Last Known Eruption
14h 26m ago

Latest Eruptions

Eruption DurationInterval
28 Jun 2022 @ 16109s 2h 4m
28 Jun 2022 @ 14069s 19h 21m
27 Jun 2022 @ 18454h 4m
27 Jun 2022 @ 144149m
27 Jun 2022 @ 135212s 25m
27 Jun 2022 @ 132711s 48m
27 Jun 2022 @ 12399s 28m
27 Jun 2022 @ 12111h 7m
27 Jun 2022 @ 11041h 14m
27 Jun 2022 @ 095022h 12m
26 Jun 2022 @ 11389s 24m
26 Jun 2022 @ 11147s 18h 37m
25 Jun 2022 @ 16378s 26m
25 Jun 2022 @ 16118s 32m
25 Jun 2022 @ 15397s 2h 56m
25 Jun 2022 @ 12431d 20h 57m
23 Jun 2022 @ 154639m
23 Jun 2022 @ 150710m
23 Jun 2022 @ 14579s 19m
23 Jun 2022 @ 14387s 21m
23 Jun 2022 @ 14178s 19m
23 Jun 2022 @ 13587s 25m
23 Jun 2022 @ 13339s 46m
23 Jun 2022 @ 124711s 20h 33m
22 Jun 2022 @ 161412s 48m
22 Jun 2022 @ 152611s 27m
22 Jun 2022 @ 145911s 27m
22 Jun 2022 @ 143210s 21m
22 Jun 2022 @ 14114d 53m
18 Jun 2022 @ 13181h 6m
18 Jun 2022 @ 12129s 22h 19m
17 Jun 2022 @ 135312d 23h 11m
04 Jun 2022 @ 144211s 58m
04 Jun 2022 @ 1344 min1d 4h 37m
03 Jun 2022 @ 090716h 50m
02 Jun 2022 @ 161722m
02 Jun 2022 @ 15551h 6m
02 Jun 2022 @ 144924m
02 Jun 2022 @ 142522m
02 Jun 2022 @ 140328m
02 Jun 2022 @ 13356d 18h 25m
26 May 2022 @ 191020m
26 May 2022 @ 185022m
26 May 2022 @ 18282h 50m
26 May 2022 @ 153850m
26 May 2022 @ 14482h 41m
26 May 2022 @ 120719m
26 May 2022 @ 11482h 15m
26 May 2022 @ 093319m
26 May 2022 @ 091419h 3m
25 May 2022 @ 141128m
25 May 2022 @ 1343Pushed 133921m
25 May 2022 @ 132219m
25 May 2022 @ 130323m
25 May 2022 @ 1240 min26m
25 May 2022 @ 121448m
25 May 2022 @ 1126Pushed 112442m
25 May 2022 @ 10441d 19h 7m
23 May 2022 @ 153719m
23 May 2022 @ 151820m
23 May 2022 @ 145825m
23 May 2022 @ 14331h 47m
23 May 2022 @ 124644m
23 May 2022 @ 120232m
23 May 2022 @ 113027m
23 May 2022 @ 110320m
23 May 2022 @ 104326m
23 May 2022 @ 10171h 33m
23 May 2022 @ 08447d 18h 9m
15 May 2022 @ 143527m
15 May 2022 @ 14081h 18m
15 May 2022 @ 125030m
15 May 2022 @ 122025m
15 May 2022 @ 115519m
15 May 2022 @ 113624m
15 May 2022 @ 111226m
15 May 2022 @ 10469m
15 May 2022 @ 103724m
15 May 2022 @ 101322m
15 May 2022 @ 095119m
15 May 2022 @ 093219m
15 May 2022 @ 091321m
15 May 2022 @ 08523d 20h 14m
11 May 2022 @ 123819m
11 May 2022 @ 121922m
11 May 2022 @ 115729m
11 May 2022 @ 112831m
11 May 2022 @ 105720m
11 May 2022 @ 103719m
11 May 2022 @ 101849m
11 May 2022 @ 09294d 21h 10m
06 May 2022 @ 121950m
06 May 2022 @ 11291h 28m
06 May 2022 @ 10011d 19h 9m
04 May 2022 @ 14526d 3h 31m
28 Apr 2022 @ 112134m
28 Apr 2022 @ 104724m
28 Apr 2022 @ 10231d 22h 0m
26 Apr 2022 @ 122324m
26 Apr 2022 @ 115921m

