Last Known Eruption
2d 23h 29m ago

Latest Eruptions

Eruption DurationInterval
15 Sep 2021 @ 12092d 20h 46m
12 Sep 2021 @ 15232h 18m
12 Sep 2021 @ 13051d 19h 52m
10 Sep 2021 @ 17132h 15m
10 Sep 2021 @ 14582h 1m
10 Sep 2021 @ 1257 ie5d 2h 12m
05 Sep 2021 @ 10455d 21h 26m
30 Aug 2021 @ 13196m
30 Aug 2021 @ 13131d 3h 33m
29 Aug 2021 @ 0940 ie1d 22h 24m
27 Aug 2021 @ 11165m
27 Aug 2021 @ 11119d 1h 9m
18 Aug 2021 @ 1002 ns1d 23h 0m
16 Aug 2021 @ 1102 ie8d 17h 4m
07 Aug 2021 @ 1757:4942s 9d 22h 11m
28 Jul 2021 @ 19461d 9h 20m
27 Jul 2021 @ 10265d 23h 37m
21 Jul 2021 @ 104947s 23h 46m
20 Jul 2021 @ 1103 ns20h 38m
19 Jul 2021 @ 142538s 1d 22h 45m
17 Jul 2021 @ 1540 ie1d 23h 9m
15 Jul 2021 @ 163148s 2h 30m
15 Jul 2021 @ 140154s 24d 19h 10m
20 Jun 2021 @ 1851 ie4d 11h 34m
16 Jun 2021 @ 0717 ie1d 22h 26m
14 Jun 2021 @ 0851 ie14h 41m
13 Jun 2021 @ 18108h 56m
13 Jun 2021 @ 0914 ie22h 56m
12 Jun 2021 @ 10182d 13h 11m
09 Jun 2021 @ 210711h 44m
09 Jun 2021 @ 092310d 21h 12m
29 May 2021 @ 1211 ns227d 21h 19m
13 Oct 2020 @ 14525d 5h 59m
08 Oct 2020 @ 08539d 54m
29 Sep 2020 @ 0759 ie10d 21h 37m
18 Sep 2020 @ 10227m
18 Sep 2020 @ 101518h 8m
17 Sep 2020 @ 16073d 4h 20m
14 Sep 2020 @ 1147 ie20h 58m
13 Sep 2020 @ 14491d 23h 29m
11 Sep 2020 @ 15201d 6h 12m
10 Sep 2020 @ 0908 ie5d 18h 59m
04 Sep 2020 @ 140920h 41m
03 Sep 2020 @ 1728 ie1d 3h 14m
02 Sep 2020 @ 14143h 35m
02 Sep 2020 @ 10393d 58m
30 Aug 2020 @ 094117h 5m
29 Aug 2020 @ 16363h 38m
29 Aug 2020 @ 125846d 2h 7m
14 Jul 2020 @ 105130s 15d 7m
29 Jun 2020 @ 1044 ie25d 16h 39m
03 Jun 2020 @ 1805 ns2d 31m
01 Jun 2020 @ 1734 ns7d 8h 41m
25 May 2020 @ 0852:52 ns1m 10s 8m 17s
25 May 2020 @ 0844:351m 36s 248d 22h 24m
19 Sep 2019 @ 102054s 7m
19 Sep 2019 @ 101350s 1d 19h 12m
17 Sep 2019 @ 150117d 23h 56m
30 Aug 2019 @ 15052h 35m
30 Aug 2019 @ 12305d 17h 17m
24 Aug 2019 @ 1913 ie1d 2h 36m
23 Aug 2019 @ 16374d 6h 27m
19 Aug 2019 @ 1010 ie42d 14h 20m
07 Jul 2019 @ 1950 min7m
07 Jul 2019 @ 19432h 31m
07 Jul 2019 @ 1712 min8m
07 Jul 2019 @ 17042h 29m
07 Jul 2019 @ 1435 min7m
07 Jul 2019 @ 14288d 1h 47m
29 Jun 2019 @ 1241 ie26d 21m
03 Jun 2019 @ 12201d 16h 43m
01 Jun 2019 @ 1937 ie1d 2h 33m
31 May 2019 @ 17049d 5h 35m
22 May 2019 @ 1129 ie24d 22h 25m
27 Apr 2019 @ 1304 ie2h 23m
27 Apr 2019 @ 1041 min8m
27 Apr 2019 @ 1033 maj~1m 45s 211d 17h 38m
27 Sep 2018 @ 1655 ie22d 5h 14m
05 Sep 2018 @ 114115h 42m
04 Sep 2018 @ 1959 min~1m 10s 9m
04 Sep 2018 @ 1950~1m 15s 1d 1h 32m
03 Sep 2018 @ 1818 ns8m
03 Sep 2018 @ 1810~1m 30s 4d 3h 3m
30 Aug 2018 @ 15072h 36m
30 Aug 2018 @ 12311d 17h 21m
28 Aug 2018 @ 19107h 58m
28 Aug 2018 @ 111236d 21h 24m
22 Jul 2018 @ 1348 ie36d 22h 39m
15 Jun 2018 @ 1509 ns1d 5h 30m
14 Jun 2018 @ 093913d 19h 25m
31 May 2018 @ 1414 ie17d 19h 55m
13 May 2018 @ 1819 ie12d 50m
01 May 2018 @ 1729 ie230d 4h 9m
13 Sep 2017 @ 1320 ie5h 23m
13 Sep 2017 @ 075715d 17h 5m
28 Aug 2017 @ 14522h 48m
28 Aug 2017 @ 120422h 13m
27 Aug 2017 @ 1351 ie1d 23h 32m
25 Aug 2017 @ 14192h 51m
25 Aug 2017 @ 112819h 9m

