Last Known Eruption
24d 23h 37m ago

Latest Eruptions

Eruption DurationInterval
10 Oct 2024 @ 16119m
10 Oct 2024 @ 160273d 22h 40m
06 Oct 2024 @ 17225m 1d 7h 35m
05 Oct 2024 @ 0947 maj21h 7m
04 Oct 2024 @ 1240 ie maj11h 33m
04 Oct 2024 @ 0107 maj9h 17m
03 Oct 2024 @ 1550 ie maj1d 4h 17m
02 Oct 2024 @ 1133 ie maj1d 4h 47m
01 Oct 2024 @ 0646 ie maj>5h 31m 13h 23m
30 Sep 2024 @ 1723 ie maj7h 22m
30 Sep 2024 @ 1001 ie maj22h 7m
29 Sep 2024 @ 1154 ie maj16h 25m
28 Sep 2024 @ 19294m 17m
28 Sep 2024 @ 19127m 13m
28 Sep 2024 @ 18594m 10m
28 Sep 2024 @ 18493m 7h 2m
28 Sep 2024 @ 1147 maj14m
28 Sep 2024 @ 11338m
28 Sep 2024 @ 112518h 12m
27 Sep 2024 @ 17135h 19m
27 Sep 2024 @ 1154 ie maj>5h 54m
27 Sep 2024 @ 0600 ie maj19h 50m
26 Sep 2024 @ 1010 ie maj>7h 54m 20h 28m
25 Sep 2024 @ 1342 ie maj5h 16m
25 Sep 2024 @ 0826 ie maj16h 48m
24 Sep 2024 @ 1538 maj2h 21m
24 Sep 2024 @ 1317 ie maj>2h 14m 7h 18m
24 Sep 2024 @ 0559 ie maj9h 25m
23 Sep 2024 @ 2034 maj14m
23 Sep 2024 @ 20205m 8m
23 Sep 2024 @ 20122m 4h 55m
23 Sep 2024 @ 1517 maj4h 1m
23 Sep 2024 @ 1116 ie maj2d 17h 18m
20 Sep 2024 @ 1758 ie maj11h 13m
20 Sep 2024 @ 0645 ie maj13h 40m
19 Sep 2024 @ 1705 maj8m
19 Sep 2024 @ 16573m 10m
19 Sep 2024 @ 16474m 11m
19 Sep 2024 @ 16364m 15m
19 Sep 2024 @ 16215m 13m
19 Sep 2024 @ 16084m 14m
19 Sep 2024 @ 15545m 12m
19 Sep 2024 @ 15424m 12m
19 Sep 2024 @ 15304m 8m
19 Sep 2024 @ 15223m 5h 57m
19 Sep 2024 @ 0925 ie maj>5h 41m 20h 28m
18 Sep 2024 @ 1257 maj10m
18 Sep 2024 @ 12477m 10m
18 Sep 2024 @ 12374m 6m
18 Sep 2024 @ 12313m 6m
18 Sep 2024 @ 12253m 6m
18 Sep 2024 @ 12193m 7m
18 Sep 2024 @ 12123m 6m
18 Sep 2024 @ 12063m 8m
18 Sep 2024 @ 11584m 6m
18 Sep 2024 @ 11523m 6m
18 Sep 2024 @ 11463m 7m
18 Sep 2024 @ 11393m 7m
18 Sep 2024 @ 11323m 5m
18 Sep 2024 @ 11273m 6m
18 Sep 2024 @ 11213m 6m
18 Sep 2024 @ 11153m 5m
18 Sep 2024 @ 11102m 7m
18 Sep 2024 @ 11033m 21h 49m
17 Sep 2024 @ 1314 ie maj5h 51m
17 Sep 2024 @ 0723 ie maj8h 45m
16 Sep 2024 @ 2238 ie maj10h 57m
16 Sep 2024 @ 1141 maj8m
16 Sep 2024 @ 11332m 3h 33m
16 Sep 2024 @ 0800 ie maj15h 45m
15 Sep 2024 @ 1615 maj13m
15 Sep 2024 @ 16024m 8m
15 Sep 2024 @ 15542m 10h 9m
15 Sep 2024 @ 0545 ie maj16h 41m
14 Sep 2024 @ 1304 maj9m
14 Sep 2024 @ 12552m 9h 9m
14 Sep 2024 @ 0346 ie maj8h 31m
13 Sep 2024 @ 191510h 41m
13 Sep 2024 @ 083410m
13 Sep 2024 @ 08242h 44m
13 Sep 2024 @ 0540 ie maj1d 19m
12 Sep 2024 @ 0521 maj13h 3m
11 Sep 2024 @ 16182m 7m
11 Sep 2024 @ 16112m 13m
11 Sep 2024 @ 15586m 11m
11 Sep 2024 @ 15474m 9m
11 Sep 2024 @ 15383m 5h 26m
11 Sep 2024 @ 1012 maj5h 21m 10m
11 Sep 2024 @ 10025m 7m
11 Sep 2024 @ 09553m 7m
