Last Known Eruption
2d 7h 16m ago

Latest Eruptions

Eruption DurationInterval
28 Jun 2024 @ 12174h 48m
28 Jun 2024 @ 07294h 32m 4d 15h 42m
23 Jun 2024 @ 15475h 42m
23 Jun 2024 @ 1005<5h 40m 5h 35m
23 Jun 2024 @ 0430 ie>5h 17m 14h 37m
22 Jun 2024 @ 13538h 48m
22 Jun 2024 @ 0505 ie>2h 58m 10h 34m
21 Jun 2024 @ 1831 maj5h 12m
21 Jun 2024 @ 13195h 24m
21 Jun 2024 @ 07555h 6m 2h 50m
21 Jun 2024 @ 0505 ie>1h 17m 1d 9h 42m
19 Jun 2024 @ 1923 ie maj2d 4m
17 Jun 2024 @ 1919 ie maj9h 8m
17 Jun 2024 @ 10112d 19h 41m
14 Jun 2024 @ 14301d 41m
13 Jun 2024 @ 13494h 44m
13 Jun 2024 @ 0905 ie1d 18h 56m
11 Jun 2024 @ 14094h 51m 7h 9m
11 Jun 2024 @ 0700 ie>7h 2m 19h 29m
10 Jun 2024 @ 11315h 56m
10 Jun 2024 @ 0535 ie>5h 42m 12h 58m
09 Jun 2024 @ 16371h 7m
09 Jun 2024 @ 1530 ie7h 21m
09 Jun 2024 @ 08092h 49m
09 Jun 2024 @ 0520 ie>2h 45m 18h 31m
08 Jun 2024 @ 1049 maj4h 39m
08 Jun 2024 @ 0610 ie20h 4m
07 Jun 2024 @ 1006 maj11m
07 Jun 2024 @ 09554m 4h 40m
07 Jun 2024 @ 0515 maj4h 33m 23h 15m
06 Jun 2024 @ 0600 ie>9h 8m 16h 30m
05 Jun 2024 @ 1330 maj5h 20m
05 Jun 2024 @ 0810 maj5h 10m 10m
05 Jun 2024 @ 08004m 2h 10m
05 Jun 2024 @ 0550 ie maj>2h 5m 2d 20h 15m
02 Jun 2024 @ 09357m
02 Jun 2024 @ 092854m
02 Jun 2024 @ 0834 ie17h 46m
01 Jun 2024 @ 1448 maj6m
01 Jun 2024 @ 14424m 8m
01 Jun 2024 @ 14344m 4m
01 Jun 2024 @ 14302m 4m
01 Jun 2024 @ 14262m 4m
01 Jun 2024 @ 14222m 5m
01 Jun 2024 @ 14173m 5m
01 Jun 2024 @ 14123m 4m
01 Jun 2024 @ 14082m 5m
01 Jun 2024 @ 14032m 5m
01 Jun 2024 @ 13582m 6m
01 Jun 2024 @ 13522m 6m
01 Jun 2024 @ 13462m 6m
01 Jun 2024 @ 13403m 6m
01 Jun 2024 @ 13343m 6m
01 Jun 2024 @ 13282m 6m
01 Jun 2024 @ 13222m 4m
01 Jun 2024 @ 13181m 6m
01 Jun 2024 @ 13123m 4m
01 Jun 2024 @ 13084m 4m
01 Jun 2024 @ 13042m 6m
01 Jun 2024 @ 12582m 7m
01 Jun 2024 @ 12514m 4m
01 Jun 2024 @ 12473m 1h 0m
01 Jun 2024 @ 11471m 9m
01 Jun 2024 @ 11381m 10m
01 Jun 2024 @ 11283m 11m
01 Jun 2024 @ 11172m 37m
01 Jun 2024 @ 10402m 15m
01 Jun 2024 @ 10253m 13m
01 Jun 2024 @ 10124m 11m
01 Jun 2024 @ 10013m 13m
01 Jun 2024 @ 09484m 17m
01 Jun 2024 @ 09315m 16m
01 Jun 2024 @ 09155m 15m
01 Jun 2024 @ 09004m 14m
01 Jun 2024 @ 08464m 9m
01 Jun 2024 @ 08373m 3h 13m
01 Jun 2024 @ 0524 ie maj>3h 7m 21h 41m
31 May 2024 @ 0743 maj>5h 45m 50m
31 May 2024 @ 06533m 5m
31 May 2024 @ 06482m 6m
31 May 2024 @ 06423m 5m
31 May 2024 @ 06372m 4m
31 May 2024 @ 06332m 4m
31 May 2024 @ 06292m 5m
31 May 2024 @ 06242m 5m
31 May 2024 @ 06192m 3m
31 May 2024 @ 06162m 18m
31 May 2024 @ 0558 ie5d 20h 31m
25 May 2024 @ 0927 maj7d 13h 23m
17 May 2024 @ 20041d 54m
16 May 2024 @ 19104d 3h 49m
12 May 2024 @ 15217m
12 May 2024 @ 151431d 15h 47m
10 May 2024 @ 23276h 1m
10 May 2024 @ 17265h 39m
10 May 2024 @ 11472d 26m
08 May 2024 @ 11212h 11m
08 May 2024 @ 0910 ie1d 2h 2m
07 May 2024 @ 0708 ie19h 8m
