| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 34898 |
04 Jun 2024 @ 1037 |
04 Jun 2024 @ 1437 |
JSJ |
All closed intervals. Outpost Geyser is still having shorts (S) and longs (L), like last season, but not alternating back and forth. Observed eruptions today: SSSLSLSSSLSSLSSLSSLSSSLSSLSSLSSLSLSSLSSLSS. Out of 42 eruptions, 29 were shorts (= 69%) and 13 were longs (= 31%). |
| 36405 |
13 Aug 2023 @ 1654 |
13 Aug 2023 @ 1834 |
JSJ |
All closed intervals. Alternating longs (L) and shorts (S): LSLSLSLSLSLSLSL. |
| 27467 |
08 Aug 2023 @ 1435 |
08 Aug 2023 @ 1846 |
JSJ |
All closed intervals. Still doing alternating longs and shorts. |
| 27429 |
05 Aug 2023 @ 1437 |
05 Aug 2023 @ 1709 |
JSJ |
All closed intervals. Alternating long (~3 to 4 minute durations) and short eruptions (less than 1 minute long). Long eruptions include splashing from undercut ledge - this is NOT Sentry erupting. Water splashes into Sentry's basin, which was mostly water-filled and had a submerged microbial ring. |
| 26348 |
15 Jun 2023 @ 1426 |
15 Jun 2023 @ 1632 |
JSJ |
All closed intervals. All eruptions started with low pool splashing. Alternating long and short eruptions - no exceptions. "Short" eruption durations were <1 minute. "Long" eruption durations were ~3 to 4 minutes. Splashing through an undercut geyserite ledge during Outpost eruptions gives the illusion of a separate vent erupting - it's not Sentry Geyser. |
| 25280 |
30 Apr 2023 @ 1117 |
--- |
SantaFe108 |
Outpost appears to be bimodal. It has weak (minor?) eruptions that don't completely fill the pool and last ~40 seconds followed by about ~3-4 minute intervals. Then it also had 3-4 minute long strong eruptions with Sentry followed by 11-12 minute intervals.
EDIT: Sentry is not erupting during the long eruptions of Outpost. The vent that is erupting is part of Outpost's pool, referred to as the "undercut ledge" by James St. John. |
| 14675 |
19 Jun 2020 @ 0905 |
19 Jun 2020 @ 0911 |
jkgood |
During brief observation it steadily blipped water 6-8 inches |
| 13151 |
10 Aug 2019 @ 1339 |
--- |
JSJ |
Lightly steaming & grumbling (has been). No eruptions during two hours of observation. |
| 8703 |
15 Jun 2018 @ 1615 |
--- |
JSJ |
In intermittent, very low splashing. |
| 8639 |
11 Jun 2018 @ 1803 |
--- |
JSJ |
Outpost Geyser in intermittent light splashing. |
| 2963 |
04 Jun 2016 @ 1646 |
04 Jun 2016 @ 1747 |
JSJ |
Outpost Geyser observed to have frequent spitting/very low spouting (just visible from boardwalk). Pool/basin on the immediate NNE side of Outpost Geyser was empty. |