11 Sep 2024 @ 09482m 18h 18m
10 Sep 2024 @ 1530 maj9m
10 Sep 2024 @ 15213m 4h 54m
10 Sep 2024 @ 1027 maj4h 47m 14m
10 Sep 2024 @ 10134m 9m
10 Sep 2024 @ 10043m 9h 41m
10 Sep 2024 @ 0023 ie maj6h 29m
09 Sep 2024 @ 17544h 47m
09 Sep 2024 @ 13078h 54m
09 Sep 2024 @ 0413 maj1h 13m

Interval Statistics

Interval Count100
Min5m
Max3d 22h 40m
Mean7h 34m
Median1h 47m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
37752 24 Oct 2024 @ 1255 24 Oct 2024 @ 1642 rayceanderson On steady prior to and during Fountain. Did not stay to see if it paused after Fountain.
37693 23 Oct 2024 @ 1348 --- DanS Loudly rumbling similar to Grotto start during erupting Fountain. Lasted until about 5 minutes after Fountain end. Water in vents looked normal.
37389 04 Oct 2024 @ 0052 --- Graham Pause in progress. Probably an aborted stall with the long pause, water high in Spasm and dropping, plus Jelly just below overflow. Fountain runoff wet and CSV full.
37233 28 Sep 2024 @ 1933 --- Graham 5th pause, going into a stall. Did not stay any longer.
37232 28 Sep 2024 @ 1842 --- Graham Paused after Fountain
37851 28 Sep 2024 @ 1138 --- Tara start of 3rd and final pause
37850 28 Sep 2024 @ 1128 --- Tara start of 2nd pause
37849 28 Sep 2024 @ 1120 --- Tara start of first pause
37197 27 Sep 2024 @ 1750 --- Tara looked to be on steady at this time as seen from road
37142 25 Sep 2024 @ 0745 --- TSBryan on steadily along with Spasm; Jet also active, water not visible in Fountain
37135 24 Sep 2024 @ 1531 --- Graham Paused 17m after Fountain quit
37127 23 Sep 2024 @ 1509 --- Graham Pauses 18m after Fountain quit.
37093 20 Sep 2024 @ 1618 --- Tara on steady as seen from road
37070 19 Sep 2024 @ 1516 --- Graham Paused 16m after Fountain quit
37017 17 Sep 2024 @ 0835 --- aferrara weakly starting and stopping, about an hour after fountain
37012 16 Sep 2024 @ 1125 --- Graham Paused 17m after Fountain quit
37003 16 Sep 2024 @ 0340 --- Graham Started a pause as I arrived at the Fountain group. Likely the first pause as Clep was on for a while I was walking over.
36993 15 Sep 2024 @ 1548 --- Graham Paused 17m after Fountain quit
36976 14 Sep 2024 @ 1247 --- Graham Paused 14m after Fountain quit.
36963 13 Sep 2024 @ 1907 --- Mikemcc ~7 min pause
36964 13 Sep 2024 @ 1857 --- Mikemcc ~5min pause
36962 13 Sep 2024 @ 1849 --- Mikemcc ~5 min pause
36946 13 Sep 2024 @ 0828 --- Kyle second Clepsydra pause post FTN
36945 13 Sep 2024 @ 0818 --- Kyle first pause after FTN
36944 13 Sep 2024 @ 0812 --- Kyle Clepsydra
36919 12 Sep 2024 @ 0514 --- Graham Paused and drained
36912 11 Sep 2024 @ 1620 --- Graham In stall mode. Did not stay.
