Last Known Eruption
1d 5h 0m ago

Latest Eruptions

Eruption DurationInterval
05 Jul 2020 @ 183810h 15m
05 Jul 2020 @ 082325s 3m
05 Jul 2020 @ 082030s 13h 52m
04 Jul 2020 @ 18281d 23h 21m
02 Jul 2020 @ 19074m
02 Jul 2020 @ 190310h 25m
02 Jul 2020 @ 08383m
02 Jul 2020 @ 083514h 13m
01 Jul 2020 @ 182210h 32m
01 Jul 2020 @ 07504m
01 Jul 2020 @ 0746 ie19h 48m
30 Jun 2020 @ 11583m
30 Jun 2020 @ 115523h 9m
29 Jun 2020 @ 12463m
29 Jun 2020 @ 12432d 14h 37m
26 Jun 2020 @ 22063m
26 Jun 2020 @ 22031d 14h 33m
25 Jun 2020 @ 07304m
25 Jun 2020 @ 072619h 20m
24 Jun 2020 @ 12063m
24 Jun 2020 @ 12034h 48m
24 Jun 2020 @ 07156m
24 Jun 2020 @ 07093m
24 Jun 2020 @ 07062d 9h 31m
21 Jun 2020 @ 21354m
21 Jun 2020 @ 21311d 9h 29m
20 Jun 2020 @ 12023m
20 Jun 2020 @ 115918h 37m
19 Jun 2020 @ 17225h 18m
19 Jun 2020 @ 120423h 11m
18 Jun 2020 @ 12532m
18 Jun 2020 @ 12512m
18 Jun 2020 @ 12495h 36m
18 Jun 2020 @ 07133m
18 Jun 2020 @ 07107d 12h 58m
10 Jun 2020 @ 18123m
10 Jun 2020 @ 18094h 52m
10 Jun 2020 @ 13174h 41m
10 Jun 2020 @ 08361d 2h 16m
09 Jun 2020 @ 06202m
09 Jun 2020 @ 061814h 10m
08 Jun 2020 @ 16085m
08 Jun 2020 @ 16032d 21h 56m
05 Jun 2020 @ 18074m
05 Jun 2020 @ 18039h 53m
05 Jun 2020 @ 08103m
05 Jun 2020 @ 08072m
05 Jun 2020 @ 080514h 51m
04 Jun 2020 @ 171410h 19m
04 Jun 2020 @ 06552m
04 Jun 2020 @ 06539h 11m
03 Jun 2020 @ 21422m
03 Jun 2020 @ 21404h 36m
03 Jun 2020 @ 17044m
03 Jun 2020 @ 17004h 56m
03 Jun 2020 @ 12044m
03 Jun 2020 @ 12004h 50m
03 Jun 2020 @ 07103m
03 Jun 2020 @ 070714h 56m
02 Jun 2020 @ 16115m
02 Jun 2020 @ 16068h 34m
02 Jun 2020 @ 07325m
02 Jun 2020 @ 07272m
02 Jun 2020 @ 072512m
02 Jun 2020 @ 071315h 7m
01 Jun 2020 @ 16064h 56m
01 Jun 2020 @ 11104m
01 Jun 2020 @ 11063m
01 Jun 2020 @ 11035h 5m
01 Jun 2020 @ 05582m
01 Jun 2020 @ 055614h 14m
31 May 2020 @ 15422d 2h 10m
29 May 2020 @ 13323m
29 May 2020 @ 13294h 54m
29 May 2020 @ 08352m
29 May 2020 @ 083314h 15m
28 May 2020 @ 18183m
28 May 2020 @ 18154h 48m
28 May 2020 @ 13274h 50m
28 May 2020 @ 08373m
28 May 2020 @ 083494d 22h 51m
23 Feb 2020 @ 0843140d 15h 49m
05 Oct 2019 @ 17543m
05 Oct 2019 @ 1751 ini6h 41m
05 Oct 2019 @ 11103m
05 Oct 2019 @ 1107 ini3d 23h 29m
01 Oct 2019 @ 11384m
01 Oct 2019 @ 113414d 23h 25m
16 Sep 2019 @ 12091d 12h 25m
14 Sep 2019 @ 2344 ini5d 14h 55m
09 Sep 2019 @ 084917h 48m
08 Sep 2019 @ 15017h 15m
08 Sep 2019 @ 07463m
08 Sep 2019 @ 07437h 51m
07 Sep 2019 @ 23526h 56m
07 Sep 2019 @ 16563m
07 Sep 2019 @ 165314m
07 Sep 2019 @ 16396h 52m
07 Sep 2019 @ 094714h 32m
06 Sep 2019 @ 1915 ini8h 13m

