Last Known Eruption
143d 19h 28m ago

Latest Eruptions

Eruption DurationInterval
31 Oct 2022 @ 11481h 14m
31 Oct 2022 @ 10341h 39m
31 Oct 2022 @ 08552d 14h 47m
28 Oct 2022 @ 18089d 4h 15m
19 Oct 2022 @ 13533d 18h 48m
15 Oct 2022 @ 190522m
15 Oct 2022 @ 18431d 7h 44m
14 Oct 2022 @ 105925m
14 Oct 2022 @ 10341h 17m
14 Oct 2022 @ 09175d 13h 25m
08 Oct 2022 @ 195222m
08 Oct 2022 @ 19309h 50m
08 Oct 2022 @ 094021m
08 Oct 2022 @ 091920h 31m
07 Oct 2022 @ 124846m
07 Oct 2022 @ 120220m
07 Oct 2022 @ 114223m
07 Oct 2022 @ 111919h 52m
06 Oct 2022 @ 1526:069s 23h 55m
05 Oct 2022 @ 15319s 21m
05 Oct 2022 @ 151010s 22m
05 Oct 2022 @ 144810s 2d 4h 40m
03 Oct 2022 @ 10084d 24m
29 Sep 2022 @ 094422h 13m
28 Sep 2022 @ 113122h 6m
27 Sep 2022 @ 132522m
27 Sep 2022 @ 130323m
27 Sep 2022 @ 124025m
27 Sep 2022 @ 121530m
27 Sep 2022 @ 114519m
27 Sep 2022 @ 11269s 2d 15h 48m
24 Sep 2022 @ 19388h 45m
24 Sep 2022 @ 105322m
24 Sep 2022 @ 10311h 9m
24 Sep 2022 @ 092214h 49m
23 Sep 2022 @ 183313s 50m
23 Sep 2022 @ 174329m
23 Sep 2022 @ 171414s 49m
23 Sep 2022 @ 162543m
23 Sep 2022 @ 154235m
23 Sep 2022 @ 15072h 4m
23 Sep 2022 @ 130347m
23 Sep 2022 @ 121612s 21m
23 Sep 2022 @ 11551h 8m
23 Sep 2022 @ 104747m
23 Sep 2022 @ 10002d 18h 2m
20 Sep 2022 @ 15581h 36m
20 Sep 2022 @ 142227m
20 Sep 2022 @ 135522m
20 Sep 2022 @ 133326m
20 Sep 2022 @ 13073m
20 Sep 2022 @ 13041d 18h 17m
18 Sep 2022 @ 184710s 24m
18 Sep 2022 @ 182325m
18 Sep 2022 @ 17583h 8m
18 Sep 2022 @ 145023m
18 Sep 2022 @ 142726m
18 Sep 2022 @ 140124m
18 Sep 2022 @ 133725m
18 Sep 2022 @ 131230m
18 Sep 2022 @ 12424m
18 Sep 2022 @ 123818h 27m
17 Sep 2022 @ 181125m
17 Sep 2022 @ 17464d 2h 33m
13 Sep 2022 @ 151325m
13 Sep 2022 @ 144826m
13 Sep 2022 @ 142220m
13 Sep 2022 @ 140221m
13 Sep 2022 @ 13412d 19h 52m
10 Sep 2022 @ 17491h 30m
10 Sep 2022 @ 161923m
10 Sep 2022 @ 155629m
10 Sep 2022 @ 152719m
10 Sep 2022 @ 150820m
10 Sep 2022 @ 144821m
10 Sep 2022 @ 142733m
10 Sep 2022 @ 135418m
10 Sep 2022 @ 133621m
10 Sep 2022 @ 13152d 1h 32m
08 Sep 2022 @ 11431h 7m
08 Sep 2022 @ 103622m
08 Sep 2022 @ 101422m
08 Sep 2022 @ 095220m
08 Sep 2022 @ 093224m
08 Sep 2022 @ 090811h 23m
07 Sep 2022 @ 214520m
07 Sep 2022 @ 212524m
07 Sep 2022 @ 210141m
07 Sep 2022 @ 202010h 54m
07 Sep 2022 @ 092647m
07 Sep 2022 @ 083912h 40m
06 Sep 2022 @ 19592d 6h 41m
04 Sep 2022 @ 13182d 20h 42m
01 Sep 2022 @ 163610s 30m
01 Sep 2022 @ 16069s 5d 6h 8m
27 Aug 2022 @ 095826m
27 Aug 2022 @ 093219h 11m
26 Aug 2022 @ 14211d 23h 18m
24 Aug 2022 @ 150318m
24 Aug 2022 @ 144525m

