| Date: | 1975-08-21 |
| Time: | 1115 |
| Geyser: | Echinus |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 3m30s |
| Standardized Duration: | 3m 30s |
| Time Entered: | 2017-09-02 07:07:53 |
| Time Uploaded: | 2019-05-13 21:36:36 |
| Entrant: | research-mab |
| Observer: | 1975 Log |
| Submitted to: | Geysertimes.org |
| Comments: | 48 minute average for last 4 eruptions- far and away the shortest ave of the season |