Last Known Eruption
22h 32m ago

Latest Eruptions

Eruption DurationInterval
27 Mar 2020 @ 1117 ie wc17h 1m
26 Mar 2020 @ 1816 ie wc3d 10h 36m
23 Mar 2020 @ 0740 ie wc1d 22h 17m
21 Mar 2020 @ 0923 wc8d 15h 12m
12 Mar 2020 @ 1811 ie wc26d 2h 44m
15 Feb 2020 @ 142715m
15 Feb 2020 @ 1412 ie6d 20h 7m
08 Feb 2020 @ 1805 ie wc1h 24m
08 Feb 2020 @ 1641 ie wc8d 5h 23m
31 Jan 2020 @ 1118 ie wc7d 1h 29m
24 Jan 2020 @ 0949 ie wc1d 1h 51m
23 Jan 2020 @ 075817m
23 Jan 2020 @ 074114h 24m
22 Jan 2020 @ 1717 ie16m
22 Jan 2020 @ 1701 ie17m
22 Jan 2020 @ 164416m
22 Jan 2020 @ 1628 ie5h 1m
22 Jan 2020 @ 1127 ie17m
22 Jan 2020 @ 111017m
22 Jan 2020 @ 105317m
22 Jan 2020 @ 103616m
22 Jan 2020 @ 102017m
22 Jan 2020 @ 100317m
22 Jan 2020 @ 094615m
22 Jan 2020 @ 0931 ie18m
22 Jan 2020 @ 0913 ie1h 5m
22 Jan 2020 @ 0808 ie2d 17h 47m
19 Jan 2020 @ 1421 ie23d 22h 5m
26 Dec 2019 @ 1616 wc7d 8h 28m
19 Dec 2019 @ 0748 wc3d 21m
16 Dec 2019 @ 0727 ie wc3d 21h 30m
12 Dec 2019 @ 0957 ie35m
12 Dec 2019 @ 09221d 18h 16m
10 Dec 2019 @ 1506 wc20d 6h 53m
20 Nov 2019 @ 0813 ie wc23h 8m
19 Nov 2019 @ 0905 ie wc2d 23h 40m
16 Nov 2019 @ 0925 wc19h 46m
15 Nov 2019 @ 1339 ie wc4d 1h 42m
11 Nov 2019 @ 11571d 20h 6m
09 Nov 2019 @ 1551 ie wc32m
09 Nov 2019 @ 1519 ie wc2h 12m
09 Nov 2019 @ 1307 ie wc1d 2h 52m
08 Nov 2019 @ 1015 ie wc1d 17h 37m
06 Nov 2019 @ 1638 ie wc3d 23h 48m
02 Nov 2019 @ 1750 ie wc1h 57m
02 Nov 2019 @ 1553 ie wc52m
02 Nov 2019 @ 1501 ie wc1h 38m
02 Nov 2019 @ 1323 ie wc1d 21h 53m
31 Oct 2019 @ 153017m
31 Oct 2019 @ 151316m
31 Oct 2019 @ 1457 ie18m
31 Oct 2019 @ 14393d 23h 11m
27 Oct 2019 @ 1528 ie wc2h 34m
27 Oct 2019 @ 1254 ie18h 5m
26 Oct 2019 @ 1849 ie wc34m
26 Oct 2019 @ 1815 ie wc20m
26 Oct 2019 @ 1755 ie wc34m
26 Oct 2019 @ 1721 ie wc3d 16m
23 Oct 2019 @ 1705 ie wc2h 12m
23 Oct 2019 @ 1453 ie1d 23h 8m
21 Oct 2019 @ 154516m
21 Oct 2019 @ 1529 ie19m
21 Oct 2019 @ 1510 ie16m
21 Oct 2019 @ 1454 ie35m
21 Oct 2019 @ 141915m
21 Oct 2019 @ 1404 ie3d 38m
18 Oct 2019 @ 1326 ie wc14d 2h 12m
04 Oct 2019 @ 1114 ie wc2d 15h 36m
01 Oct 2019 @ 1938 ie wc1d 31m
30 Sep 2019 @ 1907 ie wc1d 9h 15m
29 Sep 2019 @ 095233m
29 Sep 2019 @ 0919 ie1d 23h 37m
27 Sep 2019 @ 09426d 19h 7m
20 Sep 2019 @ 1435 ie wc3h 56m
20 Sep 2019 @ 1039 ie wc4d 15h 23m
15 Sep 2019 @ 1916 ie3d 8h 9m
12 Sep 2019 @ 11076d 21m
06 Sep 2019 @ 1046 ie wc1d 16h 3m
04 Sep 2019 @ 184315m
04 Sep 2019 @ 1828 ie1d 3h 50m
03 Sep 2019 @ 14383h 17m
03 Sep 2019 @ 1121 ie3h 16m
03 Sep 2019 @ 0805 ie4d 14h 5m
29 Aug 2019 @ 180017m
29 Aug 2019 @ 17431d 21h 58m
27 Aug 2019 @ 1945 ie wc6d 12h 10m
21 Aug 2019 @ 0735 ie wc11h 35m
20 Aug 2019 @ 2000 ie wc6d 12h 13m
14 Aug 2019 @ 0747 ie wc11h 34m
13 Aug 2019 @ 2013 wc34m
13 Aug 2019 @ 1939 ie wc3d 6h 2m
10 Aug 2019 @ 1337 wc21h 21m
09 Aug 2019 @ 1616 ie6h 12m
09 Aug 2019 @ 1004 ie wc3d 3h 47m
06 Aug 2019 @ 0617 ie18h 50m
05 Aug 2019 @ 1127 ie18m
05 Aug 2019 @ 1109 ie3h 42m
05 Aug 2019 @ 0727 wc1d 19h 49m
03 Aug 2019 @ 11381d 19h 30m
01 Aug 2019 @ 1608 ie wc19h 44m