Interval Statistics

Interval Count100
Min2m
Max140d 15h 49m
Mean3d 47m
Median4h 51m
Initial-to-Initial
Interval Count4
Min6h 44m
Max20d 11h 23m
Mean7d 7h 42m
Median4d 6h 21m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
14529 03 Jun 2020 @ 2146 --- William failed attempt at eruption
13879 04 Oct 2019 @ 1800 --- Tara Visible water level ~8" below inner rim, group probably in a stall. See other notes.
13823 27 Sep 2019 @ 1936 27 Sep 2019 @ 1937 Tara Boiled up and filled basin but did not erupt.
13776 21 Sep 2019 @ 1906 21 Sep 2019 @ 1908 Tara Overflowed main crater rim with boiling over vent, had two small splashes at 1908, then dropped below rim without erupting.
13695 14 Sep 2019 @ 2348 --- Tara More eruptions may have happened during Fountain, but it was too steamy to see for sure.
13584 05 Sep 2019 @ 2008 --- Graham Boiled up
13556 05 Sep 2019 @ 0509 --- Graham Boiled with wesk splashes but did not erupt.
13543 04 Sep 2019 @ 1505 --- Graham Boiled up but didnt erupt.
13529 03 Sep 2019 @ 1636 --- Graham Boiled up but didnt erupt.
13494 01 Sep 2019 @ 1622 --- Graham Boiled up but didn't erupt.
13479 31 Aug 2019 @ 1738 --- Tara Boiled up for over a minute
13456 29 Aug 2019 @ 1655 --- steve Boiled to a few feet
13277 16 Aug 2019 @ 0018 --- Tara Boiled up without erupting
13261 14 Aug 2019 @ 1841 --- minissa Water rose as 1841 Fountain started and stayed up for at least 20 min (hard to see due to steam and wind direction), occasional bubbles but never erupted
13224 13 Aug 2019 @ 1920 --- Tara Visible boil.
13155 10 Aug 2019 @ 1951 --- Tara Boiled up for about a minute but did not erupt. Water level dropped but boiling stayed in view for several minutes.
13152 10 Aug 2019 @ 1849 --- Tara Visible boiling in progress on arrival.
13144 10 Aug 2019 @ 1130 --- Tara Visible boiling
13130 09 Aug 2019 @ 1342 --- Tara Visible boiling
13020 04 Aug 2019 @ 0942 --- Stephen_Gemar Boiled up at this time.
12944 01 Aug 2019 @ 2223 --- Tara Boiled up.
12910 01 Aug 2019 @ 0716 --- rbwhitaker Boiled up two or three feet, but I didn't see it erupt.
12501 16 Jul 2019 @ 0858 --- Barbara Lasseter Longish boil with one 3-4 ft burst
12496 16 Jul 2019 @ 0146 --- Tara Boiled up but did not erupt.
12460 12 Jul 2019 @ 1712 --- Tara First blips visible. Boils got stronger but Thief had not erupted as of 1815.
12043 29 Jun 2019 @ 1827 --- Tara First water seen.
11996 27 Jun 2019 @ 2204 --- Tara boiled up
11994 27 Jun 2019 @ 2102 27 Jun 2019 @ 2142 Tara Visible water level and boiling in crater on arrival at 2102. Water level continued to rise until several boil ups just prior to the initial eruption.
11590 05 Jun 2019 @ 0701 --- Graham Big boil
11430 30 May 2019 @ 2110 --- Tara Water visible. No eruption of Fountain or Morning as of 2125.
11433 30 May 2019 @ 1000 --- Kyle boiling up within crater up to 2 ft H D= ~10 sec. boiling audible within FTN immediately prior
11432 30 May 2019 @ 0952 --- Kyle boiling within crater 1-2 ft H. D<10 s. audible boiling within Fountain immediately prior
11431 30 May 2019 @ 0944 --- Kyle boiling up within crater with a little water briefly visible. <1ft. audible boiling within Fountain immediately prior to MT
11406 28 May 2019 @ 2154 --- Graham Boil up.
11405 28 May 2019 @ 2129 --- Graham Boil up.
11303 21 May 2019 @ 1430 21 May 2019 @ 1457 Kyle Steam cleared enough to see MT continual boiling 6-12 inches within crater prior to eruption
