Last Known Eruption
15d 17h 10m ago

Latest Eruptions

Eruption DurationInterval
05 May 2024 @ 1523 ie1d 3h 38m
04 May 2024 @ 1145 ie43d 30m
22 Mar 2024 @ 1115 ie wc2d 3h 51m
20 Mar 2024 @ 0724 ie wc124d 21h 58m
16 Nov 2023 @ 0826 ie wc13d 17m
03 Nov 2023 @ 0909 ie wc16d 17h 26m
17 Oct 2023 @ 1543 ie wc43d 6h 32m
04 Sep 2023 @ 0911 ie wc7d 22h 52m
27 Aug 2023 @ 1019 ie3d 14h 26m
23 Aug 2023 @ 1953 ie wc46d 5h 58m
08 Jul 2023 @ 1355 ie55d 3h 17m
14 May 2023 @ 1038 ie1h 26m
14 May 2023 @ 0912 ie wc4d 23h 28m
09 May 2023 @ 0944 ie1h 0m
09 May 2023 @ 0844 ie wc56d 14h 42m
13 Mar 2023 @ 1802 ie wc2m
13 Mar 2023 @ 1800 ie wc36d 3h 3m
05 Feb 2023 @ 1357 ie wc238d 20h 55m
11 Jun 2022 @ 1802 wc17d 9h 26m
25 May 2022 @ 0836 ie wc1h 36m
25 May 2022 @ 0700 ie wc123d 17h 58m
21 Jan 2022 @ 1202 ie wc44d 2h 5m
08 Dec 2021 @ 0957 wc2h 26m
08 Dec 2021 @ 0731 ie wc5d 22h 14m
02 Dec 2021 @ 0917 ie wc6d 1h 38m
26 Nov 2021 @ 0739 ie wc9d 22h 55m
16 Nov 2021 @ 0844 ie wc3d 6m
13 Nov 2021 @ 0838 ie wc8m
13 Nov 2021 @ 0830 ie wc1h 6m
13 Nov 2021 @ 0724 ie wc14d 20h 21m
29 Oct 2021 @ 1203 ie wc1h 34m
29 Oct 2021 @ 1029 ie wc357d 1h 54m
06 Nov 2020 @ 0735 wc71d 15h 40m
26 Aug 2020 @ 1655314d 1h 42m
17 Oct 2019 @ 1513 ie wc296d 4h 18m
25 Dec 2018 @ 0955 ie2y 48d 23h 41m
06 Nov 2016 @ 1014 ie292d 20h 52m
18 Jan 2016 @ 1322 ie231d 3h 56m
01 Jun 2015 @ 1026 ie3y 12d 2h 40m
20 May 2012 @ 0746 ie14y 228d 10h 11m
07 Oct 1997 @ 2135 ie6d 5h 48m
01 Oct 1997 @ 1547 ie16d 5h 0m
15 Sep 1997 @ 1047 ie3d 19h 12m
11 Sep 1997 @ 1535 ie2y 109d 18h 0m
25 May 1995 @ 2135 ie119d 10h 26m
26 Jan 1995 @ 10094m
26 Jan 1995 @ 10051y 251d 15h 5m
19 May 1993 @ 2000 ie221d 9h 35m
10 Oct 1992 @ 1025 ie

