Last Known Eruption
78d 12h 40m ago

Latest Eruptions

Eruption DurationInterval
04 Aug 2019 @ 094358m 1d 19h 44m
02 Aug 2019 @ 135922m 9d 14h 52m
23 Jul 2019 @ 230728m 25s 10d 2h 8m
13 Jul 2019 @ 205915m 1d 12h 8m
12 Jul 2019 @ 0851 ns20m 5d 10h 23m
06 Jul 2019 @ 222818m 1d 7h 54m
05 Jul 2019 @ 143420m 6d 14h 34m
29 Jun 2019 @ 0000 A18h 5m
28 Jun 2019 @ 055526m 5d 15h 33m
22 Jun 2019 @ 142224m 6d 9h 0m
16 Jun 2019 @ 052225m 16d 23h 8m
30 May 2019 @ 06146m 7h 9m
29 May 2019 @ 23051h 0m 1d 10h 11m
28 May 2019 @ 125414m 38s 5d 18h 34m
22 May 2019 @ 1820 ie>16m 89d 8h 25m
22 Feb 2019 @ 0855 ie18d 8h 55m
04 Feb 2019 @ 0000 ? A96d 23h 0m
30 Oct 2018 @ 0200 A3d 21h 0m
26 Oct 2018 @ 0500 A1d 16h 43m
24 Oct 2018 @ 1217 A~50m 7h 45m
24 Oct 2018 @ 0432 A2d 12h 32m
21 Oct 2018 @ 160021m 7h 49m
21 Oct 2018 @ 0811 ie22h 47m
20 Oct 2018 @ 0924 A10d 2h 21m
10 Oct 2018 @ 0703 ? A9h 39m
09 Oct 2018 @ 2124 A17h 46m
09 Oct 2018 @ 0338 A1d 1h 16m
08 Oct 2018 @ 0222 A16h 9m
07 Oct 2018 @ 1013 ? A5d 42m
02 Oct 2018 @ 093123m 2d 15h 1m
29 Sep 2018 @ 1830 A2d 7h 15m
27 Sep 2018 @ 111512m 19h 42m
26 Sep 2018 @ 153324m 6d 19h 41m
19 Sep 2018 @ 195220m 9d 6h 24m
10 Sep 2018 @ 132821m 3d 18h 14m
06 Sep 2018 @ 191421m 15d 10h 2m
22 Aug 2018 @ 09124y 297d 17h 44m
29 Oct 2013 @ 152823m 4h 46m
29 Oct 2013 @ 1042 ie9h 47m
29 Oct 2013 @ 0055 A55d 23h 57m
03 Sep 2013 @ 005856m 12h 10m
02 Sep 2013 @ 124829.5m 9d 2h 48m
24 Aug 2013 @ 100058m 20h 28m
23 Aug 2013 @ 133225m 5d 16h 19m
17 Aug 2013 @ 211329m 1d 8h 53m
16 Aug 2013 @ 12208m 45s 4h 52m
16 Aug 2013 @ 072830m 5d 21h 36m
10 Aug 2013 @ 0952 ns~10m 17h 17m
09 Aug 2013 @ 163518m 12h 39m
09 Aug 2013 @ 035626m 6d 19h 44m
02 Aug 2013 @ 08121h 1m 5d 5h 28m
28 Jul 2013 @ 024428m 4d 7h 58m
23 Jul 2013 @ 184620m 25s 1d 45m
22 Jul 2013 @ 180110m 8h 50m
22 Jul 2013 @ 091131m 5d 15h 50m
16 Jul 2013 @ 172121m 10h 34m
16 Jul 2013 @ 064726m 5d 7m
11 Jul 2013 @ 064020m 3d 20h 33m
07 Jul 2013 @ 100733m 5d 1h 6m
02 Jul 2013 @ 090121m 6d 22h 30m
25 Jun 2013 @ 103124m 19h 45m
24 Jun 2013 @ 144632m 5d 4h 30m
19 Jun 2013 @ 101626m 5d 17h 44m
13 Jun 2013 @ 16321h 8m 5h 6m
13 Jun 2013 @ 112622m 2d 6h 10m
11 Jun 2013 @ 051625m 4d 7h 52m
06 Jun 2013 @ 212423m 15h 52m
06 Jun 2013 @ 053217m 11h 48m
05 Jun 2013 @ 174433m 14h 26m
05 Jun 2013 @ 031824m 1d 18h 3m
03 Jun 2013 @ 091523m 3d 19h 59m
30 May 2013 @ 131615m 12h 1m
30 May 2013 @ 011534m 14h 10m
29 May 2013 @ 110525m 14h 22m
28 May 2013 @ 204328m 12h 37m
28 May 2013 @ 080625m 3d 2h 9m
25 May 2013 @ 055724m 23h 55m
24 May 2013 @ 060226m 11h 54m
23 May 2013 @ 180834m 1d 11h 0m
22 May 2013 @ 070825m 6d 17h 34m
15 May 2013 @ 133425m 8d 20h 43m
06 May 2013 @ 165124m 1d 1h 53m
05 May 2013 @ 1458 ie1d 22h 56m
03 May 2013 @ 160224m 18d 5h 17m
15 Apr 2013 @ 1045 ?37d 17h 58m
08 Mar 2013 @ 154730s 5h 1m
08 Mar 2013 @ 1046 ie>12m 55d 10h 46m
12 Jan 2013 @ 0000 ?17d 0m
26 Dec 2012 @ 0000 ?4d 0m
22 Dec 2012 @ 0000 ?52d 10h 47m
30 Oct 2012 @ 1413 ns7m 5h 15m
30 Oct 2012 @ 0858 ie35d 14h 43m
24 Sep 2012 @ 1815 ? ie15d 8h 9m
09 Sep 2012 @ 100622m 30d 1h 24m
10 Aug 2012 @ 084231m 6d 3h 48m
04 Aug 2012 @ 0454 ? ie34d 22h 38m
30 Jun 2012 @ 06168d 19h 36m
21 Jun 2012 @ 104030m 22h 9m
20 Jun 2012 @ 1231 ie134d 20h 47m
06 Feb 2012 @ 1444 ns5y 216d 2h 2m

