Last Known Eruption
89d 13h 21m ago

Latest Eruptions

Eruption DurationInterval
16 Aug 2019 @ 14021d 18h 2m
14 Aug 2019 @ 20003-4 sec3m
14 Aug 2019 @ 19575-6 sec4m
14 Aug 2019 @ 195310s 4m
14 Aug 2019 @ 194912s 3m
14 Aug 2019 @ 194610s 4m
14 Aug 2019 @ 194210-15 sec1y 353d 2h 9m
26 Aug 2017 @ 173310d 21h 49m
15 Aug 2017 @ 19449d 3h 30m
06 Aug 2017 @ 161418m
06 Aug 2017 @ 155618m
06 Aug 2017 @ 15384m
06 Aug 2017 @ 153440m
06 Aug 2017 @ 1454358d 22h 11m
12 Aug 2016 @ 164310d 54m
02 Aug 2016 @ 154918m
02 Aug 2016 @ 15313m
02 Aug 2016 @ 152825d 22h 58m
07 Jul 2016 @ 163036m
07 Jul 2016 @ 155456m
07 Jul 2016 @ 1458<1m 18m
07 Jul 2016 @ 14403d 16h 58m
03 Jul 2016 @ 214217m
03 Jul 2016 @ 21256m
03 Jul 2016 @ 211928m
03 Jul 2016 @ 2051 ns5m
03 Jul 2016 @ 20465m
03 Jul 2016 @ 204126m
03 Jul 2016 @ 20158m
03 Jul 2016 @ 20071h 5m
03 Jul 2016 @ 190218m
03 Jul 2016 @ 18445m
03 Jul 2016 @ 183924d 3h 20m
09 Jun 2016 @ 15194m
09 Jun 2016 @ 151552m
09 Jun 2016 @ 14235m
09 Jun 2016 @ 14183d 21h 16m
05 Jun 2016 @ 17023m
05 Jun 2016 @ 16591h 32m
05 Jun 2016 @ 1527296d 21h 59m
13 Aug 2015 @ 172818m
13 Aug 2015 @ 171017m
13 Aug 2015 @ 16531h 26m
13 Aug 2015 @ 15277d 2m
06 Aug 2015 @ 152528d 23h 40m
08 Jul 2015 @ 1545 ie325d 24m
17 Aug 2014 @ 1521~4m 24y 318d 27m
09 Oct 1989 @ 145433s 4m
09 Oct 1989 @ 145024s 3m
09 Oct 1989 @ 144730s 4m
09 Oct 1989 @ 144321s 4m
09 Oct 1989 @ 1439 ini21s 1d 7h 50m
08 Oct 1989 @ 06498m 55s 2m
08 Oct 1989 @ 064729s 25d 18h 56m
12 Sep 1989 @ 115110s 3m
12 Sep 1989 @ 114821s 4m
12 Sep 1989 @ 114413s 3m
12 Sep 1989 @ 114114s 3m
12 Sep 1989 @ 113819s 3m
12 Sep 1989 @ 113521s 4m
12 Sep 1989 @ 113114s 3m
12 Sep 1989 @ 112818s 3m
12 Sep 1989 @ 112521s 4m
12 Sep 1989 @ 112124s 3m
12 Sep 1989 @ 111821s 3m
12 Sep 1989 @ 111512s 3m
12 Sep 1989 @ 111226s 3m
12 Sep 1989 @ 110924s 4m
12 Sep 1989 @ 110528s 3m
12 Sep 1989 @ 110226s 3m
12 Sep 1989 @ 105922s 3m
12 Sep 1989 @ 105624s 4m
12 Sep 1989 @ 105220s 3m
12 Sep 1989 @ 104921s 3m
12 Sep 1989 @ 104629s 3m
12 Sep 1989 @ 104319s 3m
12 Sep 1989 @ 104026s 3m
12 Sep 1989 @ 103722s 4m
12 Sep 1989 @ 103319s 3m
12 Sep 1989 @ 103028s 4m
12 Sep 1989 @ 102625s 3m
12 Sep 1989 @ 102326s 3m
12 Sep 1989 @ 102024s 4m
12 Sep 1989 @ 101627s 4m
12 Sep 1989 @ 101225s 4m
12 Sep 1989 @ 100824s 4m
12 Sep 1989 @ 100417s 3m
12 Sep 1989 @ 100123s 4m
12 Sep 1989 @ 095723s 4m
12 Sep 1989 @ 095323s 4m
12 Sep 1989 @ 094921s 3m
12 Sep 1989 @ 094625s 4m
12 Sep 1989 @ 094221s 3m
12 Sep 1989 @ 093923s 4m
12 Sep 1989 @ 093526s 3m
12 Sep 1989 @ 093217s 3m
12 Sep 1989 @ 092919s 4m
12 Sep 1989 @ 092527s 3m
12 Sep 1989 @ 092229s 3m
12 Sep 1989 @ 091923s 4m

