Last Known Eruption
3h 33m ago

Latest Eruptions

Eruption DurationInterval
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
22 Feb 2024 @ 0335 wc3h 14m
22 Feb 2024 @ 0021 wc3h 25m
21 Feb 2024 @ 2056 wc7h 56m
21 Feb 2024 @ 1300 ns2h 9m
21 Feb 2024 @ 1051 ie wc2h 20m
21 Feb 2024 @ 0831 wc2m 57s 4h 37m
21 Feb 2024 @ 0354 ? wc2h 12m
21 Feb 2024 @ 0142 wc2h 14m
20 Feb 2024 @ 2328 wc2h 28m
20 Feb 2024 @ 2100 wc2h 33m
20 Feb 2024 @ 1827 ie wc4h 42m
20 Feb 2024 @ 1345 ie wc11h 0m
20 Feb 2024 @ 0245 wc2h 33m
20 Feb 2024 @ 0012 wc2h 11m
19 Feb 2024 @ 2201 wc19m
19 Feb 2024 @ 2142 wc9h 23m
19 Feb 2024 @ 121919h 10m
18 Feb 2024 @ 1709 ie4h 17m
18 Feb 2024 @ 1252 ie3h 59m
18 Feb 2024 @ 0853 wc3m 29s 9h 51m
17 Feb 2024 @ 2302 wc4h 29m
17 Feb 2024 @ 1833 wc6h 9m
17 Feb 2024 @ 1224 ns wc20h 48m
16 Feb 2024 @ 1536 ie3h 0m
16 Feb 2024 @ 12363h 12m
16 Feb 2024 @ 0924 wc20h 4m
15 Feb 2024 @ 1320 ie2h 31m
15 Feb 2024 @ 1049 ie2h 17m
15 Feb 2024 @ 0832 wc17h 33m
14 Feb 2024 @ 1459 wc5h 51m
14 Feb 2024 @ 0908 ie wc16h 16m
13 Feb 2024 @ 1652 wc>3m 19s 2h 0m
13 Feb 2024 @ 1452 wc3m 26s 2h 2m
13 Feb 2024 @ 1250 wc3m 25s 2d 14m
11 Feb 2024 @ 1236 wc18h 54m
10 Feb 2024 @ 1742 ie5h 9m
10 Feb 2024 @ 1233 ie3h 7m
10 Feb 2024 @ 0926 ns16h 53m
09 Feb 2024 @ 1633 wc3m 34s 2h 21m
09 Feb 2024 @ 1412 ie2h 33m
09 Feb 2024 @ 1139 ie2h 40m
09 Feb 2024 @ 0859 wc16h 14m
08 Feb 2024 @ 16451d 2h 49m
07 Feb 2024 @ 1356 ie wc2h 0m
07 Feb 2024 @ 1156 ie wc2h 2m
07 Feb 2024 @ 0954 wc>3m 37s 1h 50m
07 Feb 2024 @ 0804 ie wc22h 18m
06 Feb 2024 @ 0946 ie wc16h 21m
05 Feb 2024 @ 1725 ns4h 7m
05 Feb 2024 @ 1318 ie wc22h 13m
04 Feb 2024 @ 1505 wc23h 42m
03 Feb 2024 @ 1523 ie23h 44m
02 Feb 2024 @ 1539 ie2h 38m
02 Feb 2024 @ 1301 wc2h 9m
02 Feb 2024 @ 1052 ie17h 0m
01 Feb 2024 @ 1752 wc2h 25m
01 Feb 2024 @ 1527 wc2h 12m
01 Feb 2024 @ 1315 ie2h 5m
01 Feb 2024 @ 1110 ie wc2h 8m
01 Feb 2024 @ 0902 ie17h 53m
31 Jan 2024 @ 1509 wc2h 12m
31 Jan 2024 @ 1257 ie4h 34m
31 Jan 2024 @ 0823 ie wc14h 40m
30 Jan 2024 @ 1743 wc3m 25s 2h 11m
30 Jan 2024 @ 1532 wc2h 9m
30 Jan 2024 @ 1323 ie1h 43m
30 Jan 2024 @ 1140 wc2h 24m
30 Jan 2024 @ 0916 ie3h 7m
30 Jan 2024 @ 0609 wc5h 18m
30 Jan 2024 @ 0051 wc2h 35m
29 Jan 2024 @ 2216 wc7h 41m
29 Jan 2024 @ 1435 wc4h 51m
29 Jan 2024 @ 0944 wc3m 24s 2h 54m
29 Jan 2024 @ 0650 wc2h 46m
29 Jan 2024 @ 0404 wc2h 51m
29 Jan 2024 @ 0113 wc2h 55m
28 Jan 2024 @ 2218 wc3h 0m
28 Jan 2024 @ 1918 wc2h 56m
28 Jan 2024 @ 1622 ie wc2h 43m
28 Jan 2024 @ 1339 wc2h 45m
28 Jan 2024 @ 1054 wc6h 18m
28 Jan 2024 @ 0436 wc3h 8m
28 Jan 2024 @ 0128 wc3h 38m

Interval Statistics

Interval Count100
Min19m
Max2d 14m
Mean6h 38m
Median3h 7m

Latest Notes

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