Last Known Eruption
14h 27m ago

Latest Eruptions

Eruption DurationInterval
27 May 2023 @ 1405 maj14m
27 May 2023 @ 1351 min41s 1h 52m
27 May 2023 @ 1159 ini min21s 4d 15h 30m
22 May 2023 @ 2029 maj13m
22 May 2023 @ 2016 min4d 8h 20m
18 May 2023 @ 1156 maj1h 21m
18 May 2023 @ 1035 min2d 2h 59m
16 May 2023 @ 0736 maj13d 23h 40m
02 May 2023 @ 0756 ie maj20h 4m
01 May 2023 @ 1152 maj6m
01 May 2023 @ 1146 min55s 1h 25m
01 May 2023 @ 1021 min47s 1d 23h 15m
29 Apr 2023 @ 1106 maj8m 29s 1h 59m
29 Apr 2023 @ 0907 min1m 15s 58m
29 Apr 2023 @ 0809 min46s 3d 18h 29m
25 Apr 2023 @ 1340 min2h 22m
25 Apr 2023 @ 1118 min1m 5s 1h 41m
25 Apr 2023 @ 0937 min49s 77d 17h 44m
06 Feb 2023 @ 14532d 3m
04 Feb 2023 @ 1450 ie18d 23h 31m
16 Jan 2023 @ 1519 min1h 6m
16 Jan 2023 @ 1413 min1h 54m
16 Jan 2023 @ 1219 min5d 1h 58m
11 Jan 2023 @ 1021 maj13m
11 Jan 2023 @ 1008 min94d 17m
09 Oct 2022 @ 1051 min50s 2d 23h 48m
06 Oct 2022 @ 11035d 21m
01 Oct 2022 @ 10423d 16h 56m
27 Sep 2022 @ 1746 ie maj4h 31m
27 Sep 2022 @ 1315 min37s 1h 29m
27 Sep 2022 @ 1146 min28s 3d 1h 40m
24 Sep 2022 @ 1006 maj6m
24 Sep 2022 @ 1000 min~1m 5s 1h 10m
24 Sep 2022 @ 0850 min~47s 23h 1m
23 Sep 2022 @ 0949 min2d 20h 34m
20 Sep 2022 @ 1315 maj1h 42m
20 Sep 2022 @ 1133 min~8s 20h 45m
19 Sep 2022 @ 1448 min30s 1d 55m
18 Sep 2022 @ 1353 maj3d 19h 8m
14 Sep 2022 @ 1845 min2d 8h 25m
12 Sep 2022 @ 1020 maj6m
12 Sep 2022 @ 1014 min1h 10m
12 Sep 2022 @ 0904 min21h 7m
11 Sep 2022 @ 1157 min31s 2d 1h 50m
09 Sep 2022 @ 1007 maj10m 9s 13m
09 Sep 2022 @ 0954 min48s 2d 22h 33m
06 Sep 2022 @ 1121 maj1h 12m
06 Sep 2022 @ 1009 min40s 3h 14m
06 Sep 2022 @ 0655 min30s 5d 19h 25m
31 Aug 2022 @ 1130 maj8m 1h 15m
31 Aug 2022 @ 1015 min55s 2d 17h 33m
28 Aug 2022 @ 1642 maj1h 21m
28 Aug 2022 @ 1521 min20h 28m
27 Aug 2022 @ 1853 min45s 14m
27 Aug 2022 @ 1839 min30s 1h 55m
27 Aug 2022 @ 1644 min20s 3d 2h 59m
24 Aug 2022 @ 1345 maj18h 24m
23 Aug 2022 @ 1921 min3h 15m
23 Aug 2022 @ 1606 min47s 2h 49m
23 Aug 2022 @ 1317 min41s 1h 31m
23 Aug 2022 @ 1146 min41s 1h 21m
23 Aug 2022 @ 1025 min24s 4d 1h 43m
19 Aug 2022 @ 0842 ie maj22h 30m
18 Aug 2022 @ 1012 min45s 2d 15h 29m
15 Aug 2022 @ 1843 min54s 4d 3h 12m
11 Aug 2022 @ 1531 min45s 5d 15h 36m
05 Aug 2022 @ 2355 ns maj1h 25m
05 Aug 2022 @ 2230 ns min1h 44m
05 Aug 2022 @ 2046 min1m 1h 2m
05 Aug 2022 @ 1944 min45s 3d 1h 33m
02 Aug 2022 @ 1811 min40s 1h 54m
02 Aug 2022 @ 1617 min30s 1d 2h 14m
01 Aug 2022 @ 1403 maj14m
01 Aug 2022 @ 1349 min~40s 1h 37m
01 Aug 2022 @ 1212 min33s 1d 3h 47m
31 Jul 2022 @ 0825 ie maj18h 28m
30 Jul 2022 @ 1357 maj8m
30 Jul 2022 @ 1349 min1m 1h 13m
30 Jul 2022 @ 1236 min50s 3h 40m
30 Jul 2022 @ 0856 min43s 3d 1h 12m
27 Jul 2022 @ 0744 min19h 46m
26 Jul 2022 @ 1158 min1m 1h 1m
26 Jul 2022 @ 1057 min~45s 3h 18m
26 Jul 2022 @ 0739 min40s 1d 14h 40m
24 Jul 2022 @ 1659 min42s 1d 1h 58m
23 Jul 2022 @ 1501 maj1h 41m
23 Jul 2022 @ 1320 min1m 1h 5m