Interval Statistics

Interval Count100
Min2m
Max24y 318d 27m
Mean109d 7h 14m
Median4m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
13397 13 Aug 2019 @ 1333 13 Aug 2019 @ 1506 JSJ Basin water-filled today (unlike yesterday). A Vent is somewhat restless - large blipping and small splashing.
13207 12 Aug 2019 @ 1048 --- JSJ Was confused about what I was seeing at first, but Three Vent Geyser's basin was empty (or at least, the water was out-of-sight from the Fountain overlook platform). Stayed this way all morning and afternoon. Have never, ever seen this before.
13182 11 Aug 2019 @ 1312 11 Aug 2019 @ 1710 JSJ 1312 - full basin, deep blue color, steaming, appears calm. 1710 - B Vent blipping.
12937 01 Aug 2019 @ 1050 --- JSJ B Vent somewhat restless.
11776 13 Jun 2019 @ 1512 --- JSJ Noticed B Vent was restless at 1512. Ditto at 1533.
10665 09 Aug 2018 @ 1128 09 Aug 2018 @ 1404 JSJ B Vent restless / low splashing.
9468 04 Aug 2018 @ 1641 --- JSJ No full eruptions seen in the late afternoon & early evening. Noticed blipping from B Vent at 1641-onward.
8738 16 Jun 2018 @ 1406 16 Jun 2018 @ 1713 JSJ Calm, water-filled basin at 1406. Noticed B Vent was slightly restless at 1713-onward.
5418 10 Aug 2017 @ 1416 --- JSJ Noticed B Vent was restless at 1416 and 1620.
4832 06 Aug 2017 @ 1257 06 Aug 2017 @ 1743 JSJ Three Vent Geyser occasionally restless this afternoon and evening, with some full eruptions occurring. All activity seemed to be originating from the B Vent (= southwestern corner of feature).
4809 05 Aug 2017 @ 1911 --- JSJ Decent doming from "B Vent" at 1911.
4678 01 Aug 2017 @ 2017 --- JSJ Noticed "B Vent" was restless; doming at 2018.
4578 28 Jul 2017 @ 1412 28 Jul 2017 @ 1850 JSJ Roiling from "B Vent" of Three Vent Geyser at 1412 and 1504. Roiling and low doming from "B Vent" at 1849-1850.
4301 11 Jun 2017 @ 1708 --- JSJ Roiling from C vent (= right front).
4300 11 Jun 2017 @ 1238 --- JSJ Decent roiling from C vent (= right front).
4196 03 Jun 2017 @ 1433 03 Jun 2017 @ 1521 JSJ Calm & quiet in the late morning and early afternoon, with water-filled basin. Restless during the mid-afternoon. Low to medium-sized spouting from the B Vent starting at 1433. Quiet at 1435. Intermittent low spouting from 1435 to 1504. Medium-sized spouting at 1506. Low spouting/roiling at 1511. Medium-sized spouting at 1514 & 1516-1518 & 1520-1521. Ceased observations after this.
3416 02 Aug 2016 @ 1201 02 Aug 2016 @ 1520 JSJ C Vent was restless for much of the afternoon. Roiling/doming at 1201. No visible water in basin at 1300. Moderately low to ~medium-sized bursting at 1317 - this continued (intermittently) to 1520.
3350 07 Jul 2016 @ 1409 --- JSJ Medium-sized bursting from "4B Vent" of Keller (2005) - GOSA Transactions 9: 121-133.
2986 05 Jun 2016 @ 1423 05 Jun 2016 @ 1905 JSJ Churning from "4B Vent" of Keller (2005 - GOSA Transactions 9: 121-133.) at 1423 and 1454. Low to medium-sized bursts at 1456. Relatively calm at early 1458. Churning to low bursting at late 1458. Calm at 1503. Three Vent Geyser eruption at 1527 to 1528 with decent-sized bursting. Small to medium-sized, intermittent spouting from the "4C Vent" of Keller (2005) at 1543 to 1628. Intermittent small spouting from 4C Vent at 1633. Basin's water level is higher at 1637. 4C Vent is just slightly roiling (intermittently) at 1637. 4C Vent with low to very low bursting at 1647 and 1649. Three Vent Geyser eruption at 1659 to 1700, with decent-sized bursting. Another eruption at 1702 to 1703, also with decent-sized bursting. Stopped making observations after this, but no more eruptions up to 1905, when I left.
2700 13 Aug 2015 @ 1634 13 Aug 2015 @ 1646 JSJ Low to very low spouting from a little before 1634 to 1636. Somewhat intermittent, moderately low bursting at 1638 to 1646. Eruptive activity is originating from the "4B Vent" of Keller (2005) - GOSA Transactions 9: 121-133. The 4B Vent is at the southwestern corner of Three Vent Geyser's basin.
2699 13 Aug 2015 @ 1141 --- JSJ Very low bursting at 1141. Eruptive activity is originating from the "4B Vent" of Keller (2005) - GOSA Transactions 9: 121-133. The 4B Vent is at the southwestern corner of Three Vent Geyser's basin.
2698 13 Aug 2015 @ 1114 --- JSJ Moderately low bursting at 1114. Eruptive activity is originating from the "4B Vent" of Keller (2005) - GOSA Transactions 9: 121-133. The 4B Vent is at the southwestern corner of Three Vent Geyser's basin.
2701 17 Aug 2014 @ 1429 17 Aug 2014 @ 1438 JSJ Splashing at 1429 to 1430 from the 4B Vent of Keller (2005) - GOSA Transactions 9: 121-133. Pool appeared mostly drained by 1438.
EntrySourceLinkComment
17 Aug 2014 @ 1521 JSJ https://www.youtube.com/watch?v=kWvGFk52ykk See the first clip of this video compilation for Three Vent Geyser's 3:21 to 3:25 PM eruption on 17 August 2014.
13 Aug 2015 @ 1653 JSJ https://www.youtube.com/watch?v=kWvGFk52ykk See clips 4 to 6 of this video compilation for Three Vent Geyser's 4:53 to 5:02 PM eruption on 13 August 2015.
13 Aug 2015 @ 1710 JSJ https://www.youtube.com/watch?v=kWvGFk52ykk See 2nd-to-last clip (clip # 7) of this video compilation for Three Vent Geyser's 5:10 to 5:11 PM eruption on 13 August 2015.
13 Aug 2015 @ 1728 JSJ https://www.youtube.com/watch?v=kWvGFk52ykk See last clip (clip # 8) of this video compilation for Three Vent Geyser's 5:28 to 5:32 PM eruption on 13 August 2015.
Baseline does not exist.


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