2024 @ 1436 ns2h 11m
24 Feb 2024 @ 1225 wc3m 13s 5h 5m
24 Feb 2024 @ 0720 ie wc2h 25m
24 Feb 2024 @ 0455 wc2h 19m
24 Feb 2024 @ 0236 wc2h 17m
24 Feb 2024 @ 0019 wc2h 24m
23 Feb 2024 @ 2155 wc2h 34m
23 Feb 2024 @ 1921 wc5h 2m
23 Feb 2024 @ 1419 wc3m 19s 2h 35m
23 Feb 2024 @ 1144 ns6h 21m
23 Feb 2024 @ 0523 wc3h 4m
23 Feb 2024 @ 0219 wc2h 56m
22 Feb 2024 @ 2323 wc3h 16m
22 Feb 2024 @ 2007 wc3h 9m
22 Feb 2024 @ 1658 ie6h 34m
22 Feb 2024 @ 1024 ns3h 29m
22 Feb 2024 @ 0655 ns wc3h 20m

Interval Statistics

Interval Count100
Min1h 56m
Max3d 58m
Mean12h 7m
Median5h 17m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
34073 27 Feb 2024 @ 0636 --- JarnoO Not seen on the overnights at all, even in clear weather. Guess it really doesn't like snow.
33947 29 Jan 2024 @ 0900 --- JarnoO Has recovered from the long (>4h) intervals during the daytime hours of January 27. Seems even 3h00m±15m would suffice now.
33929 26 Jan 2024 @ 1130 --- JarnoO Plate's intervals have abruptly lengthened overnight compared to the currently typical 3h00m±30m, starting with 0026 wc (I=4h06m), previous interval ±3h29m (it could be argued that that one was the start of the lengthening - the one before was ±3h at most given the unclosed interval). The next one, 0435 wc, had an interval of 4h09m and the most recent one of 5h36m. Could be it's nearing the end of an active phase, not to be seen for days to weeks. Given past intervals, it appears certain it's done that repeatedly since reactivation early 2022, so it's not out of the ordinary.
33870 18 Jan 2024 @ 1320 --- K.Cooper bubbles
33855 17 Jan 2024 @ 1550 --- K.Cooper bubbles no overflow
33814 16 Jan 2024 @ 0750 --- K.Cooper erupted recently
33760 07 Jan 2024 @ 1706 --- Graham Erupted between now and 1520. Pool down now.
29209 29 Oct 2023 @ 1235 --- SantaFe108 Overflowing but not bubbling.
28809 15 Oct 2023 @ 1112 --- SantaFe108 Overflowing with really small bubbling.
28668 07 Oct 2023 @ 1212 --- Dan A Bubbling now
28665 07 Oct 2023 @ 1112 --- SantaFe108 Overflowing but not bubbling yet.
28647 05 Oct 2023 @ 1904 05 Oct 2023 @ 2000 Ben VL Bubbling as I passed by. No eruption by the time I left the hill around 2000. Guessing it's in the 'bubbling for hours' mode.
28263 15 Sep 2023 @ 1514 --- Dan A Bubbling
28260 15 Sep 2023 @ 0702 --- K.Cooper just below overflow
28216 11 Sep 2023 @ 1516 --- K.Cooper starting overflow no bubbles
28206 11 Sep 2023 @ 0828 --- K.Cooper in overflow and bubbling
28194 10 Sep 2023 @ 1607 --- K.Cooper strong overflow and lots of bubbles
28163 10 Sep 2023 @ 0618 --- K.Cooper well below overflow
28139 09 Sep 2023 @ 0926 --- K.Cooper Just starting overflow over
28112 08 Sep 2023 @ 1147 --- Ben VL Bubbling
27945 02 Sep 2023 @ 1532 --- SantaFe108 Overflowing out the back, not bubbling at this time.
27909 01 Sep 2023 @ 1534 --- Graham in overflow and bubbling
27681 19 Aug 2023 @ 0930 --- RMichaels Overflowing and bubbling.
27669 18 Aug 2023 @ 1600 18 Aug 2023 @ 1800 RMichaels Overflowing and bubbling throughout this period and probably longer.
27559 13 Aug 2023 @ 1430 --- aferrara Bubbling, slightly turbid water
27353 31 Jul 2023 @ 1311 --- Dan A Has been bubbling for over 3 hours with no eruption, bubbling had nearly stopped at one point, have never observed this before
27333 30 Jul 2023 @ 1300 --- Dan A Overflowing and bubbling
27275 28 Jul 2023 @ 1657 --- Dan A In strong overflow and bubbling
27274 28 Jul 2023 @ 1454 --- Dan A Overflowing but not bubbling
27267 27 Jul 2023 @ 1729 --- RMichaels Overflowing but not bubbling.