06 May 2024 @ 12003h 20m

Interval Statistics

Interval Count100
Min3m
Max7d 13h 23m
Mean12h 45m
Median52m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
35603 28 Jun 2024 @ 0520 28 Jun 2024 @ 0728 LynnS Clepsydra is in pause mode
35591 27 Jun 2024 @ 0821 27 Jun 2024 @ 0934 steve Observations from the road; Clepsydra has been turning on and off for the last hour. Off 0821, on 08323, off 0826, on 0831, off 0836, on 0843, off 0847, on 0853, off 0857, on 0904, off 0908, on 0914, off 0917, on 0920, off 0925, on 0930.
35579 26 Jun 2024 @ 1922 --- K.Cooper Off and staying off
35462 22 Jun 2024 @ 1926 --- Tara Off as seen from parking lot
35398 21 Jun 2024 @ 0745 --- K.Cooper appeared to be in pause mode from the road
35375 19 Jun 2024 @ 2036 --- Craigmon99 Thumping on larger jets
35292 17 Jun 2024 @ 1151 --- Craigmon99 Still in stall mode
35286 17 Jun 2024 @ 1024 --- Craigmon99 Pausing on and off every couple minutes
35285 17 Jun 2024 @ 1010 --- Craigmon99 Pausing
35283 16 Jun 2024 @ 2104 --- Craigmon99 Front pit vent filled with blue water during Fountain. Very loud sub audible thumps
35217 14 Jun 2024 @ 1221 14 Jun 2024 @ 1430 JSJ Off and on the entire time. Starts: 1223, 1227, 1232, 1336, 1242, 1247, 1252, 1257, 1303 ie, 1306, 1313 (still off at 1338 at least), 1359, 1407, 1412, 1421. 1430 - on & stayed on.
35213 14 Jun 2024 @ 0509 14 Jun 2024 @ 0514 LynnS Mot ie
35192 13 Jun 2024 @ 1825 --- Tara off as seen from parking lot.
35152 12 Jun 2024 @ 1800 --- Tara off as seen from parking lot
35009 08 Jun 2024 @ 1044 --- Tara Shut off for first and only pause.
34962 07 Jun 2024 @ 0948 --- Graham Paused 13m after Fountain quit
34961 07 Jun 2024 @ 0507 --- Graham Not ie. CSV empty. Water covering rocks in Fountain but not very high. Spasm ie and Jelly overflowing. Jet grumbling. Fountain platform has no steam. Prior Fountain may have been an aborted stall given the water level and relatively long Clepsydra pause.
34973 07 Jun 2024 @ 0450 --- LynnS Not in eruption
34932 06 Jun 2024 @ 1630 --- LynnS Still in pause mode after Fountain’s 1429 eruption.
34907 05 Jun 2024 @ 1320 --- Graham Paused 8m after Fountain quit.
34906 05 Jun 2024 @ 0755 --- Graham Paused 20m after Fountain quit.
34823 01 Jun 2024 @ 1148 01 Jun 2024 @ 1246 Graham Front vent mostly with some center vent activity and others. Duration of activity <1m. Became more distinct at the end so I started to log eruptions again.
34822 01 Jun 2024 @ 1043 01 Jun 2024 @ 1116 Graham Bursting in front vent only. No real eruption.
34821 01 Jun 2024 @ 0831 --- Graham Paused 12m after Fountain quit.
34754 29 May 2024 @ 1531 --- Stephen_Gemar Appears to be off from the road traveling southbound.
34752 29 May 2024 @ 1304 --- Stephen_Gemar Appears to be paused from the road.