Interval Statistics

Interval Count48
Min2m
Max14y 228d 10h 11m
Mean240d 5h 6m
Median17d 1h 26m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
33888 19 Jan 2024 @ 1730 --- K.Cooper high water level
33847 17 Jan 2024 @ 1545 --- K.Cooper splashing and loud
33793 15 Jan 2024 @ 0729 --- K.Cooper low and steamy
28805 15 Oct 2023 @ 1104 --- SantaFe108 Pool level low and boiling.
28674 07 Oct 2023 @ 1425 --- steve Occasionally boiling to 3 feet while Little Squirt is ie.
28573 30 Sep 2023 @ 0855 --- Brian water level a little below underside of upper rim
28421 23 Sep 2023 @ 0850 --- Brian water back up to bottom of upper rim
28345 19 Sep 2023 @ 1425 --- Brian water level high, 2" below top rim
27942 02 Sep 2023 @ 1522 --- SantaFe108 ~8 inches below rim with occasional small boil.
27805 26 Aug 2023 @ 1037 --- Kyle approx 4 inches below rim with boiling (ie relatively high)
27682 19 Aug 2023 @ 1011 --- Tara water level down and out of sight, audible boiling
27608 15 Aug 2023 @ 0915 --- Tara water level down and out of sight
27473 09 Aug 2023 @ 0928 --- Tara water level not visible from boardwalk, occasional visible splashes
26805 03 Jul 2023 @ 1032 --- Kyle approx 4 cm below rim with constant boiling along south rim
26307 14 Jun 2023 @ 1855 --- Tara water level down ~8" from rim, vigorous boiling on south end of pool sometimes doming 4-6".
26077 06 Jun 2023 @ 1008 --- SantaFe108 Water level out of sight.
26004 04 Jun 2023 @ 0914 --- SantaFe108 Water level out-of-sight and quiet.
25980 03 Jun 2023 @ 1503 --- Tara water level down and out of sight, audible boiling
25767 24 May 2023 @ 1933 --- Tara down 4-5" with light boil
25569 20 May 2023 @ 0945 --- Tara water level out of sight, audible light boiling
25505 17 May 2023 @ 2024 --- Tara Water level ~2-3" below rim, steady bubbling on west side.
25369 09 May 2023 @ 1000 09 May 2023 @ 1055 Tara Water level out of sight, a rough guess would be that it's about 1.5 feet below the rim at its lowest. Appeared to be fluctuating up and down with boils at the peaks every 1-2 minutes. The boils varied in height but never reached above the rim during my observation. I saw water 1-2 feet above the rim from the OFI parking lot at 0944; due to the more sustained nature of that activity I think it was an eruption but I didn't catch it in the act from up close.
25305 30 Apr 2023 @ 1935 --- SantaFe108 Water level was out-of-sight at 1420. Now it is ~6 inches below the rim and gurgling.
25096 12 Mar 2023 @ 1315 --- Janet Jones Gently steaming. Looked post-eruptive by some hours - no water seen in person or in photos taken.
21861 09 Jun 2022 @ 0911 --- SantaFe108 Boiling and down about 2 inches from the rim.
21456 24 May 2022 @ 0701 --- Micah Kipple Within 2 inches of the rim and boiling.
17058 12 May 2021 @ 1037 --- Micah Kipple Within 6 inches of the rim and boiling. I'd be watching for Little Squirt.
14589 11 Jun 2020 @ 0749 --- K.Cooper 6 inches below overflow, strong boiling
14238 26 May 2020 @ 1052 --- Janet Jones Water level is still in sight with nice boils up to a foot high that don’t clear the rim top. Little Squirt ie and “Pygmy” is noisily sputtering and steaming.
14218 19 May 2020 @ 1312 --- Janet Jones Silver Spring's water level rose since yesterday to about an inch below the back catch basin. No boiling seen.
14201 18 May 2020 @ 1437 --- Janet Jones Water was visible with boiling, but water level was about 8" below the "back catch basin." Little Squirt was dry.
14168 10 Apr 2020 @ 0936 --- CraigC Steam seemed to be significantly heavier than observed previously. It was intermittent between heavy and what I would consider regular. No vertical water was observed, but visibility was not ideal. This activity was observed for about 30 minutes on the webcam.
13955 17 Oct 2019 @ 1440 --- JarnoO Ever since around the time Little Squirt was first observed, I've been seeing intermittent bursts of steam lasting about <=1m occurring from Silver Spring at a frequency of about once every 2-5 minutes or so. Never saw any water, but I think it might be actual eruptive activity which never makes it out of the crater.
10679 29 Oct 2018 @ 1232 --- udo superheated edge boil and doming to 4 inches on far side of pool
10284 18 Sep 2018 @ 1125 --- Micah Kipple Periodic heavy boils above ground level.
10003 03 Sep 2018 @ 0900 --- Micah Kipple Within a foot of the rim.
9258 21 Jul 2018 @ 0752 --- Micah Kipple Within 15 cm of rim.
8844 20 Jun 2018 @ 1328 --- mhreed At overflow.
8807 20 Jun 2018 @ 0741 --- mhreed ~2 inches below overflow. Gently pulsing.
8109 04 May 2018 @ 1126 --- Janet Jones Water 3-4" from top of the rim. Water in the back "catch basin" (for lack of a better term).
8071 03 May 2018 @ 1649 --- Micah Kipple Within 10 cm of the rim.
4059 05 May 2017 @ 1620 --- Janet Jones While Little Squirt was still erupting, Silver Spring didn't drain and erupt. Instead, the water level had dropped to about 4-6" below the rim top and was occasionally splashing from the center of the pool.
4058 05 May 2017 @ 1140 --- Janet Jones Water overflowing the crater including overflowing from back catch basin.
3993 22 Apr 2017 @ 1302 --- Micah Kipple Outer basins filled
3991 22 Apr 2017 @ 1027 --- Micah Kipple Water level near rimtop
3864 06 Nov 2016 @ 1010 --- Janet Jones Empty and steaming
3849 05 Nov 2016 @ 1328 --- mhreed Inch below overflow.
2822 06 May 2016 @ 1319 --- Janet Jones Empty and steaming. Little Squirt was off and Bronze was overflowing and sending up good bubbles (and had microbes growing in the vent).
2799 29 Apr 2016 @ 1426 --- Siegmund Water level down out of sight, no sound of boiling
2633 22 Dec 2015 @ 1652 --- Tara Boiling to 1 foot
2568 21 Oct 2015 @ 1617 --- Janet Jones Empty and steaming with occasional boiling heard at depth.
16755 22 Oct 1998 @ 0000 22 Oct 1998 @ 2359 JarnoO active
15822 04 May 1997 @ 0000 04 May 1997 @ 2359 JarnoO active
12156 24 Feb 1993 @ 1028 --- JarnoO low and boiling
12134 01 Feb 1993 @ 0000 01 Feb 1993 @ 2359 JarnoO active
5576 20 Aug 1992 @ 0000 20 Aug 1992 @ 2359 JarnoO very low, Little Squirt apparently erupted within last few days
No attachments for this geyser.
Baseline does not exist.