Last Known Eruption
4d 16h 42m ago

Latest Eruptions

Eruption DurationInterval
22 Feb 2024 @ 1445 ? A15d 4h 31m
07 Feb 2024 @ 1014 min15s 13m
07 Feb 2024 @ 1001 ns27m
07 Feb 2024 @ 0934 maj3m 10m
07 Feb 2024 @ 0924 min4d 19h 24m
02 Feb 2024 @ 1400 A14d 14h 0m
19 Jan 2024 @ 0000 A1d 0m
18 Jan 2024 @ 0000 A6d 8h 8m
11 Jan 2024 @ 1552 maj3m 29m
11 Jan 2024 @ 152355s 18m
11 Jan 2024 @ 1505 min6m
11 Jan 2024 @ 1459 min17m
11 Jan 2024 @ 144240s 12m
11 Jan 2024 @ 14301m 25s 16m
11 Jan 2024 @ 1414 min11m
11 Jan 2024 @ 1403 min6m
11 Jan 2024 @ 1357 min4m
11 Jan 2024 @ 1353 min17m
11 Jan 2024 @ 13361m 8s 10m
11 Jan 2024 @ 13261m 10s 10m
11 Jan 2024 @ 13161m 10s 28m
11 Jan 2024 @ 1248 maj2m 25s 19m
11 Jan 2024 @ 1229 min19m
11 Jan 2024 @ 1210 min11m
11 Jan 2024 @ 11591m 34m
11 Jan 2024 @ 1125 maj3m 46m
11 Jan 2024 @ 1039 maj2m 25s 46m
11 Jan 2024 @ 0953 min18m
11 Jan 2024 @ 0935 min17m
11 Jan 2024 @ 09181m 10m
11 Jan 2024 @ 0908 min15m
11 Jan 2024 @ 0853 min7m
11 Jan 2024 @ 0846 min5m
11 Jan 2024 @ 0841 min5m
11 Jan 2024 @ 0836 min7m
11 Jan 2024 @ 0829 min8m
11 Jan 2024 @ 0821 min5m
11 Jan 2024 @ 0816 min5m
11 Jan 2024 @ 0811 min22s 6m
11 Jan 2024 @ 080550s 14h 8m
10 Jan 2024 @ 1757 min15s 4m
10 Jan 2024 @ 1753 min4m
10 Jan 2024 @ 1749 min25s 3m
10 Jan 2024 @ 1746 min10s 2m
10 Jan 2024 @ 1744 min10s 5m
10 Jan 2024 @ 1739 min20s 4m
10 Jan 2024 @ 1735 min15s 3m
10 Jan 2024 @ 1732 min15s 4m
10 Jan 2024 @ 1728 min15s 4m
10 Jan 2024 @ 1724 min25s 5m
10 Jan 2024 @ 1719 min30s 15m
10 Jan 2024 @ 1704 maj3m 20s 30m
10 Jan 2024 @ 1634 maj2m 21s 35m
10 Jan 2024 @ 1559 maj2m 51s 47m
10 Jan 2024 @ 1512 maj~2m 2h 12m
10 Jan 2024 @ 1300 A maj2d 23h 0m
07 Jan 2024 @ 1400 min16m
07 Jan 2024 @ 1344 min10m
07 Jan 2024 @ 1334 min9m
07 Jan 2024 @ 132535s 20m
07 Jan 2024 @ 130511m
07 Jan 2024 @ 1254 min10m
07 Jan 2024 @ 1244 min6m
07 Jan 2024 @ 1238 min4m
07 Jan 2024 @ 1234 min5m
07 Jan 2024 @ 1229 min5m
07 Jan 2024 @ 1224 min6m
07 Jan 2024 @ 1218 min5m
07 Jan 2024 @ 1213 min8m
07 Jan 2024 @ 120555s 3m
07 Jan 2024 @ 1202 min21m
07 Jan 2024 @ 1141 maj2m 12s 10m
07 Jan 2024 @ 1131 min10m
07 Jan 2024 @ 11211m 15s 10m
07 Jan 2024 @ 1111 min11m
07 Jan 2024 @ 11001m 15m
07 Jan 2024 @ 104555s 5m
07 Jan 2024 @ 1040 min6m
07 Jan 2024 @ 1034 min15m
07 Jan 2024 @ 1019 min10m
07 Jan 2024 @ 10091m 2s 10m
07 Jan 2024 @ 095955s 5m
07 Jan 2024 @ 0954 min5m
07 Jan 2024 @ 0949 min5m
07 Jan 2024 @ 0944 min4m
07 Jan 2024 @ 0940 min4m
07 Jan 2024 @ 0936 min5m
07 Jan 2024 @ 0931 min3m
07 Jan 2024 @ 0928 min5m
07 Jan 2024 @ 0923 min8m
07 Jan 2024 @ 0915 min5m
07 Jan 2024 @ 0910 min3m
07 Jan 2024 @ 0907 min6m
07 Jan 2024 @ 0901 maj1m 45s 6m
07 Jan 2024 @ 0855 min5m
07 Jan 2024 @ 0850 min7m
07 Jan 2024 @ 0843 min4m
07 Jan 2024 @ 0839 min4m
07 Jan 2024 @ 0835 min6m
07 Jan 2024 @ 0829 min6m

Interval Statistics

Interval Count100
Min2m
Max15d 4h 31m
Mean11h 6m
Median8m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