23 Jul 2022 @ 1215 min48s 21h 22m
22 Jul 2022 @ 1453 min45s 1h 44m
22 Jul 2022 @ 1309 min27s 1d 20h 1m
20 Jul 2022 @ 1708 maj13m
20 Jul 2022 @ 1655 min1m 1h 12m
20 Jul 2022 @ 1543 min>30s 18h 40m
19 Jul 2022 @ 2103 min40s 1h 22m
19 Jul 2022 @ 1941 min30s 4d 6h 42m
15 Jul 2022 @ 1259 maj9m
15 Jul 2022 @ 1250 min50s 1h 14m
15 Jul 2022 @ 1136 min38s 3h 19m
15 Jul 2022 @ 0817 min~30s 1d 19h 46m
13 Jul 2022 @ 1231 maj13m

Interval Statistics

Interval Count100
Min6m
Max94d 17m
Mean3d 4h 20m
Median3h 29m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
23142 11 Aug 2022 @ 1529 --- minissa Another OF. I skipped mentioning one at 1520 because the cone is barely draining only to fill and OF again and oh, look, 1530 filling and bubbling
23141 11 Aug 2022 @ 1517 --- minissa Another fill with OF at 1519,drained 1522
23140 11 Aug 2022 @ 1515 --- minissa Main cone drained but atomizer still "leaking" as described.
23139 11 Aug 2022 @ 1506 --- minissa First visible water in cone, reaching OF at 1512. Noticed with binoculars in good sunlight that as the main cone filled, the "atomizer" cone has 3 areas from which thin but steady stream of water are running as the main cone filled
23138 11 Aug 2022 @ 1349 --- minissa Cone still empty but steaming lightly, crack is seeping. Have been observing for about an hour, does not look post-eruptive
22807 23 Jul 2022 @ 0920 --- deanl when I arrived at above 0920, Atomizer was attempting a quick comeback major but failed
22513 12 Jul 2022 @ 1300 12 Jul 2022 @ 1305 deanl It filled and spashed several times over this period, like it was trying to erupt. This was probably the 1st minor.
22512 12 Jul 2022 @ 1155 --- RMichaels First overflow.
22060 22 Jun 2022 @ 0850 --- RMichaels Most likely had a major sometime early this morning, but not sure exactly when. No water or even steam seen during brief observation.
22056 21 Jun 2022 @ 1701 --- RMichaels First overlow following major eruption.
21585 30 May 2022 @ 1301 --- Skookum In stream phase
20659 10 Jan 2022 @ 0950 --- mhvogel My first Atomizer eruption ever! I'm almost positive it was a minor. Saw it ie at 0950 erupting at about 10-15 feet then at 0953 it briefly stopped a minute later and came back on at 0956 and began erupting higher, maybe 20+ feet. I left a little after 1000 as I had to walk back to the VC. I read Scott Bryans book and it didn't mention anything about brief pauses in between minors.
19491 11 Sep 2021 @ 1845 --- William Very little steam from both cones.
19311 05 Sep 2021 @ 0645 --- William back cone in constant light steam
19263 03 Sep 2021 @ 1854 03 Sep 2021 @ 2015 William arrived at 18:54, first observed water in back cone at 19:03. did not erupt prior to my departure at 20:15.
19245 02 Sep 2021 @ 1353 --- William water rose quickly in the cone at this time but did not erupt. first water seen but only been here since 13:35.