34736 28 May 2024 @ 1545 28 May 2024 @ 1838 steve Fountain appears to be in a stall. Clepsydra varies between periods turning on and off with periods of just being off. Clepsydra spent more of this time off. Clepsydra came on about 1838 and appears to be staying on.
34600 17 May 2024 @ 1955 --- Tara shut off for 1st pause
34601 17 May 2024 @ 1931 --- Tara steam vent started erupting loudly and continued through at least 1452 when I left after Fountain was over
34588 16 May 2024 @ 1905 --- Ajw Stopped at 1905 after several short pauses starting at1903.
34562 14 May 2024 @ 2128 --- Tara still pausing after 2010 Fountain eruption, did not stay
34489 09 May 2024 @ 1453 --- Scott H Clep off, from the road
34481 08 May 2024 @ 1115 --- LynnS Stopped erupting sometime between 1105 and 1114
34406 04 May 2024 @ 1429 --- Tara start of 6th pause, Spasm and Ftn filling, probably a stall. left area
34416 04 May 2024 @ 1417 --- Tara start of 5th pause
34415 04 May 2024 @ 1405 --- Tara start of 4th pause
34414 04 May 2024 @ 1351 --- Tara start of 3rd pause
34413 04 May 2024 @ 1340 --- Tara start of 2nd pause
34412 04 May 2024 @ 1330 --- Tara start of 1st pause
34006 08 Feb 2024 @ 1502 --- aferrara quit now
33306 21 Dec 2023 @ 1435 21 Dec 2023 @ 1450 TLH Went off 1435, back on 1444, back off 1450. Had to leave on snow coach.
28827 16 Oct 2023 @ 1815 --- DanS No Clepsydra pauses as of 1815 following Fountain.
28715 09 Oct 2023 @ 1215 --- Tara pausing, Spasm filling, probably a stall starting
28712 08 Oct 2023 @ 1800 --- SantaFe108 First pause after Fountain.
28710 08 Oct 2023 @ 1324 --- SantaFe108 First pause after Fountain.
28654 06 Oct 2023 @ 1045 --- bbev paused. back on weak at 1053
28625 04 Oct 2023 @ 1455 04 Oct 2023 @ 1650 steve Clepsydra is shutting on and off.
28554 29 Sep 2023 @ 1439 --- imapayne0213 Vent in front of Clepsydra began erupting around 1439 and Clepsydra was no longer pausing. Didn't get exact time.
28532 28 Sep 2023 @ 1502 28 Sep 2023 @ 1712 Graham Sloppy play. Mostly, front vent bursts with occasional center vent joining in, plus occasional stops. Continuing for about 2h.
28531 28 Sep 2023 @ 1246 --- Graham Paused 13m after Fountain quit.
28530 28 Sep 2023 @ 0815 --- Graham Paused 13m after Fountain quit.
28500 26 Sep 2023 @ 2150 26 Sep 2023 @ 2155 Tara In pause mode as seen by moonlight from the road
28482 26 Sep 2023 @ 1437 --- Graham Paused 24m after Fountain quit.
28445 24 Sep 2023 @ 1520 --- Tara Still in pause mode after 1042 Fountain eruption
28431 23 Sep 2023 @ 1412 --- Graham Paused 11m after Fountain quit
28430 23 Sep 2023 @ 1005 --- Graham Paused 13m after Fountain quit
28417 22 Sep 2023 @ 1549 22 Sep 2023 @ 1623 ThomasR Continued pauses with Spasm ie and Jelly overflowing. Pool levels in Fountain and Morning high. Some bubbling in Morning's Thief. Twig ie, but ended before we left. Periodic, weak Jets throughout.
28415 22 Sep 2023 @ 1555 --- Art Still appeared to be in a pause as seen from road.
28414 22 Sep 2023 @ 1300 22 Sep 2023 @ 1310 ThomasR Periodically pausing with weak bursts in between as seen from road.
28412 22 Sep 2023 @ 1108 22 Sep 2023 @ 1111 ThomasR In pause. Did not stick around to wait for it to resume. Still paused at 1117 when checked from parking lot and 1126 as seen from road.
28348 19 Sep 2023 @ 1520 --- Graham Paused 17m after Fountain quit .
28347 19 Sep 2023 @ 1044 --- Graham Paused 13m after Fountain quit.
28309 17 Sep 2023 @ 1706 --- Graham Paused 15m after Fountain quit
28307 17 Sep 2023 @ 0750 --- Graham Paused 14m after Fountain quit.