27253 27 Jul 2023 @ 0722 --- SantaFe108 Overflowing and bubbling.
26956 09 Jul 2023 @ 0835 --- RMichaels Overflowing and bubbling.
26918 08 Jul 2023 @ 2022 --- RMichaels Overflowing and bubbling.
26907 08 Jul 2023 @ 1640 --- RMichaels Overflowing and bubbling.
26883 07 Jul 2023 @ 1726 --- Dan A Overflowing and bubbling
26865 06 Jul 2023 @ 1519 --- Dan A Overflowing and bubbling
26855 05 Jul 2023 @ 1024 --- Dan A In overflow and bubbling
26790 02 Jul 2023 @ 1049 --- Graham Water visible well down in the crater. Likely erupted this morning.
26767 01 Jul 2023 @ 1235 --- Ben VL In overflow
26611 23 Jun 2023 @ 0807 --- Forestbewithyou Plate is post eruptive
26465 19 Jun 2023 @ 1136 --- Graham Below overflow.
26155 08 Jun 2023 @ 1222 --- Graham In light overflow.
25829 28 May 2023 @ 0619 --- Graham Below overflow.
25826 27 May 2023 @ 1951 --- User34 Just below overflow. Bubbling
25750 24 May 2023 @ 1638 --- SantaFe108 Bubbling in-progress.
25673 21 May 2023 @ 1801 --- SantaFe108 Beginning of bubbling.
25644 21 May 2023 @ 1356 --- Dan A In overflow and bubbling
25608 20 May 2023 @ 1923 --- SantaFe108 Pool is recovering from eruption and is now ~5 inches below overflow.
25600 20 May 2023 @ 1759 --- SantaFe108 Began bubbling at this time.
25598 20 May 2023 @ 1738 --- SantaFe108 Lightly overflowing.
25409 12 May 2023 @ 1512 --- Janet Jones No microbes seen in the vent. Overflowing lightly.
25269 23 Apr 2023 @ 1600 --- SantaFe108 Full and hot.
23912 19 Sep 2022 @ 1024 --- Tara hot, down a few inches
23182 14 Aug 2022 @ 1527 --- Tara full, hot, and convecting, probably 2-3" higher than it was on 8/11/22
21192 06 May 2022 @ 2048 --- Tara hot and overflowing
17503 06 Jun 2021 @ 1035 --- Tara pool quiet, light ring of pale orange bacteria around edges
16496 31 Oct 2020 @ 1111 --- Janet Jones Low water level - full of brownish orange microbes.
10986 19 Apr 2019 @ 0927 --- udo Very dark bacteria growth = cooled considerably from last fall. sad.
10300 16 Sep 2018 @ 1340 --- Siegmund Full to the brim, brown bacteria in crater.
8550 01 Jun 2018 @ 2028 01 Jun 2018 @ 2200 Siegmund Quietly overflowing.
8129 09 May 2018 @ 0916 --- udo Plate has heated up and is now clear. Orange bacteria seen weeks ago is gone.
4826 07 Aug 2017 @ 1741 --- JSJ Plate Geyser's basin was water-filled and overflowing.
4428 09 Jul 2017 @ 1239 --- udo 1st doming bubbles seen
4098 16 May 2017 @ 1354 --- Betty Plate or Slot ie, but I never know which one it is
2959 03 Jun 2016 @ 1240 --- JSJ Plate Geyser's basin is water-filled.
2814 04 May 2016 @ 1330 --- udo Overflowing with small ripples.
2797 29 Apr 2016 @ 1323 --- Siegmund Overflowing. Algae only at edges of crater and in runoff channel (in contrast to opening weekend when the crater itself was orange)
2748 17 Apr 2016 @ 1534 --- mhreed Full with orange bacteria in crater.
110 17 Feb 2012 @ 0000 17 Feb 2012 @ 2359 ofcarolyn quite a bit of steam today, couldn\'t be sure of water
15303 13 Oct 1996 @ 1427 --- JarnoO overflowing
14395 28 Sep 1995 @ 1520 --- JarnoO overflow
14281 05 Feb 1995 @ 1630 --- JarnoO not before 1630
12737 08 Sep 1994 @ 2000 08 Sep 1994 @ 2009 JarnoO 20:0x
12643 02 May 1994 @ 1304 02 May 1994 @ 1354 JarnoO 13:x4
12355 22 Dec 1993 @ 1600 22 Dec 1993 @ 1609 JarnoO 16:0x ie
12320 21 Sep 1993 @ 1130 21 Sep 1993 @ 1139 JarnoO 11:3x
5675 28 Aug 1992 @ 1800 28 Aug 1992 @ 1859 JarnoO 18:xx
5429 09 Jul 1992 @ 2100 09 Jul 1992 @ 2159 JarnoO 21:xx
Baseline does not exist.