Interval Statistics

Interval Count100
Min4h 46m
Max5y 216d 2h 2m
Mean47d 18h 26m
Median3d 19h 6m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
13878 04 Oct 2019 @ 1800 --- Tara Pool very high, along with Fountain. Apparently in a stall. "Beach" area completely submerged, water level maybe 1 foot below rim. It was steamy but the pool appeared to be calm with no visible boiling along the back side. Water level also visible in Morning's Thief.
13023 04 Aug 2019 @ 0820 04 Aug 2019 @ 0940 Stephen_Gemar Water in Morning was high on arrival, and easily visible from the boardwalk in front of Fountain. Observation throughout the period showed Morning to have nice boiling and a lot of convection. Activity continued until Morning erupted as part of the trifecta.
12978 02 Aug 2019 @ 1945 --- steve No visible water in Morning from the top of the stairs. No visible water in Fountain from the boardwalk.
12825 27 Jul 2019 @ 1500 27 Jul 2019 @ 1555 deanl water level over the island and good boil prior to Fountain. Boiled up and made an attempt when Fountain started.
12555 21 Jul 2019 @ 1847 --- deanl It had good water level and an active, large, and wide boil before Fountain. It boiled up and tried to start with Fountain but failed.
12479 13 Jul 2019 @ 1730 13 Jul 2019 @ 2059 Tara Arrived at 6h40m since previous Fountain and the entire peninsula on on the west side of the crater was above the water level. The water in Morning rose very slowly, finally covering the island next to the peninsula about 8h after Fountain. From then on the water level continued to rise with increased boiling; by 9h20m after Fountain there was vigorous bubbling in 3 different spots along the north (back) side of the crater with occasional bloops up to 6 inches inches high and visible convection. During this entire time there was nothing but light, wispy steam coming from Morning's Thief. Fountain's water level was also very high by the time its eruption started 10h07m after the previous eruption; Morning immediately had a 2-foot boil on the north edge, then a dome to 8-10 feet with waves across the entire pool and then bursting to start the eruption.
11890 19 Jun 2019 @ 1902 19 Jun 2019 @ 1915 William No initial reaction to Fountain eruption. Pool dropped 1ft by 19:08. MT tried unsuccessfully to erupt at the 7 minute mark of Fountain.
11879 19 Jun 2019 @ 0915 --- Scott H water 1.5 ft below rim, water seemed fairly high in Fountain as well
11867 18 Jun 2019 @ 0915 --- Scott H water 2 ft below the rim
11868 18 Jun 2019 @ 0437 --- LynnS Morning boiled hard, then burst up over 10 feet. I thought it had actually started an eruption but then water from Fountain reached Morning’s crater and it quit.
11864 17 Jun 2019 @ 2032 --- Tara After rising to a high water level with good boiling prior to the Fountain start, Morning had strong boils in the minute after Fountain, building to a wide boil at least 6 feet tall. Then Fountain had a very tall burst, Morning's Thief blipped, and Morning went calm and dropped before being drowned.
11250 16 May 2019 @ 1451 16 May 2019 @ 1653 bbev Water just visible upon arrival, slow rise of 6-8" with good boil in back of pool. Water level still 8-10" below "shelf" at NW edge of Morning's pool.
11216 11 May 2019 @ 1200 11 May 2019 @ 1249 Tara Full above the "island" on the left side on my arrival. Level rose slightly from there with occasional baseball size bubbles, but other than a wider boil right at the beginning of Fountain at 1249, nothing more was seen.
11204 10 May 2019 @ 1205 10 May 2019 @ 1338 bbev Morning was high, covering the back shelf, when we arrived. Morning boiled to 2' at 1 minute into Fountain.
10875 20 Jan 2019 @ 1200 --- Graham Full snow bank in the runoff area. Does not look like it erupted recently.
10695 30 Oct 2018 @ 2000 31 Oct 2018 @ 1345 steve When I drove by Morning today at 1345 I thought the run off channels were wet so Morning had just erupted. But that did not jive with the earlier Fountain time, so I went back out. I think now what I am seeing is ice in the Morning channels, so maybe there was an overnight or early morning eruption. Or a early dual.
10584 07 Oct 2018 @ 1600 --- Maureen Eruption hours ago...runoff channels wet down north hillside.
10564 05 Oct 2018 @ 1140 --- DanS Low water visible. Still snow on platform slope.
10550 04 Oct 2018 @ 1005 --- bbev Steamy, water level low, hard to determine level.
