Last Known Eruption
132d 11h 32m ago

Latest Eruptions

Eruption DurationInterval
12 Sep 2020 @ 1828 ie6h 0m
12 Sep 2020 @ 12281d 7h 28m
11 Sep 2020 @ 0500 ie43y 87d 16h 7m
26 Jun 1977 @ 12531h 50m
26 Jun 1977 @ 11032m16

Interval Statistics

Interval Count4
Min1h 50m
Max43y 87d 16h 7m
Mean10y 296d 1h 51m
Median18h 44m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
16306 29 Sep 2020 @ 1408 --- Janet Jones muddy water
16169 18 Sep 2020 @ 1008 --- Graham High water level, seeped wet 3 feet toward Vault.
16122 14 Sep 2020 @ 0744 --- Graham Full snd seeping overflow. Brown color with scum on the surface.
16107 13 Sep 2020 @ 1323 --- Graham Risen to a few inches from the top.
16096 13 Sep 2020 @ 0852 --- Graham Very low and calm. Red inner crater visible. Down 8" or so.
16041 10 Sep 2020 @ 2245 --- William had begun to intermittently boil muddy water to ~2' by this time.
16038 10 Sep 2020 @ 1710 --- Graham Overflowing and bubbling vigorously
15777 29 Aug 2020 @ 0935 --- Suzanne Muddy pool is calm, no boiling, and has dropped to about 18 inches below the crater rim. Lots of red color in the crater wall.
15776 28 Aug 2020 @ 2000 28 Aug 2020 @ 2130 William Intermittently boiling to 2' with water level 4" below the crater rim and has exposed an inner rim on the close side to the boardwalk. Water level appears to have dropped ~1" during observation.
15758 28 Aug 2020 @ 0655 --- BrianR Infant pool level back below rim Still boiling brownish (not as brown as yesterday) up to 2ft
15756 27 Aug 2020 @ 1947 --- William still erupting muddy water. Water level has dropped to below 1"-2" below the crater rim.
15755 27 Aug 2020 @ 1903 --- BrianR Infant continues same brown water boiling activity
15743 27 Aug 2020 @ 0653 --- BrianR Continues yesterday activity, Still brown
15732 26 Aug 2020 @ 1501 26 Aug 2020 @ 1932 BrianR Boiling up to 2.5ft brown water every 1 to 1.5 minutes for 20 to 30 secs
15731 26 Aug 2020 @ 1429 --- aferrara Muddy, vigorous boil, briefly overflowed
15049 20 Jul 2020 @ 1600 --- KevinS Pool is full and very dirty water in a slow swirl motion.
15036 19 Jul 2020 @ 1251 --- User34 Very high and slightly scummy
11287 11 May 2019 @ 0821 --- Siegmund Full (trickle of water oozing out through the gravel)
10361 16 Sep 2018 @ 1120 --- Siegmund Water ~2cm below overflow
3859 05 Nov 2016 @ 1100 --- Janet Jones Lightly boiling and gently surging and overflowing a bit.
3184 22 Jun 2016 @ 0955 --- David Murky, calm water to near overflow. See photo: https://www.flickr.com/photos/ujelang/27436628603/in/photolist-JiWftd-HNtTNK/
2834 10 May 2016 @ 1324 --- WillBoekel has dropped about 1-2 inches from yesterday.
673 08 May 2011 @ 0000 08 May 2011 @ 2359 BoekelUpload active
15813 13 Apr 1997 @ 0000 13 Apr 1997 @ 2359 JarnoO unreadable
15304 14 Oct 1996 @ 0000 14 Oct 1996 @ 2359 JarnoO boiling 1 foot
14431 14 Nov 1995 @ 1700 --- JarnoO H2O down 8cm
12222 12 Jun 1993 @ 1942 --- JarnoO boiling; height ~20cm
596 08 Aug 1976 @ 1800 --- BoekelUpload 1800 full w/slight overflow
300 06 Aug 1973 @ 0000 06 Aug 1973 @ 2359 BoekelUpload Infant; pool full
299 05 Aug 1973 @ 2017 --- BoekelUpload Infant overflowing @ 20:17
No attachments for this geyser.
Baseline does not exist.