Interval Statistics

Interval Count100
Min9m
Max12d 23h 11m
Mean15h 9m
Median29m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
21728 04 Jun 2022 @ 1408 04 Jun 2022 @ 1416 cb Tried to duel with Whirligig. blips & overflow started @ 1408, 6" roiling bloops st 1409, pool dropped @ 1416 exposing 10" of red rim. no eruption
21727 04 Jun 2022 @ 1319 04 Jun 2022 @ 1326 cb blips, overflow, waves, pool drops below overflow ~1' exposing red rim. no eruption
21739 02 Jun 2022 @ 1518 --- CP A period of very light boiling to 1523.
21603 31 May 2022 @ 1333 31 May 2022 @ 1340 cb again same play as previous notes. copious overflow, convection waves, blips, pool drops, no eruption.
21602 31 May 2022 @ 1311 31 May 2022 @ 1317 cb same as previous notes. push, convection waves, blips, copious overflow. pool drops, no eruption.
21601 31 May 2022 @ 1246 31 May 2022 @ 1252 cb same as last note. push, waves, copious overflow, blips, pool drops, no eruption.
21600 31 May 2022 @ 1224 31 May 2022 @ 1230 cb push, convection waves, 4" blips, copious overflow, pool dropped @ 1229, no eruption
21620 31 May 2022 @ 1050 --- novakg Push with a small boil from the center. Pool dropped after the push. It may be worth noting the snowy, cold weather the day before and, after the snow passed, rain.
21497 25 May 2022 @ 1144 --- Graham Pushed
21495 25 May 2022 @ 1103 --- Graham Pushed
21492 25 May 2022 @ 1023 --- Graham Pushed
21490 25 May 2022 @ 1000 --- Graham Pushed.
21488 25 May 2022 @ 0934 --- Graham Pushed
21487 25 May 2022 @ 0908 --- Graham Pushed.
21116 27 Apr 2022 @ 1647 --- DanS Attempt at start, then aborted. Pool dropped.
20289 04 Nov 2021 @ 1650 --- MAB post eruptive
20226 30 Oct 2021 @ 1143 --- cb pool is low. edges exposed. came up and was blipping when we left the area.
20170 28 Oct 2021 @ 1522 --- MAB nothing further out of Constant by 1522
20004 16 Oct 2021 @ 1200 16 Oct 2021 @ 1736 cb no eruption yet. pool was very quiet when i arrived. no blips or bloops, no convection waves. Finally saw small Blips at ~1500. 1600 some occational small blips & convection waves. Pool overflowing. Walked back this way after viewing evening Cistern.
19721 24 Sep 2021 @ 0830 --- Graham Pool low and rising, presumably post-eruptive. Reache'd overflow and held that level. 1205 had some waves on the pool. Waves continuous 1217. No eruption by 1700, so over 8.5h interval.
19484 11 Sep 2021 @ 1532 --- Graham Some. bubbling over the vent, first sign of life in almost 5 hours. 1640 still no eruption or push when I departed.