Interval Statistics

Interval Count100
Min15m
Max26d 2h 44m
Mean2d 9h 30m
Median18h 27m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
12906 31 Jul 2019 @ 1935 31 Jul 2019 @ 2024 JSJ Closed intervals for posted eruptions. Unlike previous years, no fill and drain cycles. Water level never visible.
11727 11 Jun 2019 @ 1638 --- CrisG Crater empty
11696 10 Jun 2019 @ 1002 --- CrisG empty crater
11656 08 Jun 2019 @ 1513 --- CrisG empty.
11528 02 Jun 2019 @ 0932 --- Janet Jones The wash from Marmot Cave cleared gravel fro the solid sinter base all the way under the boardwalk and down to the Dwarfs. I didn’t get a chance to sit and wait for an eruption, but that wash wasn’t there a couple weeks ago as far as I recall.
10902 24 Jan 2019 @ 0718 --- Graham Runoff channel snowed in
10897 23 Jan 2019 @ 0725 --- Graham No eruption recently. snow in runoff channel
10645 21 Oct 2018 @ 1132 --- rbwhitaker Water came up, small boiling, rocking pool, then dropped. No eruption. No bursts, anyway.
10440 25 Sep 2018 @ 1114 --- Micah Kipple Fill. Strong boil. Drain. No eruption.
10439 25 Sep 2018 @ 1103 --- Micah Kipple Fill. Boil. Drain. No eruption.
10381 19 Sep 2018 @ 1022 --- Siegmund Empty. Still empty 1104.
10246 16 Sep 2018 @ 0704 --- steve Rocking and overflowing followed by a drop but no splashing
10144 11 Sep 2018 @ 1043 --- Tara Water came up with pulsing overflow and bubbles for about 1 minute and then dropped.
10154 11 Sep 2018 @ 0905 --- Barbara Lasseter no visible water
10025 04 Sep 2018 @ 1629 --- Janet Jones 1629 - water rise. Sloshing and bouncing duriing a slower rise. 1630 - overflow with boilong but mo eruption. 1631 - drain.
10012 03 Sep 2018 @ 1429 --- Micah Kipple Heavy surge to 10" but no bursting. Maybe an eruption?
9530 07 Aug 2018 @ 1440 07 Aug 2018 @ 1443 JSJ Water rising at 1440. Pool pulsing with overflow, etc. No eruption. Water drained out-of-sight at 1443.
9529 07 Aug 2018 @ 1419 07 Aug 2018 @ 1422 JSJ Water rising at late 1419. Pool pulsing, overflow, light roiling. No eruption. Water drained out-of-sight at late 1421 to early 1422.
9528 07 Aug 2018 @ 1348 07 Aug 2018 @ 1400 JSJ Cycles involving rising water, pool pulsing with overflow, bubbling and low roiling, then water lowering out of sight: 1348 to 1350 (no eruption), 1359 to 1400 (no eruption). Closed interval for cycles: 11m.
9527 07 Aug 2018 @ 1151 07 Aug 2018 @ 1253 JSJ Cycles involving rising water, pool pulsing with overflow, bubbling and low roiling, then water lowering out of sight: 1151 to 1153, 1203 to 1205, 1213 to 1216, 1226 to 1228, 1239 to 1242, 1251 to 1253. Closed intervals for cycles: 12m, 10m, 13m, 13m, 12m.
9476 05 Aug 2018 @ 1458 --- Tara Pulsing, bubbling, and overflowing in progress. Water level dropped out of sight at 1459.
9362 01 Aug 2018 @ 0805 --- Barbara Lasseter crater empty
9345 31 Jul 2018 @ 1609 --- jazzknick Fluctuating overflow and rocking followed by drain. Small bubbling st front edge
9282 24 Jul 2018 @ 1607 --- WillBoekel empty.
8956 30 Jun 2018 @ 1623 --- Tara Bubbling with pulsing overflow.
8904 27 Jun 2018 @ 1249 27 Jun 2018 @ 1311 Tara Down about 3 inches at 1249, full at 1311.
8717 16 Jun 2018 @ 1125 --- CrisG full and overflowing