34052 19 Feb 2024 @ 1600 --- caressej1 increase in overflow and frequent bubbles
34048 19 Feb 2024 @ 0908 --- BrandonC Slight overflow, yesterday there was trinkling overflow under and past the boardwalk
34026 13 Feb 2024 @ 1534 --- mhvogel In overflow when I walked up. Recently erupted. Erupting about every 3 hours.
33976 05 Feb 2024 @ 1334 --- Pholli in overflow
33969 03 Feb 2024 @ 1449 --- Pholli water below rim. stayed for 30 mins and very little change. possibly slowly filling. frequently bubbles up and can see some convection
33949 29 Jan 2024 @ 1200 29 Jan 2024 @ 1300 BrandonC Strong runoff trickling past the boardwalk
33923 25 Jan 2024 @ 1445 --- aferrara slight overflow with convection over its vent
33881 19 Jan 2024 @ 0955 --- K.Cooper light overflow to past boardwalk, slowing, no bubbles or other activity
33880 19 Jan 2024 @ 0822 --- K.Cooper pool low, at white band, no runoff or bubbles; lots of snowmelt from last night but unclear if due to activity
33875 18 Jan 2024 @ 1513 --- K.Cooper well below overflow, no bubbles, quiet
33868 18 Jan 2024 @ 0758 --- K.Cooper a tad below overflow. convecting
33841 17 Jan 2024 @ 1440 --- K.Cooper down low
33839 17 Jan 2024 @ 1325 --- K.Cooper sitting high at overflow with bubbles. doesn't seem to want to drip
33838 17 Jan 2024 @ 1156 --- K.Cooper dropping
33837 17 Jan 2024 @ 1131 --- K.Cooper Overflow starting on the front side. came up fast. some bubbles
33836 17 Jan 2024 @ 1018 --- K.Cooper down low, bubbling again
33835 17 Jan 2024 @ 0950 --- K.Cooper dropping and bubbling stopped
33834 17 Jan 2024 @ 0909 --- K.Cooper light continuous bubbles, barely overflowing
33829 16 Jan 2024 @ 1645 --- K.Cooper >30 minutes of observation: 1645 below overflow but rising 1653 near overflow 1656 starting overflow 1702 moderate overflow 1709 back up to normal high levels 1715 lots of overflow, decent convection 1718 overflow nearing most it's done since last snow. lots of convection 1732 most overflow since last storm. strong doming convection 1800 dropping and were leaving
33828 16 Jan 2024 @ 1626 --- K.Cooper below overflow
33827 16 Jan 2024 @ 1540 --- K.Cooper Overflowing towards boardwalk
33821 16 Jan 2024 @ 1220 --- K.Cooper light overflow
33815 16 Jan 2024 @ 0931 --- K.Cooper light overflow to past boardwalk, no bubbles
33812 16 Jan 2024 @ 0857 --- K.Cooper just below overflow
33800 15 Jan 2024 @ 1530 --- K.Cooper nearing overflow
33798 15 Jan 2024 @ 1155 --- K.Cooper well below overflow
33797 15 Jan 2024 @ 1122 --- K.Cooper strong overflow, lots of water going under the bw
33795 15 Jan 2024 @ 0818 --- K.Cooper hair below overflow
33792 14 Jan 2024 @ 1938 --- K.Cooper back in ovfl with light trickle towards boardwalk
33791 14 Jan 2024 @ 1805 --- K.Cooper below overflow by about an inch. not in seires
33785 14 Jan 2024 @ 1438 --- K.Cooper high with slight overflow under the bw, east econ high. no bubbles