19387 08 Sep 2021 @ 0845 08 Sep 2021 @ 1530 CrisG no eruptions during this time
19255 01 Sep 2021 @ 1600 --- MAB No Constant eruptions 0900 to 1600 - slight increase in blips occasionally but no bigger cyclic pushes with pool dropping - steady overflow all day {pool was unchanged upon return from post-Whirligig breaks}
19115 27 Aug 2021 @ 1846 --- MAB arrived 0840 to a full pool - small blips with minuscule waves was the biggest action - as far as I could tell it never dropped after the mini pushes continuing to lightly flow thru Little Whirligig and more runoff in the other channel SE - pool was unchanged upon return from breaks - 10hrs+ with no eruption
19104 27 Aug 2021 @ 0752 27 Aug 2021 @ 0817 steve Constant is full and overflowing with no bubbling or rocking in the pool. Whirligig is just below overflow .
19078 25 Aug 2021 @ 1827 --- kc 1 burst of dirty water
19077 25 Aug 2021 @ 1250 --- kc 17 bursts of dirty water with good height over a span of 25 minutes. No eruptions at least 4 hours prior to eruption.
18999 22 Aug 2021 @ 1635 --- MAB except for a brief break I had eyes on Constant which did not erupt from 0900 to 1635. Upon returning from break pool level looked the same - no noticeable pushes w no eruption and the typical drop just ever so subtle drops - very windy and lighting was bad so it was difficult to watch overflow but it did vary
18887 10 Aug 2021 @ 1035 10 Aug 2021 @ 1502 cb All eruptions in this time frame are closed intervals. Constant eruptions today are inconsistent and varied a lot in height, burst count and intervals!
18390 12 Jul 2021 @ 1753 --- cb FYI. Constant has not put out pushes/overflow that reaches the monitor minutes before the eruption all day like it was earlier this spring.
18303 06 Jul 2021 @ 1853 --- WillBoekel reached first overflow
18304 06 Jul 2021 @ 1833 --- WillBoekel small bubble up and push
17091 14 May 2021 @ 1452 --- cb another push but pool dropped when Whirligig started to play.
17092 14 May 2021 @ 1425 14 May 2021 @ 1431 cb push with no eruption. 1435 pool dropped to expose its edges
17066 12 May 2021 @ 1730 --- MAB When Constant tries and fails it's hard to pin down the missed start time as roiling and waves begin 2 min before actual eruption fyi if the maths seem off. The 2 longer intervals later in the day did not include pushes- 2 of us were watching
17018 09 May 2021 @ 1412 09 May 2021 @ 1419 cb pool pushed with great overflow and nice 5" blooping/roiling boil. Sure looked like it would erupt but the pool crashed @ 1419.
17020 09 May 2021 @ 1334 09 May 2021 @ 1357 cb pool came up, the vent boiled up for ~8 minutes, good overflow down the runoff channel. We thought we would get another eruption but the pool crashed at 1356. During this period Whirligig side and shore vents briefly played twice.
17012 08 May 2021 @ 1515 08 May 2021 @ 1630 cb pool was high and was overflowing with blips over the vent. It blipped and blurped but never erupted. Pool dramatically dropped at 1534. refilling @ 1559. overflowing @ 1603 with 5" blips, 1607 pool dropping. 1608 pool crashed. 1620ish pool filling, 1630 pool overflowing with blips when I left.
16944 28 Apr 2021 @ 0936 28 Apr 2021 @ 1236 MAB Pool level is low - no outwash down the 'ramp' until just prior to eruptions or sometimes not til the eruption itself
16136 14 Sep 2020 @ 1223 --- Graham Splashes but no eruption.
16135 14 Sep 2020 @ 1130 --- Graham Push but no eruption.
15034 18 Jul 2020 @ 1017 --- Mkeller Waves and roiling but no eruption
15032 18 Jul 2020 @ 0917 --- Mkeller Waves and roiling but no eruption
15033 18 Jul 2020 @ 0843 --- Mkeller Waves and roiling but no eruption
15031 18 Jul 2020 @ 0811 --- Mkeller Waves and roiling but no eruption
15030 18 Jul 2020 @ 0659 --- Mkeller Waves and roiling but no eruption
15029 18 Jul 2020 @ 0619 --- Mkeller Waves and roiling but no eruption
14973 13 Jul 2020 @ 1504 --- nails Boiled up, no eruption
14972 13 Jul 2020 @ 1430 --- nails Boiled up, no eruption
14776 29 Jun 2020 @ 0900 29 Jun 2020 @ 1023 Graham fluctuating up and down. Splashed at 0947.
