Last Known Eruption
37d 22h 26m ago

Latest Eruptions

Eruption DurationInterval
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
06 Sep 2019 @ 1102 ini6h 58m
06 Sep 2019 @ 04043m
06 Sep 2019 @ 0401 ini15h 21m
05 Sep 2019 @ 12405m
05 Sep 2019 @ 123514h 43m
04 Sep 2019 @ 21523m
04 Sep 2019 @ 21496m
04 Sep 2019 @ 2143 ini1d 11h 32m
03 Sep 2019 @ 10117m
03 Sep 2019 @ 10042d 16h 16m
31 Aug 2019 @ 174821h 59m
30 Aug 2019 @ 19495m
30 Aug 2019 @ 19445m
30 Aug 2019 @ 1939 ini1d 9h 56m
29 Aug 2019 @ 09431d 11h 6m
27 Aug 2019 @ 22375m
27 Aug 2019 @ 2232 ini7h 13m
27 Aug 2019 @ 15195m
27 Aug 2019 @ 1514 ns1d 5h 4m
26 Aug 2019 @ 10105m
26 Aug 2019 @ 100513h 29m
25 Aug 2019 @ 20364m
25 Aug 2019 @ 20327m
25 Aug 2019 @ 20258d 21h 58m
16 Aug 2019 @ 222722h 2m
16 Aug 2019 @ 002515h 41m
15 Aug 2019 @ 08441d 11h 51m
13 Aug 2019 @ 20533m
13 Aug 2019 @ 205011m
13 Aug 2019 @ 203916m
13 Aug 2019 @ 2023 ini21h 41m
12 Aug 2019 @ 224214m
12 Aug 2019 @ 222810m
12 Aug 2019 @ 22186h 52m
12 Aug 2019 @ 15263m
12 Aug 2019 @ 15235m
12 Aug 2019 @ 151823m
12 Aug 2019 @ 1455 ini13h 43m
12 Aug 2019 @ 01126m
12 Aug 2019 @ 01063m
12 Aug 2019 @ 010314h 47m
11 Aug 2019 @ 10164m
11 Aug 2019 @ 1012 ini14h 26m
10 Aug 2019 @ 19463m
10 Aug 2019 @ 194312m
10 Aug 2019 @ 1931 ini6h 47m
10 Aug 2019 @ 12446m
10 Aug 2019 @ 12383m
10 Aug 2019 @ 123514m
10 Aug 2019 @ 122124m
10 Aug 2019 @ 1157 ini13h 7m
09 Aug 2019 @ 22506m
09 Aug 2019 @ 22443m
09 Aug 2019 @ 224116m
09 Aug 2019 @ 2225 ini6h 46m
09 Aug 2019 @ 15394m
09 Aug 2019 @ 15355m
09 Aug 2019 @ 153022m
09 Aug 2019 @ 150841m
09 Aug 2019 @ 142730m
09 Aug 2019 @ 1357 ini22h 19m
08 Aug 2019 @ 15384m
08 Aug 2019 @ 15347h 37m
08 Aug 2019 @ 07573m
08 Aug 2019 @ 07546m
08 Aug 2019 @ 074814m
08 Aug 2019 @ 073434m
08 Aug 2019 @ 070013h 13m
07 Aug 2019 @ 17475m
07 Aug 2019 @ 17423m
07 Aug 2019 @ 17396h 57m
07 Aug 2019 @ 10424m
07 Aug 2019 @ 10385m
07 Aug 2019 @ 103313m
07 Aug 2019 @ 102034m
07 Aug 2019 @ 094613h 37m
06 Aug 2019 @ 20093m
06 Aug 2019 @ 20066m
06 Aug 2019 @ 200012m
06 Aug 2019 @ 194835m
06 Aug 2019 @ 19136h 9m
06 Aug 2019 @ 13043m

Interval Statistics

Interval Count100
Min3m
Max14d 23h 25m
Mean14h 26m
Median16m
Initial-to-Initial
Interval Count15
Min6h 44m
Max20d 11h 23m
Mean3d 19h 27m
Median1d 4h 43m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
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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