36910 11 Sep 2024 @ 1533 --- Graham Paused 16m after Fountain quit.
36907 11 Sep 2024 @ 0947 --- Graham In a long stall.
36915 11 Sep 2024 @ 0825 --- Micah Kipple Sloppy Play. In "Stall mode"
36888 10 Sep 2024 @ 1514 --- Graham Paused 14m after Fountain quit
36887 10 Sep 2024 @ 0958 --- Graham Paused 14m after Fountain quit
36876 09 Sep 2024 @ 1748 --- Kyle paused after Fountain
36868 09 Sep 2024 @ 1300 --- Kyle paused for 6 min 22 sec
36858 09 Sep 2024 @ 0222 --- Graham Not ie. Spasm and Jelly high and not overflowing. Jet quiet. Small amount of wet in Jellys near runoff channel. nay not have been an eruption though. First splashes at 0254.
36847 08 Sep 2024 @ 1206 --- Graham Paused 16m after Fountain quit
36840 07 Sep 2024 @ 1820 --- Graham Front vent splashing a out a minute then stopping for a minute. Other vents not joining in.
36838 07 Sep 2024 @ 1736 --- Graham Not ie. Front vent drained and splashing from depth. Spasm, Jelly, CSV, Fountain empty. Spasm boiling at depth.
36836 07 Sep 2024 @ 1648 07 Sep 2024 @ 1652 Tara paused during this time as seen from the road.
36832 07 Sep 2024 @ 1420 --- Graham noisy steam vent active.
36770 05 Sep 2024 @ 0937 --- steve Off, back on 0943
36721 03 Sep 2024 @ 1214 --- CP On steady
36691 02 Sep 2024 @ 0845 --- Tara approximate time, off as seen from parking lot
36597 28 Aug 2024 @ 1030 --- Scott H on strong
36556 26 Aug 2024 @ 1800 --- Kyle second pause post Fountain
36555 26 Aug 2024 @ 1754 --- Kyle first pause post Fountain
36545 25 Aug 2024 @ 1550 25 Aug 2024 @ 1610 Scott H Clep off and on. Spasm erupting
36515 22 Aug 2024 @ 1847 --- Kyle 2nd pause following FTN
36514 22 Aug 2024 @ 1839 --- Kyle Clepsydra pause following FTN
36439 17 Aug 2024 @ 1713 17 Aug 2024 @ 1719 LynnS Paused at this time; short, weak pause mode; front vent erupting sporadically
36418 15 Aug 2024 @ 1130 15 Aug 2024 @ 1154 LynnS Clepsydra turning on and off during this time. Start time of pauses unknown.
36255 03 Aug 2024 @ 2014 --- SantaFe108 2nd pause after Fountain, left after this.
36254 03 Aug 2024 @ 2005 --- SantaFe108 1st pause after Fountain.
36199 01 Aug 2024 @ 0802 --- Polly From the road, Clepsydra appeared to be on weakly.
36176 30 Jul 2024 @ 1115 --- skubba22 All vents off/paused at 11:15, restarted 11:18, paused again 11:27
36177 30 Jul 2024 @ 1044 --- skubba22 Very loud thumping sound coming from Clepsydra during Fountain eruption @10:34, thumping began in the middle of the eruption. Vents were on
35995 20 Jul 2024 @ 0930 --- Tara In short pause stall mode, pauses lasting about 2 minutes with sloppy restarts.
35953 18 Jul 2024 @ 0800 --- mhreed Not in eruption.
35826 10 Jul 2024 @ 1447 --- deanl off now -14:47 - though it continued after Fountain. Tried to restart a few times, failing until on @ 1458. Off 1502, atempt 1509, on 1511. Still on 1525.
35741 06 Jul 2024 @ 0740 --- Polly Only wispy steam near Fountain as I drove by.
35667 01 Jul 2024 @ 1709 --- K.Cooper on strong
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
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.