Last Known Eruption
23h 27m ago

Latest Eruptions

Eruption DurationInterval
19 Sep 2021 @ 1123 min27s 1d 17h 33m
17 Sep 2021 @ 1749:5149s 4h 10m
17 Sep 2021 @ 1339 min32s 1h 55m
17 Sep 2021 @ 1143:37 min27s 2d 19h 26m 31s
14 Sep 2021 @ 1617:06 maj1d 57m
13 Sep 2021 @ 1520 maj10m 20s 13m
13 Sep 2021 @ 1507 min2d 3h 2m
11 Sep 2021 @ 1204:54 min41s 1h 51m 1s
11 Sep 2021 @ 1013:53 ini min30s 14h 54m 12s
10 Sep 2021 @ 1919:41 min42s 1d 6h 34m 12s
09 Sep 2021 @ 1245:29 ini min28s 1d 16h 37m 38s
07 Sep 2021 @ 2007:51 min47s 1h 32m
07 Sep 2021 @ 1835 min45s 3h 31m
07 Sep 2021 @ 1504 min~45s 1h 53m
07 Sep 2021 @ 1311 ini min18h 47m
06 Sep 2021 @ 1824 ie min2h 8m
06 Sep 2021 @ 1616 ini min26s 21h 16m
05 Sep 2021 @ 1900:00 min39s 1d 11h 23m 27s
04 Sep 2021 @ 0736:33 maj8m 37s 5m 4s
04 Sep 2021 @ 0731:29 min1m 6s 1d 17h 1m 0s
02 Sep 2021 @ 1430:29 maj7m 46s 5m 0s
02 Sep 2021 @ 1425:29 min1m 7s 1d 9m 25s
01 Sep 2021 @ 1416:04 maj5m 15s 6m
01 Sep 2021 @ 1410 min51s 19h 38m
31 Aug 2021 @ 1832 maj13m
31 Aug 2021 @ 181953s 1h 29m
31 Aug 2021 @ 1650 min37s 4h 34m
31 Aug 2021 @ 1216 min35s 2h 44m
31 Aug 2021 @ 093230s 1d 1h 6m
30 Aug 2021 @ 0826 maj1h 29m
30 Aug 2021 @ 0657 min1m 30s 22h 16m
29 Aug 2021 @ 0841 maj5m
29 Aug 2021 @ 0836 min>1m 30s 22h 16m
28 Aug 2021 @ 1020 maj1h 4m
28 Aug 2021 @ 0916 min~55s 2h 41m
28 Aug 2021 @ 0635 min~45s 20h 12m
27 Aug 2021 @ 1023 min32s 4d 22h 22m
22 Aug 2021 @ 1201 maj13m
22 Aug 2021 @ 1148 min46s 19h 46m
21 Aug 2021 @ 1602 min1m 0s 1h 11m
21 Aug 2021 @ 1451 min42s 3h 46m
21 Aug 2021 @ 1105 min38s 1h 57m
21 Aug 2021 @ 0908 min39s 5d 20h 30m
15 Aug 2021 @ 1238 maj~7m 6m
15 Aug 2021 @ 1232 min~1m 1h 37m
15 Aug 2021 @ 1055 min54s 20h 40m
14 Aug 2021 @ 1415 A maj7h 3m
14 Aug 2021 @ 0712 min~30s 1d 7h 7m
13 Aug 2021 @ 0005 maj1h 24m
12 Aug 2021 @ 2241 min1m 2h 6m
12 Aug 2021 @ 2035 min52s 1h 24m
12 Aug 2021 @ 1911 min45s 4h 33m
12 Aug 2021 @ 1438 min41s 2h 13m
12 Aug 2021 @ 1225 min29s 5d 21h 8m
06 Aug 2021 @ 1517 min40s 2d 15h 30m
03 Aug 2021 @ 2347 maj5h 18m
03 Aug 2021 @ 1829 min25s 11h 53m
03 Aug 2021 @ 0636 ie maj20h 41m
02 Aug 2021 @ 0955 min2h 6m
02 Aug 2021 @ 0749 min~1m 0s 1h 32m
02 Aug 2021 @ 0617 min2d 1m
31 Jul 2021 @ 0616 min30s 20h 17m
30 Jul 2021 @ 0959 min40s 2h 17m
30 Jul 2021 @ 0742 min322d 42m
28 Jul 2021 @ 0700 maj22h 9m
27 Jul 2021 @ 0851 maj1h 18m
27 Jul 2021 @ 0733 min55s 1h 11m
27 Jul 2021 @ 0622 min~40s 20h 52m
26 Jul 2021 @ 0930 min1m 2h 24m
26 Jul 2021 @ 0706 min52s 19h 58m
25 Jul 2021 @ 1108 maj1h 31m
25 Jul 2021 @ 0937 min1m 1h 19m
25 Jul 2021 @ 0818 min40s 1d 20h 20m
23 Jul 2021 @ 1158 min50s 22h 41m
22 Jul 2021 @ 1317 min38s 2h 5m
22 Jul 2021 @ 1112 min27s 19h 21m
21 Jul 2021 @ 1551 min35s 1d 7h 44m
20 Jul 2021 @ 0807 maj10m 32s 12m
20 Jul 2021 @ 0755 min52s 1h 25m
20 Jul 2021 @ 0630 min35s 16h 30m
19 Jul 2021 @ 1400 maj7m 42s 3h 6m
19 Jul 2021 @ 1054 min1h 20m
19 Jul 2021 @ 0934 min17h 36m
18 Jul 2021 @ 1558 maj6m 41s 5m
18 Jul 2021 @ 1553 min1m 17s 2h 54m
18 Jul 2021 @ 1259 min42s 4h 10m
18 Jul 2021 @ 0849 min45s 23h 59m
17 Jul 2021 @ 0850 min38s 4d 3h 50m
13 Jul 2021 @ 0500 A maj2d 23h 27m
10 Jul 2021 @ 0533 min3d 19h 13m
06 Jul 2021 @ 1020 min55s 1h 18m
06 Jul 2021 @ 0902 min41s 4d 12h 50m
01 Jul 2021 @ 2012 min44s 4d 10h 11m
27 Jun 2021 @ 1001 min42s 1d 14h 1m
25 Jun 2021 @ 2000 min42s 1d 13h 19m
24 Jun 2021 @ 0641 min~55s 21h 31m
23 Jun 2021 @ 0910 maj5m
23 Jun 2021 @ 0905 min1h 16m
23 Jun 2021 @ 0749 A min21h 26m
22 Jun 2021 @ 1023 maj~6m 4m

Interval Statistics

Interval Count100
Min4m
Max5d 21h 8m
Mean21h 22m
Median4h 56m
Initial-to-Initial
Interval Count3
Min20h 55m
Max1d 23h 34m
Mean1d 13h 59m
Median1d 21h 28m

Latest Notes

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