| Note: | 04/26/1987 Arsenic Geyser – Interesting cycle of activity noted in Arsenic. At 12:17, 12:23, and 13:31, a 2 – 5 foot, 20 second eruption occurred. The vent was then quiet until another cycle at 13:07, 13:12, 13:16, 13:20, 13:32, 13:35, 13:44 and 13:49. Each eruption lasted a little longer and was slightly more powerful. The third cycle was at 14:01, 14:14, 14:23, 14:33, 14:36, and 14:49. The water in all the eruptions was a muddy grey. Another minor at 15:01:27 suddenly started into a major eruption.
Ranging from 3 – 20 feet, it ended at 15:46:31. The major started with muddy water but it cleared to a more clear blue. |
