Last Known Eruption
7m ago

Latest Eruptions

Eruption DurationInterval
04 Jul 2020 @ 0601 ie wc21h 20m
03 Jul 2020 @ 0841 ie wc33m
03 Jul 2020 @ 0808 ie wc1h 39m
03 Jul 2020 @ 0629 ie wc16h 19m
02 Jul 2020 @ 1410 ie6h 6m
02 Jul 2020 @ 0804 ie wc18m
02 Jul 2020 @ 0746 ie wc17m
02 Jul 2020 @ 0729 wc17m
02 Jul 2020 @ 0712 wc16m
02 Jul 2020 @ 0656 ie wc21h 12m
01 Jul 2020 @ 0944 ie wc33m
01 Jul 2020 @ 091117m
01 Jul 2020 @ 0854 ie50m
01 Jul 2020 @ 0804 ie wc1h 6m
01 Jul 2020 @ 0658 ie wc1d 11h 49m
29 Jun 2020 @ 1909 ie wc32m
29 Jun 2020 @ 1837 ie wc1h 22m
29 Jun 2020 @ 1715 ie wc1h 57m
29 Jun 2020 @ 1518 ie17m
29 Jun 2020 @ 1501 ie1h 57m
29 Jun 2020 @ 1304 ie wc3h 6m
29 Jun 2020 @ 095813m
29 Jun 2020 @ 0945 ie22h 41m
28 Jun 2020 @ 1104 ie wc4d 4h 2m
24 Jun 2020 @ 0702 ie wc1d 12h 7m
22 Jun 2020 @ 1855 ie wc1d 12h 7m
21 Jun 2020 @ 0648 ie wc22h 35m
20 Jun 2020 @ 0813 ie wc18m
20 Jun 2020 @ 0755 ie wc1d 1h 41m
19 Jun 2020 @ 0614 ie wc1d 12h 12m
17 Jun 2020 @ 1802 ie wc22h 39m
16 Jun 2020 @ 1923 ie wc17m
16 Jun 2020 @ 1906 ie wc6h 48m
16 Jun 2020 @ 1218 ie wc22h 41m
15 Jun 2020 @ 1337 ie wc1d 17h 3m
13 Jun 2020 @ 2034 ie wc1h 27m
13 Jun 2020 @ 1907 ie wc3h 46m
13 Jun 2020 @ 1521 ie1h 8m
13 Jun 2020 @ 1413 ie wc6h 34m
13 Jun 2020 @ 073916m
13 Jun 2020 @ 0723 ns2d 19h 17m
10 Jun 2020 @ 1206 ie wc1d 18h 31m
08 Jun 2020 @ 1735 ie wc7h 30m
08 Jun 2020 @ 1005 ie1d 1h 43m
07 Jun 2020 @ 0822 ie wc17m
07 Jun 2020 @ 0805 ie wc1h 48m
07 Jun 2020 @ 0617 ie wc23h 6m
06 Jun 2020 @ 0711 ie wc1h 25m
06 Jun 2020 @ 0546 ie wc2d 22h 48m
03 Jun 2020 @ 0658 ie wc2d 23h 40m
31 May 2020 @ 0718 ie wc13h 19m
30 May 2020 @ 1759 ie wc9h 45m
30 May 2020 @ 0814 ie wc53m
30 May 2020 @ 0721 ie wc18h 54m
29 May 2020 @ 1227 ie wc3h 24m
29 May 2020 @ 0903 ie wc33m
29 May 2020 @ 0830 ie wc2h 53m
29 May 2020 @ 0537 ie wc21h 24m
28 May 2020 @ 0813 ie wc21h 46m
27 May 2020 @ 1027 ie wc3h 28m
27 May 2020 @ 0659 ie wc19h 55m
26 May 2020 @ 1104 ie4h 21m
26 May 2020 @ 0643 ie wc17h 2m
25 May 2020 @ 1341 ie wc1h 27m
25 May 2020 @ 1214 ie wc22h 42m
24 May 2020 @ 1332 ie wc53m
24 May 2020 @ 1239 ie wc2h 22m
24 May 2020 @ 1017 ie wc3h 14m
24 May 2020 @ 0703 ie wc1d 16h 50m
22 May 2020 @ 1413 ie wc1h 46m
22 May 2020 @ 1227 ie wc20m
22 May 2020 @ 1207 ie wc16h 8m
21 May 2020 @ 1959 ie wc8h 50m
21 May 2020 @ 1109 ie wc4h 19m
21 May 2020 @ 0650 ie wc33m
21 May 2020 @ 0617 ie wc37m
21 May 2020 @ 0540 ie wc22h 6m
20 May 2020 @ 0734 ie wc15h 3m
19 May 2020 @ 163120h 43m
18 May 2020 @ 1948 ie wc12h 31m
18 May 2020 @ 0717 ie wc36m
18 May 2020 @ 0641 ie wc1d 21h 58m
16 May 2020 @ 0843 ie wc2h 49m
16 May 2020 @ 0554 ie wc9h 55m
15 May 2020 @ 1959 ie wc32m
15 May 2020 @ 1927 ie wc3h 8m
15 May 2020 @ 1619 ie wc7h 6m
15 May 2020 @ 0913 ie wc1h 59m
15 May 2020 @ 0714 ie wc14h 20m
14 May 2020 @ 1654 ie wc3h 20m
14 May 2020 @ 1334 ie wc1h 7m
14 May 2020 @ 1227 ie wc1h 40m
14 May 2020 @ 1047 ie wc15h 26m
13 May 2020 @ 1921 ie wc3h 7m
13 May 2020 @ 1614 ie wc22h 8m
12 May 2020 @ 1806 ie wc22h 14m
11 May 2020 @ 1952 wc7h 26m
11 May 2020 @ 1226 ie wc2h 52m
11 May 2020 @ 0934 ie wc1d 16h 58m
09 May 2020 @ 1636 ie wc8h 27m

Interval Statistics

Interval Count100
Min13m
Max4d 4h 2m
Mean13h 25m
Median4h 20m

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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