| Date: | 2015-12-19 |
| Time: | 2152 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | 3.25-3.5m |
| Time Entered: | 2015-12-19 21:52:50 |
| Time Updated: | 2015-12-19 23:56:48 |
| Time Uploaded: | 2015-12-19 21:56:46 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | |
| Comments: | Eruption start at ~mid-2152. Done at late 2155. |