| Date: | 2021-09-04 |
| Time: | 1251:00 |
| Geyser: | East Sentinel |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | Minor |
| Duration: | 4m00s |
| Standardized Duration: | 4m 0s |
| Time Entered: | 2021-09-04 12:51:01 |
| Time Updated: | 2021-09-04 14:20:44 |
| Time Uploaded: | 2021-09-04 14:20:45 |
| Entrant: | hkoenig |
| Observer: | Heinrich Koenig |
| Submitted to: | GeyserLog (iOS) |
| Comments: | Empty crater. Surging from south toward north. Update: Part of end of series of minors, ~12m apart. Around 13:40, activity shifted from South to North, with vent filling. |