19119 27 Aug 2021 @ 1945 --- LynnS No major yet
19120 27 Aug 2021 @ 1355 27 Aug 2021 @ 1855 LynnS Atomizer fid not erupt during this time. The only activity was periodic fill, overflow, and occasionally bubbling accompanied the overflow. By 1800 the overflow had been so frequent iand heavy that the area around and between the two cones stayed wet, even between periods of overflow.
19121 27 Aug 2021 @ 1155 27 Aug 2021 @ 1355 LynnS Atomizer did not have another eruption between 1023 and 1155. Atomizer was not watched from 1155 to 1355. It could have had a minor eruption during this time. It did not have a major eruption because water levels in the minor cone were visibly rising and falling when I returnedl at 1355 and neither cone was steaming at 1355.
19028 23 Aug 2021 @ 1701 23 Aug 2021 @ 1754 minissa Atomizer restarted previously described activity, which continued throughout Artemesia's eruption but ultimately resulted in no eruption. We did note that there are several small, seeping cracks around the base of the "atomizer" /right-hand cone rather than one as previously noted, and seepage occurred during the described activity in the main cone.
19020 23 Aug 2021 @ 1645 --- minissa On the last of OF of this cycle, distinct bubbling over vent x 20 sec followed by complete drain that has exceeded 10 minutes. Not sure whether to count this as a minor but prolonged drain is more what you'd expect following an eruption. Distinctly different from behavior of the previous hour where cone would fill, OF, recede a bit, OF multiple times before draining and where cone only remained empty for a few minutes.
19017 23 Aug 2021 @ 1615 --- minissa Left hand cone continues to oscillate with good OF alternating with complete drain and rapid refill, whole cycle first OF to first OF taking about 15 minutes . Right hand cone appears to have a crack at its base through which slight seepage is visible with binoculars {also reflecting the sun given the right angle}
19016 23 Aug 2021 @ 1605 --- minissa Pool had drained at 1558 but is now full and overflowing again
19015 23 Aug 2021 @ 1541 --- minissa Reached overflow, sustained high pool but no bubbling
18967 20 Aug 2021 @ 0737 --- William water high in atomizer cone
18526 19 Jul 2021 @ 1340 19 Jul 2021 @ 1400 nails No minor immediately before major.
18469 17 Jul 2021 @ 0851 17 Jul 2021 @ 1055 William some weak splashing within 10m of previous min but otherwise no water seen during this time.
18460 16 Jul 2021 @ 2030 --- William light continuous steam from back cone.
18288 06 Jul 2021 @ 0821 --- William first water observed since 07:00
18096 25 Jun 2021 @ 2001 25 Jun 2021 @ 2245 William some post play immediately after previous minor, but did not erupt during this time
17933 19 Jun 2021 @ 1913 19 Jun 2021 @ 1917 William blipped and splashed to 1' but did not erupt
17932 19 Jun 2021 @ 1806 --- William first water in cone observed since at least 17:15
17647 10 Jun 2021 @ 1923 10 Jun 2021 @ 2120 William no further action from Atomizer during this time
17374 02 Jun 2021 @ 1250 --- Bhoffer Post Major Eruption. In end of steam phase.
17369 02 Jun 2021 @ 0805 02 Jun 2021 @ 0900 William no water observed during this time
16876 17 Apr 2021 @ 0914 --- User34 Late steam
16450 22 Oct 2020 @ 1855 --- William first water seen in Atomizer after major earlier today.
16446 20 Oct 2020 @ 1646 20 Oct 2020 @ 1830 William first visible water in atomizer at 16:46 since major earlier today, no eruption before 18:30
16145 16 Sep 2020 @ 1851 --- William constant light steam coming from back cone
15925 31 Aug 2020 @ 2011 31 Aug 2020 @ 2030 William no attempt at quick comeback maj during this time.
15706 23 Aug 2020 @ 1042 23 Aug 2020 @ 1343 William no further action from atomizer during this time.
15558 13 Aug 2020 @ 1308 13 Aug 2020 @ 1643 minissa Some seepage from cone when we arrived but otherwise main cone remained completely empty during this time period
15451 07 Aug 2020 @ 1901 07 Aug 2020 @ 1920 William steady light steam from back cone. reduced to a trickle of steam by 19:20.
15106 25 Jul 2020 @ 2025 25 Jul 2020 @ 2028 William post eruptive splashing to 2'. Did not lead to major by 20:45
14690 20 Jun 2020 @ 1330 20 Jun 2020 @ 1429 User34 Intermittently overflowing
13821 27 Sep 2019 @ 1715 27 Sep 2019 @ 1945 William no further action from Atomizer during this timeframe.