14760 28 Jun 2020 @ 1054 --- Mkeller Waves and roiling but no eruption
14759 28 Jun 2020 @ 0948 --- Mkeller Waves and roiling but no eruption
14758 28 Jun 2020 @ 0805 --- Mkeller Waves and roiling but no eruption
13795 24 Sep 2019 @ 1607 --- DanS Domed.
13794 24 Sep 2019 @ 1546 --- DanS Domed.
13792 24 Sep 2019 @ 1525 --- DanS Bubbling. No eruption.
13791 24 Sep 2019 @ 1505 --- DanS Domed but didn’t erupt
13705 15 Sep 2019 @ 1216 --- Skookum Push, no eruption. 4min boil before subsiding.
13247 14 Aug 2019 @ 1508 14 Aug 2019 @ 1513 cb push but did not erupt
13246 14 Aug 2019 @ 1448 14 Aug 2019 @ 1454 cb push but no eruption
13245 14 Aug 2019 @ 1427 14 Aug 2019 @ 1433 cb push but no eruption
13244 14 Aug 2019 @ 1408 14 Aug 2019 @ 1412 cb push but no eruption
12793 25 Jul 2019 @ 0950 25 Jul 2019 @ 1250 cb Attempts to erupt but fails. Nice boil that looks like it will erupt, stays boiling for 4+m, then stops and pool falls below overflow. Constants pool is being filled by 5 small erupters that seem to run along a line to the north east (up toward the Graceful area) Attempts @ 1007, 1025, 1042, 1058, 1116 made 2 good attempts at erupting but again failed, 1133, 1150, 1210 erupted! 1225, 1243.
11765 13 Jun 2019 @ 0840 13 Jun 2019 @ 1005 CrisG no eruptions during this period. very steamy morning, so difficult to see pool. Arrived to a full pool. I did not notice any pool crashes based on rock coverage, but unable to see convection/bubbling until right before eruption.
11768 12 Jun 2019 @ 1130 12 Jun 2019 @ 1242 CrisG No eruptions during this time (3rd burst of previous eruption was at 1230). Left for Steamboat!
11070 24 Apr 2019 @ 1340 24 Apr 2019 @ 1425 DanS Tried to erupt about 1340, 1400, 1425. Wind and hail aborted.
8265 22 May 2018 @ 1225 22 May 2018 @ 1233 cb another boil with convection waves but failed to erupt
8263 22 May 2018 @ 1154 22 May 2018 @ 1200 cb small boil to about 3 inches. put out nice convection waves but did not erupt
8173 12 May 2018 @ 1024 12 May 2018 @ 1535 srboom Pool would fill and try to erupt about every twenty minutes for the entirety of the time I was there, but no eruptions were observed. The try at 1327 looked really promising, but no go. There appears to be a fair amount of water flowing in from another source.
8097 07 May 2018 @ 1047 07 May 2018 @ 1436 cb Did not erupt while I was there. It did have 2 nice boils that each lasted for 6 minutes and were 90 minutes apart.
7772 25 Oct 2017 @ 1308 --- DanS Another aborted eruption with only water doming.
7771 25 Oct 2017 @ 1228 --- DanS Tried to erupt, but aborted. Windy!
7774 29 Sep 2017 @ 1601 29 Sep 2017 @ 1639 Tara Pushes at 1601, 1614, 1627, and 1639.
7773 29 Sep 2017 @ 1322 29 Sep 2017 @ 1345 Tara Pushes at 1322, 1333, and 1345.