11278 21 May 2019 @ 0553 --- Micah Kipple Periodically rising and surging.
11207 10 May 2019 @ 2129 --- Tara Boiled up 2-3 feet.
11011 20 Apr 2019 @ 1405 --- DanS Boiling but no eruption.
7736 03 Sep 2017 @ 2359 --- Tara Boiled up but did not erupt.
5669 03 Sep 2017 @ 1030 --- Graham Boiled with a few splashes but not a full wruption.
5678 06 Aug 2017 @ 2054 --- JSJ Roiling at 2054 to 2055, but no eruption.
4886 04 Aug 2017 @ 1817 --- Tara Boiled up.
4885 03 Aug 2017 @ 2036 --- Tara Boiled up.
4463 13 Jul 2017 @ 1921 --- Tara Boiled up enough tobout water in basin.
4456 12 Jul 2017 @ 2202 --- Tara Boiled up but did not erupt.
4453 09 Jul 2017 @ 1938 --- Tara Very weak boil-up, water barely visible.
4383 30 Jun 2017 @ 2128 --- Tara Boiled up weakly at 2128, 2130, and 2131, no water into basin.
4382 29 Jun 2017 @ 2132 --- Tara Boiled up with water into the basin but did not erupt.
4282 08 Jun 2017 @ 2138 --- Tara Boiled up but did not erupt.
4148 27 May 2017 @ 1737 --- Tara Boiled up but did not erupt.
4091 12 May 2017 @ 2054 --- Tara Boiled up, no eruption.
4085 12 May 2017 @ 1248 --- Tara boiled up but did not erupt
4042 04 May 2017 @ 1706 --- Tara boiled up but did not erupt
3479 12 Aug 2016 @ 1623 --- JSJ Morning's Thief Geyser engaged in basin-wide roiling from 1623 to 1624, but no follow-up eruption(s).
3415 02 Aug 2016 @ 1718 --- JSJ Roiling at 1718, but no follow-up eruptions.
3412 02 Aug 2016 @ 1211 02 Aug 2016 @ 1213 JSJ Morning's Thief Geyser engaged in low roiling at 1211 and 1213, but no follow-up eruptions.
3387 30 Jul 2016 @ 1708 30 Jul 2016 @ 1712 Tara Boiled up at 1708 and 1712, no eruption.
2120 13 Aug 2015 @ 1312 --- JSJ Pool level rising with roiling/boiling at 1312, but no immediately subsequent eruption.
658 31 Oct 2012 @ 0000 31 Oct 2012 @ 1200 Maureen Steve was out at Fountain last night and saw multiple Morning\'s Thief eruptions for over 3 hours, yet no Fountain or Morning activity.
2708 30 Aug 2010 @ 1630 --- Tara Morning's Thief boiled up to about 5 feet at the start of Fountain but didn't have a full eruption.
EntrySourceLinkComment
09 Aug 2018 @ 1223 JSJ https://www.flickr.com/photos/jsjgeology/45811573254 Photo (1 of 4) of Morning Thief's Geyser's 12:23 PM eruption on 9 August 2018.
09 Aug 2018 @ 1218 JSJ https://www.flickr.com/photos/jsjgeology/46483349132 Photo (1 of 2) of Morning Thief's Geyser's 12:18 PM eruption on 9 August 2018.
06 Aug 2017 @ 1304 JSJ https://www.flickr.com/photos/jsjgeology/36442715011 Photo (out of 6) of Morning's Thief Geyser's 1:04 PM eruption on 6 August 2017.
10 Aug 2017 @ 1700 JSJ https://www.flickr.com/photos/jsjgeology/36183820090 Photo (out of 3) of Morning's Thief Geyser's 5:00 PM eruption on 10 August 2017.
10 Aug 2017 @ 1703 JSJ https://www.flickr.com/photos/jsjgeology/36183816810 Photo (1 of 4) of Morning's Thief Geyser's 5:03 to 5:04 eruption on 10 August 2017.
14 May 2015 @ 1715 JSJ https://www.youtube.com/watch?v=NHF-LylA7UY Video of the 5:15 PM eruption of Morning Thief's Geyser on 14 May 2015.
08 Jul 2014 @ 0826 JSJ https://www.youtube.com/watch?v=7zuQk8JsNTQ Clip # 1 of this video compilation depicts the Morning's Thief-Fountain dual eruption.
12 Jul 2014 @ 1532 JSJ https://www.youtube.com/watch?v=RKmS2pgjyGw Clips # 1-2 and # 7-8 of this video compilation depict the Fountain-Morning's Thief dual eruptions at 1532-1533 and 1536-1537.
Baseline does not exist.


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