| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 21799 |
06 Jun 2022 @ 1747 |
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SantaFe108 |
Frequent small splashing without erupting. |
| 19955 |
10 Oct 2021 @ 1754 |
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SantaFe108 |
(wc) Sustained, moderate-to-low height play for 15 seconds. Possibly a minor eruption or very large pre-play. Camera panned away for Old Faithful so I couldn't see if there was a full-sized eruption after. |
| 19512 |
12 Sep 2021 @ 1507 |
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SantaFe108 |
(wc) Small non-eruptive splashing at 1507/08, and also at 1509. Both episodes lasted only seconds. |
| 19217 |
31 Aug 2021 @ 1845 |
31 Aug 2021 @ 1901 |
SantaFe108 |
(wc) UNNG-GHG-18 "Marmot's Tail" N-NE of Marmot Cave and W-SW of Plate. A small eruption started at 1845, followed by an increase to almost full height (~1'), which fizzled out within seconds. More small eruptions occured every few minutes, all of them incredibly small and durations of only seconds. This lasted until the next full-sized eruption at 1901. I am unsure if it continued after. |