5894 07 Sep 2017 @ 1805 --- Graham Tried and failed
5895 07 Sep 2017 @ 1703 --- Graham Tried and failed. Would have been a trio with Fireball and Arsenic.
5896 07 Sep 2017 @ 1629 --- Graham Tried and failed.
5897 07 Sep 2017 @ 1602 --- Graham Tried and failed. Would have been a trio with Whirligig and Fireball.
5898 07 Sep 2017 @ 1529 --- Graham Tried and failed
5899 07 Sep 2017 @ 1234 --- Graham Tried and failed
5900 07 Sep 2017 @ 1208 --- Graham Tried but failed
5901 07 Sep 2017 @ 1137 --- Graham Tried but failed
5902 07 Sep 2017 @ 1111 --- Graham Tried and failed.
5903 07 Sep 2017 @ 1037 --- Graham Tried but failed.
5871 05 Sep 2017 @ 1409 --- Pat Snyder push and fail. 20 min push
5872 05 Sep 2017 @ 1346 --- Pat Snyder Push no eruption.
5873 05 Sep 2017 @ 1315 --- Pat Snyder push no eruption
5874 05 Sep 2017 @ 1247 --- Pat Snyder push no eruption
5875 05 Sep 2017 @ 1209 --- Pat Snyder push no eruption
5876 05 Sep 2017 @ 1140 --- Pat Snyder Fill bt no eruption
5785 04 Sep 2017 @ 1707 --- Graham Tried and failed
5786 04 Sep 2017 @ 1531 --- Graham Tried and failed
5787 04 Sep 2017 @ 1422 --- Graham Tried but failed
5788 04 Sep 2017 @ 1310 --- Graham Tried but failed.
5077 19 Aug 2017 @ 1546 --- CrisG Decent fill (best I've seen so far today) with bubbling, but no eruption and pool fell.
4937 17 Aug 2017 @ 1415 17 Aug 2017 @ 1924 nails No eruptions observed during this time period. Would heat up and bubble for about 4 to 5 minutes, then crash at about 20 minutes intervals. Boiled at 1434, 1500, 1522, 1545, 1609, 1635, 1657, 1722, 1743, 1808, 1832, 1858, 1924.
4400 03 Jul 2017 @ 1342 --- Graham Tried to erupt.
4401 03 Jul 2017 @ 1323 --- Graham Tried to erupt.
4402 03 Jul 2017 @ 1246 --- Graham Tried to erupt but failed.
4326 16 Jun 2017 @ 1244 --- CrisG pool looked good, nice bubbling. Then pool crashed.
EntrySourceLinkComment
09 Aug 2014 @ 1654 JSJ https://www.flickr.com/photos/jsjgeology/15401110206 Photo (1 of 2) of Constant Geyser's 4:54 PM eruption on 9 August 2014.
09 Aug 2014 @ 1638 JSJ https://www.flickr.com/photos/jsjgeology/15237473020 Photo (1 of 3) of Constant Geyser's 4:38 PM eruption on 9 August 2014.
07 Jul 2014 @ 1755 JSJ https://www.flickr.com/photos/jsjgeology/15045557957 Photo (1 of 4) of Constant Geyser's 5:55 PM eruption on 7 July 2014.
07 Jul 2014 @ 1500 JSJ https://www.flickr.com/photos/jsjgeology/15232117335 Photo (1 of 5) of Constant Geyser's 3:00 PM eruption on 7 July 2014.
07 Jul 2014 @ 1443 JSJ https://www.flickr.com/photos/jsjgeology/15229022821 Photo (1 of 4) of Constant Geyser's 2:43 PM eruption on 7 July 2014.
07 Jul 2014 @ 1342 JSJ https://www.flickr.com/photos/jsjgeology/15045335649 Photo (1 of 3) of Constant Geyser's 1:42 PM eruption on 7 July 2014.
Baseline does not exist.