33781 14 Jan 2024 @ 0931 --- Pholli pool high, but no runoff. east economic full. both steaming quietly
33772 12 Jan 2024 @ 0758 --- Graham Series over. Full and overflowing with snow in runoff areas. East Economic full. 1157 Steam seen from Grand. Heavier trickling overflow.
33765 10 Jan 2024 @ 0753 --- Graham 0753 below overflow at brown ring. Wet in channels. No indication of any eruption. 0817 in overflow 0900 overflow and bubbling. Pooling other side of the boardwalk 0950 unchanged. 1030 same level no bubbling 1132 unchanged 1210 light overflow with small bubbles 1426 in overflow with increased snowmelt due to an eruption. Continuous observation from now till eruptions observed. 1501 slightly stronger bubbling, short duration. 1512 major
33764 09 Jan 2024 @ 0742 --- Graham Economic water levels were up and down a small amount today. In the afternoon, I saw bubbling over the vent, first observation since the series ended. Nothing exciting to make me want to stay and watch it for long periods. FYI, when I refer to overflow, it overflows toward the boardwalk, which is easy to watch and leads to the pooling on the other side of the boardwalk. The overflow to the right of the crater is at an earlier/lower point but harder to watch for. None of the overflow is very strong, mainly trickling. 0742 Up at crater ring. There is no evidence of eruptions overnight. 1003 in overflow. 1020 below overflow but high. 1038 dropped to brown ring. 1113 dropped into the tan ring. 1128 recovered a bit. 1159 in overflow. 1316 wet on the other side of the boardwalk (must have overflowed recently). Just below overflow now, bubbling over vent. Went up a bit after this, into overflow. 1418 more overflow, pooling other side of boardwalk. 1426 dropped a little. 1543 unchanged.
33761 08 Jan 2024 @ 0820 --- Graham 0820 Recovered and in overflow. Overflowing all sides, pooling water across the other side of the boardwalk. Seeing convection over the vent but no bubbling. There are some bubbles coming up near the front rim. Note that the day before it erupted there was steady light bubbling over the vent, sending waves across the pool. 1220 below overflow in crater brown ring area. 1315 Back in light overflow. 1339 below overflow but not by much. ~1430 lower, water in crater brown ring area.
33756 07 Jan 2024 @ 1436 --- Graham Pool slowly rising, looks to be over. Grand erupted just after last eruption. This is a complete record of eruptions since 0756, 48 eruptions over 6h4m. 1535 water starting to rise up the top inner rim. 4 inches below full level. 1645 up an inch.
33755 07 Jan 2024 @ 0920 --- Graham One bubble burst with no follow up
33754 07 Jan 2024 @ 0833 --- Graham Splashed but didn't erupt
33751 06 Jan 2024 @ 1215 --- Graham Overflowing under the boardwalk. Was below overflow 2h ago. 1234 dropped below overflow. 1241 overflow. 1415 Still high. 1606 dropped into inner ring like at 1015.