10543 04 Oct 2018 @ 0700 --- William Water level very low in Morning. No water visible in Fountain crater.
10536 03 Oct 2018 @ 0830 --- ThomasR No water visible within Morning. Platform around Morning wet with some puddles. Possibly could have been Fountain and/or Morning’s Thief given the wind direction.
10272 17 Sep 2018 @ 1702 17 Sep 2018 @ 1728 ThomasR Morning had frequent small splashes (approx. 4 Inches) prior to the Fountain eruption and boiled up when Fountain started at 1728, but did not erupt.
10195 14 Sep 2018 @ 1205 --- Suzanne no water visible
10165 12 Sep 2018 @ 1011 12 Sep 2018 @ 1451 Brian Arrived at Fountain at 1011, water visible in Morning and Fountain. Fountain pool rose 3” around SFP at 1018. Morning pool dropped at 1039, but recovered by 1048, while Fountain also got somewhat higher. Morning North edge boil started around 1055, got gradually stronger and started to include center pool convection. Convection continued while pool continued rise right up until Fountain start at 1408. Morning had a boil over vent at Fountain start, then lost view of activity due to steam. Strong SW wind was blowing water from Fountain directly into the Morning pool After end of Fountain, Morning pool continued at high level for a few minutes until draining out of view by 1451.
10161 12 Sep 2018 @ 0730 --- Suzanne no water visible
10162 11 Sep 2018 @ 1700 11 Sep 2018 @ 1717 Polly Water in Morning was just visible upon arrival at about 1230. From then on, Morning rose slowly but mostly steadily. As it got close to time for Fountain, Morning rose a bit more quickly. It became steamy and had continuous boiling along the back wall. I saw one brief small boil in the middle. (It was a windy afternoon.)
10150 11 Sep 2018 @ 1000 --- Maureen Run off channels on back side of Morning were wet.
10137 10 Sep 2018 @ 0859 10 Sep 2018 @ 1328 Brian Water first became visible in Fountain and in Morning at 0935. Fountain rose a few inches with start of 2nd SFP at 1101, and held steady at that level until the usual rise right before eruption. The Morning pool was more variable, noticeably dropping around 1138, only to rise again and begin boiling slightly at the North edge. Some convection and a few lazy bubbles observed in center of pool periodically over the next 2 hours. Large Morning boil at start of Fountain at 1327, proceeded quickly to bursting and eruption.
10110 08 Sep 2018 @ 1412 --- bbev No water visable, empty.
10086 07 Sep 2018 @ 0740 --- Maureen Run off channels on back side of Morning wet. From last night’s eruption or another?
9850 24 Aug 2018 @ 0615 24 Aug 2018 @ 0701 JimS No water visible, lightly steaming.
9846 23 Aug 2018 @ 0800 23 Aug 2018 @ 1310 Micah Kipple No Morning yet. Pool level gradually filled throughout the morning and by 1310 had a steady boil in the pool.
9842 23 Aug 2018 @ 0627 --- JimS Empty at 0627 with very light steam.
3736 01 Oct 2016 @ 1545 --- Tara Water level very high to match Fountain, about 18 inches below rim. No boiling seen, no water visible in or around Morning's Thief.
725 22 Dec 2012 @ 0000 22 Dec 2012 @ 2359 Micah Kipple Runoff Channels were melted, Sinter Platform was washed, and Fountain was spitting out a \"tremendous\" amount of Rock.
385 13 Aug 2012 @ 0000 13 Aug 2012 @ 1200 Maureen Signs lead to a possible Morning eruption early this morning. I wrote a post on the list serv about it.
378 04 Aug 2012 @ 0700 --- Maureen when I walked out at 0700, the stairs going down to Fountain were very wet. The lower boardwalk was dry, as was the overlook, leading me to think maybe a big burst lay down there...in the evening it was where I was watching Fountain, and the stairs were DRY when I left the area after the 2131 eruption. No rain overnight. Twig was also dry along with Fountain.
311 20 Jun 2012 @ 0000 20 Jun 2012 @ 2359 LynnS Morning Geyser per Maureen
797 18 Jun 2012 @ 0800 18 Jun 2012 @ 1931 Tara Morning likely erupted mid-morning on June 18. Morning\'s Thief erupted only after the 1931 Fountain had started and Twig was early during that Fountain as well.
778 31 Mar 1994 @ 0000 31 Mar 1994 @ 1200 LynnS Erupted sometime in the am
7544 17 Apr 1976 @ 0000 17 Apr 1976 @ 2359 JSJ 17 April 1976 - Dormant.
275 29 Jul 1973 @ 1530 --- BoekelUpload 2in to rim;1530
274 29 Jul 1973 @ 1430 --- BoekelUpload slt ovfl;1430
Baseline does not exist.


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