Interval Statistics

Interval Count100
Min3m
Max9d 4h 15m
Mean16h 17m
Median31m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
25053 27 Feb 2023 @ 1401 --- MAB low upon arrival - we missed a push coming down from Congress
24986 15 Dec 2022 @ 1253 15 Jan 2023 @ 1301 Etimes-mab NOTE: Of interest, small spikes {1253 and 1301} in an unusual spot in the Constant cycle, noted here for the record and ease of finding this date again if more of these are seen. Link to temp graph: https://geysertimes.org/datalogger/analysis/loggerChart.php?g=79&l=22&t1=1673802000000&t2=1673823600000
24586 30 Oct 2022 @ 1839 --- MAB Constant had one push no eruption and dropped - no reason to stay for another after the Gig minor
24525 29 Oct 2022 @ 1815 29 Oct 2022 @ 1840 MAB Two failed attempts - 1815 & 1840 was visible roil times both followed by pool drop
24375 14 Oct 2022 @ 1833 14 Oct 2022 @ 1923 MAB three push no eruptions - times pool seen fully dropped 1833 1900 & 1923 - left Porcelain bench 1942 only to sit in a bison jam in Elk Park in da dark
24296 07 Oct 2022 @ 1225 --- DanS Bloops but no eruption
24029 23 Sep 2022 @ 1327 --- CrisG weaker push. going on a walk about to warm up.
24028 23 Sep 2022 @ 1238 --- CrisG push but no eruption
24027 23 Sep 2022 @ 1111 --- CrisG push but no eruption
24026 23 Sep 2022 @ 1028 --- CrisG push but no eruption
22748 20 Jul 2022 @ 2006 20 Jul 2022 @ 2011 nails 1 quick burst to about 2 feet. Pool stayed high and bubbling continued for 5 minutes and then water level dropped.
22621 16 Jul 2022 @ 1016 16 Jul 2022 @ 1025 cb push, pool stayed high, pool dropped. no eruption
22606 15 Jul 2022 @ 1640 15 Jul 2022 @ 1648 cb push, bubbled, no eruption. again chased away by lightning!
22604 15 Jul 2022 @ 1603 15 Jul 2022 @ 1610 cb push, no eruption
22603 15 Jul 2022 @ 1436 --- cb pool pushed, had one small splash, pool bubbled a bit then fell. no eruption.
22538 13 Jul 2022 @ 1015 --- cb push, bubbles, pool dropped. no eruption.
22537 13 Jul 2022 @ 0929 --- cb push no eruption
22382 07 Jul 2022 @ 1024 --- steve Time approximate. Filled with good overflow and bubbling but no eruption.
22379 07 Jul 2022 @ 0925 --- steve The time is approximate but Constant filled, good overflow and bubbling, but no eruption
22292 02 Jul 2022 @ 1709 --- cb There are 4 active bubblers in Constant's main runoff channel that flows past the living thermometer sign. 1st one from the pool is in the narrow neck of the channel, oblong in shape, 2" long and bubbling to 1". Other 3 are in the middle of the wide area, 1st of these vents from Constants pool is 2" in diameter and blipping to 2". Other 2 are smaller in diameter with a 1/2" bubble. There is a active Frying pan type sizzler between the runoff channel and the Constant bench, about 1' from the edge of the water in the dry pebbly area, that cycles water and sizzles/flashes.
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
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.