33483 28 Dec 2023 @ 1457 --- aferrara no runoff
33482 28 Dec 2023 @ 1359 --- aferrara heavy overflow, bacterial growth in runoff channels
33393 25 Dec 2023 @ 0947 --- Pholli zero overflow, water stagnant and low
33372 22 Dec 2023 @ 1507 --- Pholli heavy overflow, can see all the channels are all full and flowing. video of overflow https://i.imgur.com/UXl3j1l.mp4
32255 06 Dec 2023 @ 1540 --- aferrara Surrounded by large chunks of white debris not present last month, completely clear of bacteria. Runoff channels significantly deepened since November. Likely erupted in the last month.
29244 30 Oct 2023 @ 1017 --- Darcie In overflow
29242 29 Oct 2023 @ 1600 --- SantaFe108 Watched another overflow cycle around this time. This one was stronger than this morning with good convection over the vent.
29205 29 Oct 2023 @ 1100 29 Oct 2023 @ 1150 SantaFe108 Appears to have just recently began overflowing towards Grand, Also seeping towards the boardwalk. 1110 Runoff increasing towards Grand, now in two channels. 1120 Runoff continues to increase and a third channel at the far end of the pool is now flowing as well. 1128 Entire south rim overflowing towards Grand, a really sudden increase. Convection over the vent. Also overflowing towards the boardwalk. 1136 Channels towards Grand are completely flooded, just a massive amount of runoff. 1143 Overflow has decreased, channels facing the boardwalk are barely a trickle, and the Grand side is not so floody anymore but still covering the whole rim. 1145 Boardwalk side Overflow completely stopped. Bits of the south rim are beginning to resurface. 1148 Overflow is now consolidated to just three channels on the south side. 1150 Leaving as cycle is near the end and barely overflowing.
29202 29 Oct 2023 @ 1020 --- SantaFe108 Below overflow and very hot. Runoff channel leading towards Grand has no ice and has vapor coming off of it. Small convections over the vent.
29129 25 Oct 2023 @ 0930 25 Oct 2023 @ 0940 aferrara Walked up to heavy steam, with a sheet of water coming of Economic toward Grand, with gentle boiling episodes about every 1 minute. Over the 10 minutes it slowed down, and water levels dropped to a bare overflow from the deepest runoff channel.
28995 22 Oct 2023 @ 1233 --- Pholli 3 runoff channels all flowing
28897 20 Oct 2023 @ 1400 --- OFVEC overflowing
28812 15 Oct 2023 @ 1213 --- SantaFe108 *Barely* seeping towards Grand, starting to kill bacteria on the east and south sides.
28730 10 Oct 2023 @ 1508 --- aferrara Overflowing in both runoff channels. Bits of bacteria circulating above vent.
28720 09 Oct 2023 @ 1545 --- aferrara In slight overflow, convection visible over vent
25775 21 May 2023 @ 1241 --- Janet Jones Shows evidence of recent runoff - carved channels in the gravel.
25229 23 Apr 2023 @ 1637 --- SantaFe108 Bright orange with clear water. Wafting steam off the surface.
22466 10 Jul 2022 @ 1444 --- User34 At overflow and convecting over vent
21951 12 Jun 2022 @ 1506 --- Graham Below overflow.
21923 11 Jun 2022 @ 1347 --- Graham Below overflow.
21919 11 Jun 2022 @ 1043 --- Graham Calm and overflowing.
21906 10 Jun 2022 @ 2111 --- Forestbewithyou In high overflow
21887 10 Jun 2022 @ 1033 --- RMichaels In overflow with light convection over the vent.
21870 09 Jun 2022 @ 1314 --- Forestbewithyou In overflow and calm
21860 09 Jun 2022 @ 0908 --- aferrara weak to moderate overflow in south channel only
21838 08 Jun 2022 @ 1712 --- Graham At high overflow and calm.
