Last Known Eruption
7h 39m ago

Latest Eruptions

Eruption DurationInterval
26 Jul 2021 @ 0654 wc19m
26 Jul 2021 @ 0635 wc17m
26 Jul 2021 @ 0618 wc16m
26 Jul 2021 @ 0602 ie wc1d 22h 13m
24 Jul 2021 @ 0749 ie wc1d 49m
23 Jul 2021 @ 0700 wc1d 20h 39m
21 Jul 2021 @ 102116h 16m
20 Jul 2021 @ 180517m
20 Jul 2021 @ 174818m
20 Jul 2021 @ 1730 ie1d 10h 14m
19 Jul 2021 @ 0716 wc11h 27m
18 Jul 2021 @ 194919m
18 Jul 2021 @ 19302d 4h 13m
16 Jul 2021 @ 15174d 8h 44m
12 Jul 2021 @ 0633 wc19m
12 Jul 2021 @ 0614 wc1d 9h 9m
10 Jul 2021 @ 2105 ie wc15h 14m
10 Jul 2021 @ 0551 wc1d 22h 18m
08 Jul 2021 @ 0733 ie wc56m
08 Jul 2021 @ 0637 wc49m
08 Jul 2021 @ 0548 ie wc22h 59m
07 Jul 2021 @ 0649 ns wc34m
07 Jul 2021 @ 0615 wc22h 18m
06 Jul 2021 @ 0757 ie wc35m
06 Jul 2021 @ 0722 ie wc3d 15m
03 Jul 2021 @ 0707 ie wc1d 23h 2m
01 Jul 2021 @ 0805 wc2h 24m
01 Jul 2021 @ 0541 wc1d 22h 36m
29 Jun 2021 @ 070517m
29 Jun 2021 @ 0648 ie wc22h 36m
28 Jun 2021 @ 0812 ie wc54m
28 Jun 2021 @ 0718 ie wc18m
28 Jun 2021 @ 0700 ie wc15h 15m
27 Jun 2021 @ 15451d 6h 38m
26 Jun 2021 @ 09073h 10m
26 Jun 2021 @ 0557 ie15h 37m
25 Jun 2021 @ 1420 ie5h 36m
25 Jun 2021 @ 0844 ie36m
25 Jun 2021 @ 0808 ie wc35m
25 Jun 2021 @ 0733 ie wc14h 1m
24 Jun 2021 @ 1732 ie1d 11h 0m
23 Jun 2021 @ 0632 ie20m
23 Jun 2021 @ 061216m
23 Jun 2021 @ 0556 ie13h 48m
22 Jun 2021 @ 1608 ie8h 16m
22 Jun 2021 @ 0752 ns wc22h 58m
21 Jun 2021 @ 0854 ie1h 10m
21 Jun 2021 @ 0744 ie3m
21 Jun 2021 @ 0741 ie wc2h 2m
21 Jun 2021 @ 0539 ie13h 11m
20 Jun 2021 @ 1628 ie8h 30m
20 Jun 2021 @ 0758 ie wc18m
20 Jun 2021 @ 0740 wc32m
20 Jun 2021 @ 0708 ie wc23h 22m
19 Jun 2021 @ 0746 ie wc36m
19 Jun 2021 @ 071017m
19 Jun 2021 @ 0653 ie16m
19 Jun 2021 @ 0637 ie22h 55m
18 Jun 2021 @ 0742 ns wc31m
18 Jun 2021 @ 0711 wc1h 14m
18 Jun 2021 @ 0557 wc20h 46m
17 Jun 2021 @ 0911 ie1h 41m
17 Jun 2021 @ 0730 ie wc1h 15m
17 Jun 2021 @ 0615 ie wc17m
17 Jun 2021 @ 0558 ie wc51m
17 Jun 2021 @ 0507 ie wc31m
17 Jun 2021 @ 0436 wc20h 29m
16 Jun 2021 @ 0807 ie wc23h 27m
15 Jun 2021 @ 0840 ns wc1d 14h 35m
13 Jun 2021 @ 1805 ie1d 7h 13m
12 Jun 2021 @ 1052 ie17m
12 Jun 2021 @ 1035 ie36m
12 Jun 2021 @ 095917m
12 Jun 2021 @ 094218m
12 Jun 2021 @ 092418m
12 Jun 2021 @ 0906 ie17m
12 Jun 2021 @ 0849 ie19m
12 Jun 2021 @ 083017m
12 Jun 2021 @ 081318m
12 Jun 2021 @ 075517m
12 Jun 2021 @ 073818m
12 Jun 2021 @ 072018m
12 Jun 2021 @ 0702 ie18m
12 Jun 2021 @ 0644 ie19m
12 Jun 2021 @ 0625 wc9h 38m
11 Jun 2021 @ 2047 ie wc4m
11 Jun 2021 @ 2043 wc13h 30m
11 Jun 2021 @ 0713 ie wc1d 1h 50m
10 Jun 2021 @ 0523 wc1d 12h 54m
08 Jun 2021 @ 1629 ie1d 9h 52m
07 Jun 2021 @ 06371d 23h 31m
05 Jun 2021 @ 0706 ie wc17h 35m
04 Jun 2021 @ 1331 ie1h 31m
04 Jun 2021 @ 120019m
04 Jun 2021 @ 11412h 56m
04 Jun 2021 @ 0845 ns17m
04 Jun 2021 @ 0828 ns53m
04 Jun 2021 @ 0735 ie20m
04 Jun 2021 @ 071518m
04 Jun 2021 @ 065717m

Interval Statistics

Interval Count100
Min3m
Max4d 8h 44m
Mean12h 28m
Median1h 12m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
17837 15 Jun 2021 @ 1809 --- CrisG empty.
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
16763 30 Oct 1998 @ 1037 --- JarnoO surging, not actual erupt
16700 15 Aug 1998 @ 0836 --- JarnoO low pool
16688 15 Jul 1998 @ 0000 15 Jul 1998 @ 2359 JarnoO active
16687 14 Jul 1998 @ 0000 14 Jul 1998 @ 2359 JarnoO across from Arrowhead Spring: active all day
16646 26 May 1998 @ 0000 26 May 1998 @ 2359 JarnoO UNNG across from Arrowhead; active
16605 18 Mar 1998 @ 0000 18 Mar 1998 @ 2359 JarnoO UNNG below Inverted; active
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.