13327 20 Aug 2019 @ 0915 20 Aug 2019 @ 1215 William no follow up activity since previously noted minor.
13322 20 Aug 2019 @ 0910 20 Aug 2019 @ 0912 William post eruptive splashing up to 1'.
13238 14 Aug 2019 @ 1618 --- minissa Water briefly resumed, thin column to a height of maybe 10 feet after I called the end of the eruption due to both cones end of steam. A bit more steam both cones x next 5 minutes
13237 14 Aug 2019 @ 1542 --- minissa Start of yet another fill
13236 14 Aug 2019 @ 1524 --- minissa Start of another fill
13235 14 Aug 2019 @ 1509 --- minissa Another sustained fill
13234 14 Aug 2019 @ 1454 --- minissa Sustained fill in progress with water sheeting cone
13233 14 Aug 2019 @ 1310 --- minissa Filled and drainef
13046 05 Aug 2019 @ 1300 05 Aug 2019 @ 1530 Stephen_Gemar No eruption during this time.
11782 14 Jun 2019 @ 0805 14 Jun 2019 @ 1010 Choward Completely inactive. No periods of overflow.
11708 10 Jun 2019 @ 1910 10 Jun 2019 @ 1911 William 1 ft water bursts every 3-5 seconds
9699 13 Aug 2018 @ 1425 --- minissa Water has been seeping from crack in cone for at least 30 minutes, progressing slightly (visible from path with binocs)
9516 07 Aug 2018 @ 1150 07 Aug 2018 @ 1430 c.barwin The only activity at this time was audible splashing and steam around 1210 and then no other activity when I left the area at 1430.
9510 07 Aug 2018 @ 1110 --- c.barwin skip after seeing visible water and steam
3769 16 Sep 2016 @ 1638 16 Sep 2016 @ 1722 bhoppe Overflows occurring about 15-20 minutes apart. No eruption witnessed
3153 29 Jun 2016 @ 0800 --- Barbara Lasseter Both cones steaming lightly
3097 19 Jun 2016 @ 0630 --- LynnS Finished the major before I arrived. Both cones still steaming. Faint steam from east cone. Forced steam from west cone. Forcefulness of Steam from west cone had decreased such that steam was just wafting when I left at 0630.
3085 17 Jun 2016 @ 0940 --- LynnS Post-eruptive; light steam wafting from eastern cone; light steam pushing from western cone.
3042 10 Jun 2016 @ 1041 10 Jun 2016 @ 1700 JSJ Dry and empty all late morning & afternoon. First overflow at 1700. Left after that.
2775 22 Apr 2016 @ 1220 --- WillBoekel full of water
2746 17 Apr 2016 @ 1110 --- WillBoekel in late steam phase
2417 24 Sep 2015 @ 0904 24 Sep 2015 @ 0930 ThomasR No further eruption.
1824 01 Jul 2015 @ 1645 --- Jake came to overflow a couple times leading to 2nd eruption. didn't erupt, drained. I left
1143 31 Jul 2014 @ 0945 --- Tara Atomizer post-major at 0945.
16579 17 Feb 1998 @ 1200 --- JarnoO {generic time}; post major steam
15256 01 Jul 1996 @ 0928 --- JarnoO steaming; post major
14371 30 Aug 1995 @ 0000 30 Aug 1995 @ 2359 JarnoO vr 4 minors
5510 08 Aug 1992 @ 0900 --- JarnoO before 0900
EntrySourceLinkComment
03 Aug 2016 @ 1433 JSJ https://www.youtube.com/watch?v=MY_Beiau8JQ Video clips of Atomizer Geyser's ~2:33 PM-onward major eruption on 3 August 2016.
31 Jul 1993 @ 1357 JSJ https://www.youtube.com/watch?v=nOmGUlTI3mE Video by David Schwarz of Atomizer Geyser's ~1357 minor eruption on 31 July 1993.
06 Jul 1995 @ 1253 JSJ https://www.youtube.com/watch?v=3hE3eGnk_1Y Video by David Schwarz of Atomizer Geyser's 12:53 PM major eruption on 6 July 1995.
16 May 2015 @ 1326 JSJ http://www.flickr.com/photos/jsjgeology/18510924194 Video of eruption.
16 May 2015 @ 1642 JSJ http://www.flickr.com/photos/jsjgeology/18946083648 Video of eruption.
16 May 2015 @ 1814 JSJ http://www.flickr.com/photos/jsjgeology/18513378633 Video of eruption.
Baseline does not exist.