Last Known Eruption
1y 355d 5h 15m ago

Latest Eruptions

Eruption DurationInterval
01 Jun 2020 @ 1740:44 ie8h 34m 26s
01 Jun 2020 @ 0906:18 ie1y 287d 48m
19 Aug 2018 @ 0818 ie5y 8d 14h 58m
11 Aug 2013 @ 1720 ie15y 312d 2h 5m
07 Oct 1997 @ 1515

Interval Statistics

Interval Count4
Min8h 34m
Max15y 312d 2h 5m
Mean5y 243d 6h 36m
Median3y 147d 19h 53m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
19478 11 Sep 2021 @ 1434 --- User34 Main vent went quiet and side vent in north side of the crater surged to 1-2 feet
14829 01 Jul 2020 @ 1149 --- Graham Not erupting. Started 1150. End 115115. 115211 start end 115327. 115512 start to 115602. 115658 started 115819. 115904 115910. 120015 to 120130. 120223 to 120320. 120514 to 120620. 120747. 121015
14569 08 Jun 2020 @ 1401 --- K.Cooper having large 5 foot surges ever few minutes.
14558 06 Jun 2020 @ 1807 06 Jun 2020 @ 1809 User34 Paused for about a minute and a half, during which a second vent on the north side of the crater surged to 1-2 feet for a few seconds
9200 15 Jul 2018 @ 1518 --- Micah Kipple Comet geyser completely silent for a good minute.
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