| Date: | 1964-09-25 |
| Time: | 1608 |
| Geyser: | Echinus |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2017-09-18 19:20:54 |
| Time Uploaded: | 2017-10-02 14:28:47 |
| Entrant: | research-mab |
| Observer: | 1964 log [Geo Box 2] |
| Submitted to: | |
| Comments: | All eruptions had a brief duration not exceeding 2½ minutes and some less than 2 minutes. The crater filled very rapidly and in at least two cases overflowed for 10 to 15 minutes before eruption. All day the water was a milky bluish hue – decidedly different from its usual clear green. |