| Date: | 2018-07-31 |
| Time: | 1342 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | ~4m07s |
| Standardized Duration: | ~4m 7s |
| Time Entered: | 2018-07-31 13:42:51 |
| Time Updated: | 2018-07-31 13:47:23 |
| Time Uploaded: | 2019-05-13 21:49:06 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | preplay 1327; prediction GT 1345 | NPS 1342; eruption started with a massive jet which was within a second above the treeline in the background |