Last Known Eruption
24y 152d 15h 53m ago

Latest Eruptions

Eruption DurationInterval
04 Jul 1998 @ 0936 min2m 22y 350d 20h 36m
24 Jul 1975 @ 1300

Interval Statistics

Interval Count1
Min22y 350d 20h 36m
Max22y 350d 20h 36m
Mean22y 350d 20h 36m
Median22y 350d 20h 36m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
24542 30 Oct 2022 @ 1140 --- SantaFe108 Boiling audibly and visible above the rim.
23736 11 Sep 2022 @ 1628 --- SantaFe108 Visibly and audibly boiling in its cone.
21959 12 Jun 2022 @ 1542 --- aferrara Water boiling up above vent rim
20807 12 Feb 2022 @ 1050 --- aferrara Water visibly boiling in cone
20611 09 Dec 2021 @ 1207 --- JarnoO (wc) At 1207, following Lion's 1205 minor eruption, both Lioness and Big Cub became very steamy to the point there were hints to a billowing steam plume. Lioness put up a wide, dense plume and shrunk magnitudes after Lion had its first roar since the minor early 1208.
16060 11 Sep 2020 @ 1322 --- DanS Audible boiling and a few small splashes. Again at 1329.
11532 02 Jun 2019 @ 1832 --- JSJ Spitting water (seen through steam) at 1832, 1837, and 1910.
16725 24 Sep 1998 @ 1847 --- JarnoO several 1 m bursts
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Baseline does not exist.