8656 13 Jun 2018 @ 1431 13 Jun 2018 @ 1433 Tara Pulsating and overflowing in progress at 1431, water level dropped out of sight at 1433.
8655 13 Jun 2018 @ 1359 --- Tara Crater empty.
8470 05 Jun 2018 @ 1915 --- underarockphoto Overflow reached.
8099 04 May 2018 @ 1144 --- Janet Jones No microbes growing in the overflow channel or in the vent. Water level at 3-4" below overflow.
3384 28 Jul 2016 @ 1027 --- WillBoekel empty. no water visible
3241 07 Jul 2016 @ 1306 --- udo drained
2909 28 May 2016 @ 1550 --- WillBoekel down 1 inch
2773 22 Apr 2016 @ 1006 --- WillBoekel down about 4 inches
2135 16 Aug 2015 @ 1010 16 Aug 2015 @ 1053 JSJ Full & slightly pulsing at 1010. Stronger pulsing with overflow from 1012 to 1016. Drain at 1016. Noticed it was full at 1053.
2072 09 Aug 2015 @ 1001 --- JSJ Pool full.
1996 31 Jul 2015 @ 1027 --- Tara pulsing and bubbling in progress
1987 29 Jul 2015 @ 1319 --- Tara Pulsing and bubbling with overflow. I saw it in progress and it lasted only a few more seconds before the water level dropped nearly out of sight.
1917 16 Jul 2015 @ 1956 --- Jake empty.
1862 07 Jul 2015 @ 1512 --- Micah Kipple Empty.
1785 23 Jun 2015 @ 1913 --- bhoppe empty at 1913
1777 22 Jun 2015 @ 1921 --- WillBoekel about 3 inches below overflow
1773 21 Jun 2015 @ 1130 --- udo Pulsed for several minutes and drained at 1130
1759 18 Jun 2015 @ 1632 --- WillBoekel empty.
1746 16 Jun 2015 @ 1314 --- bhoppe empty at 1314
1737 14 Jun 2015 @ 1140 --- WillBoekel half full
1736 14 Jun 2015 @ 0921 --- WillBoekel empty.
1697 07 Jun 2015 @ 1639 --- WillBoekel empty.
1206 03 Jun 2014 @ 1219 03 Jun 2014 @ 1220 JSJ Marmot Cave Geyser's vent was filled with water & was bouncing slightly at 1219 on 3 June 2014.  The pool completely drained at 1220.
1059 03 May 2014 @ 2049 --- WillBoekel 2049 resume overflow
1057 03 May 2014 @ 2020 --- WillBoekel At 2020 water was ~3-4 inches below overflow
1056 02 May 2014 @ 1529 --- WillBoekel Drained at 1529 water seen refilling at 1530 and possible suds on the pool upon refill
761 04 Jun 2011 @ 1422 --- Janet Jones Marmot Cave Geyser\r\n1420 - water level dropped below overflow.\r\n1422 - pulsing, still below overflow.\r\n1426 - water level back to overflow \r\n1428 - left the area
EntrySourceLinkComment
07 Aug 2018 @ 1339 JSJ https://www.youtube.com/watch?v=QQIW13aaXSw#t=12m38s Clip 23 of this video compilation (time stamp 12:38 to 14:23) shows Marmot Cave Geyser's 1:39 to 1:40 PM eruption on 7 August 2018 during a fill-and-drain cycle.
07 Aug 2018 @ 1330 JSJ https://www.youtube.com/watch?v=QQIW13aaXSw#t=10m42s Clip 22 of this video compilation (time stamp 10:42 to 12:38) shows Marmot Cave Geyser's 1:30 to 1:32 PM eruption on 7 August 2018 during a fill-and-drain cycle.
07 Aug 2018 @ 1322 JSJ https://www.youtube.com/watch?v=QQIW13aaXSw#t=8m29s Clip 21 of this video compilation (time stamp 8:29 to 10:42) shows Marmot Cave Geyser's 1:22 to 1:23 PM eruption on 7 August 2018 during a fill-and-drain cycle.
07 Aug 2018 @ 1303 JSJ https://www.youtube.com/watch?v=QQIW13aaXSw#t=7m30s Clip 20 of this video compilation (time stamp 7:30 to 8:29) shows Marmot Cave Geyser's 1:03 PM eruption on 7 August 2018 during a fill-and-drain cycle.
Baseline does not exist.


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