| Interval Count | 100 |
| Min | 9m |
| Max | 211d 2h 52m |
| Mean | 3d 5h 0m |
| Median | 12m |
| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
|---|---|---|---|---|
| 34895 | 04 Jun 2024 @ 1031 | 04 Jun 2024 @ 1424 | JSJ | All closed intervals. |
| 27466 | 08 Aug 2023 @ 1439 | 08 Aug 2023 @ 1846 | JSJ | All closed intervals. |
| 27428 | 05 Aug 2023 @ 1434 | 05 Aug 2023 @ 1709 | JSJ | All closed intervals. |
| 26347 | 15 Jun 2023 @ 1429 | 15 Jun 2023 @ 1638 | JSJ | All closed intervals. Durations 3 to 4 minutes. |
| 8705 | 15 Jun 2018 @ 1608 | --- | JSJ | Small hole with subterranean gurgling, plus occasional spits & small splashes on the western side of East Mustard Spring. Another vent with small, somewhat frequent splashing off the southwestern side of East Mustard Spring. |
| Entry | Source | Link | Comment |
|---|---|---|---|
| 15 Jun 2018 @ 1714 | JSJ | https://www.youtube.com/watch?v=ENPCJI2ISfE | Time lapse video of East Mustard Spring's eruptions during the afternoon of 15 June 2018. |