28266 15 Sep 2023 @ 1610 --- Graham Paused 24m after Fountain quit.
28232 12 Sep 2023 @ 0817 --- Graham Paused 14m after Fountain quit.
28198 10 Sep 2023 @ 0758 --- Graham Paused 20m after Fountain quit
28152 09 Sep 2023 @ 0848 --- Tara Clepsydra was paused at this time per radio call
28121 08 Sep 2023 @ 1555 08 Sep 2023 @ 1605 Dave W Paused 13m after Fountain ended. Completely quiet for 7 minutes, then started splashes separated by several seconds at 1602. Continuous play resumed from at least 3 vents, but mot all vents at 1605.
28099 07 Sep 2023 @ 1640 07 Sep 2023 @ 1644 LynnS Was in a pause
28096 07 Sep 2023 @ 1629 --- steve Off. Post fountain?
28062 06 Sep 2023 @ 1632 --- Graham Paused 21m after Fountain quit.
28061 06 Sep 2023 @ 1056 --- Graham Paused 14m after Fountain quit.
28043 05 Sep 2023 @ 1815 05 Sep 2023 @ 1900 steve Clepsydra turning on and off.
27960 02 Sep 2023 @ 1919 --- SantaFe108 1st pause after Fountain ended.
27796 26 Aug 2023 @ 1555 --- Tara paused at this time
27785 25 Aug 2023 @ 2045 --- Tara in pause mode as seem from parking lot
27730 22 Aug 2023 @ 1612 --- LynnS Still in pause mode.
27687 19 Aug 2023 @ 1500 19 Aug 2023 @ 1530 LynnS Clepsydra erupting in pause mode with only 1-3 vents erupting, bursts separated by seconds, and individual “series of bursts” separated by minutes.
27686 19 Aug 2023 @ 0956 19 Aug 2023 @ 1427 LynnS Clepsydra was in pause mode during this time, turning on and off. Clepsydra turned off at 1427, stayed off during the remainder of Fountain’s eruption.
27671 18 Aug 2023 @ 0545 18 Aug 2023 @ 1331 LynnS Clepsydra is in pause mode.
27657 17 Aug 2023 @ 0650 --- LynnS Clepsydra is in a pause
27626 15 Aug 2023 @ 1826 --- steve From the parking lot clep is off but I didn’t stay around for more data.
27613 15 Aug 2023 @ 1400 --- steve Only two pauses as of 1400
27612 15 Aug 2023 @ 1342 15 Aug 2023 @ 1348 steve Off 1342, on 1348
27611 15 Aug 2023 @ 1332 15 Aug 2023 @ 1338 steve Off 1332, on 1338
27570 13 Aug 2023 @ 1724 --- minissa Has been very colicky since turned off but now seems to be erupting consistently again
27567 13 Aug 2023 @ 1656 --- minissa Off...
27561 13 Aug 2023 @ 1543 --- minissa Has continued from previous time, front vent is enormous, like larger than the middle/main vent. 3 vents now on, side pool empty
27541 12 Aug 2023 @ 0645 12 Aug 2023 @ 0840 LynnS In pause mode
27533 11 Aug 2023 @ 0627 11 Aug 2023 @ 0924 LynnS Was in pause mode during this time
27493 10 Aug 2023 @ 0915 --- mtybumpo2 Ended at 9:28 am
27457 07 Aug 2023 @ 1400 --- LynnS Still in pause mode after Fountain’s 1139 eruption
27443 06 Aug 2023 @ 1009 --- LynnS Is not erupting.
27419 05 Aug 2023 @ 1050 --- LynnS Still in pause mode
27418 05 Aug 2023 @ 0745 --- LynnS Still in pause mode following the Fountain eruption that started at 0617
27393 02 Aug 2023 @ 1605 --- LynnS Still pausing when I left
27346 30 Jul 2023 @ 0652 30 Jul 2023 @ 1200 LynnS In pause mode. Started sometime after the end of the 0613ie eruption of Fountain. Clepsydra was off at 0652 when first observed.
27336 30 Jul 2023 @ 1030 --- deanl still pausing
27264 27 Jul 2023 @ 1355 --- LynnS Still in pause mode.
EntrySourceLinkComment
03 Jun 2017 @ 1100 JSJ https://www.flickr.com/photos/jsjgeology/35373533035 Photo of Clepsydra Geyser erupting during the late morning of 3 June 2017.
Baseline does not exist.