| Date: | 1975-02-13 |
| Time: | 1439 |
| Geyser: | Event Non-Geyser Related |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2012-06-26 11:05:04 |
| Time Uploaded: | 2012-06-26 11:05:04 |
| Entrant: | BoekelUpload |
| Observer: | OFVCL-EV |
| Submitted to: | |
| Comments: | Old Faithful;2tremors~14:39;;OF Govt.Ar/Geys.Hill;felt tremors;;South Entrance;heard by ranger |