21830 08 Jun 2022 @ 1222 --- SantaFe108 Barely below overflow and calm.
21825 08 Jun 2022 @ 0939 --- SantaFe108 Calm with with good overflow.
21816 07 Jun 2022 @ 1818 --- SantaFe108 In overflow and calm.
21773 06 Jun 2022 @ 1024 --- Graham In high overflow and calm.
21749 05 Jun 2022 @ 1400 --- SantaFe108 Pool is calm with overflow.
21735 05 Jun 2022 @ 0802 --- Graham Calm and overflowing.
21724 04 Jun 2022 @ 1521 --- Graham Below overflow near the white ring. Calm.
21718 04 Jun 2022 @ 1027 --- Graham Below overflow, but close to it.
21715 04 Jun 2022 @ 0823 --- Stephen_Gemar Pool beginning to drop. Still overflowing from its established channels.
21713 04 Jun 2022 @ 0806 04 Jun 2022 @ 0815 Stephen_Gemar Full and overflowing out of all of its runoff channels with convection over the vent. There is a slight trickle of runoff flowing out towards the boardwalk, right behind the Economic Geyser sign. Did not drop before I left.
21669 02 Jun 2022 @ 1421 --- Graham Down below overflow again and calm.
21666 02 Jun 2022 @ 1219 --- Graham Up to barely overflowing.
21665 02 Jun 2022 @ 1136 --- Graham Calm and below overflow.
21656 02 Jun 2022 @ 1037 --- Stephen_Gemar In overflow.
21651 02 Jun 2022 @ 0815 --- aferrara 0815: Overflow to south runoff channel, just below west runoff channel. 0819: Water circulating above vent, and slowly dropping. 0825: Water level rising.
21627 01 Jun 2022 @ 0755 --- Graham Calm and overflowing.
21598 31 May 2022 @ 1305 --- Stephen_Gemar In overflow.
21596 31 May 2022 @ 1125 --- Graham Calm and in high overflow.
21579 30 May 2022 @ 0722 --- Graham In calm overflow. Same 0937
21575 29 May 2022 @ 1520 --- Graham Just dropped below overflow and still bubbling. 1635 rising slowly and no longer bubbling. 1727 still rising and calm, close to overflow. 1745 in light overflow. Below overflow ~2h15m. Up in high overflow now and calm 1915.
21574 29 May 2022 @ 1456 --- Graham Full and bubbling over the vent pushing out waves.
21570 29 May 2022 @ 1226 --- Stephen_Gemar Below overflow.
21566 29 May 2022 @ 0959 --- Graham Below overflow
21554 28 May 2022 @ 1404 --- Graham In overflow.
21548 28 May 2022 @ 1038 --- Graham Below overflow
21539 27 May 2022 @ 1815 --- Graham Down below overflow.
21525 27 May 2022 @ 0941 --- Graham Full and overflowing.
21523 27 May 2022 @ 0700 --- Graham Dropped below overflow and exposed some of the bacteria mat below the rim.
21511 26 May 2022 @ 1029 --- TSBryan fairly strong overflow, convection visible above vent
21161 04 May 2022 @ 0910 --- RMichaels Light overflow to the south and faint convection over the vent.
21155 02 May 2022 @ 1627 --- RMichaels Below overflow with occasional bubbles breaking the surface.
21121 28 Apr 2022 @ 0910 --- aferrara Very hot with overflow toward Grand, and light trickle of water toward boardwalk. Thin flakes of white geyserite up to 3" long scattered, surrounding vent.
20968 09 Apr 2022 @ 1440 --- mhreed Mats are pinkish gray in color. Steady stream of small gas bubbles rising from vent (water appears greenish blue there).
20882 11 Mar 2022 @ 0910 --- aferrara 162F, in slight but steady overflow. Two runoff channels being excised down. Both were shallow but visible last week, not present in my pictures from February 18.
No attachments for this geyser.
Baseline does not exist.