Interval Statistics

Interval Count100
Min5m
Max248d 22h 24m
Mean14d 19h 52m
Median1d 19h 32m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
18527 19 Jul 2021 @ 1627 --- minissa Noted small bursting play 6-9" from Splendid side of Daisy trail, not sure if this constituted pre-play but there was definitely no water when we were heading toward Black Sand Pool about an hour earlier
16110 13 Sep 2020 @ 1443 --- William pre-eruptive splashing, probably started within the previous 5m
16071 11 Sep 2020 @ 1900 --- William appeared post eruptive, light steam
1613 19 May 2015 @ 1430 19 May 2015 @ 1648 JSJ Observed Pyramid Geyser from 1430 to 1715. Very slight steaming or slight steaming alternated with no visible activity from 1430 to 1644. One spit at 1544. Small spitting at late 1625. Continuous spitting, progressing to low to moderately low spouting, from 1645 to 1648. Eruption at 1648 + ~55s to 1649 + 38s, followed by prominent post-eruption steaming.
1079 11 Jun 2014 @ 1520 --- WillBoekel Post eruptive at 1520
EntrySourceLinkComment
07 Aug 2015 @ 1416 JSJ https://www.youtube.com/watch?v=2-w9eHBSwqc#t=7m28s See clip # 8 (= final clip) (time stamp - 7:28) of this video compilation.
20 May 2015 @ 1856 JSJ https://www.youtube.com/watch?v=2-w9eHBSwqc#t=6m05s See clip # 7 (time stamp - 6:05) of this video compilation.
20 May 2015 @ 1558 JSJ https://www.youtube.com/watch?v=2-w9eHBSwqc#t=4m22s See clip # 6 (time stamp - 4:22) of this video compilation.
20 May 2015 @ 1251 JSJ https://www.youtube.com/watch?v=2-w9eHBSwqc#t=3m19s See clip # 5 (time stamp - 3:19) of this video compilation.
19 May 2015 @ 1656 JSJ https://www.youtube.com/watch?v=2-w9eHBSwqc#t=1m47s See clip # 3 (time stamp - 1:47) of this video compilation.
19 May 2015 @ 1648 JSJ https://www.youtube.com/watch?v=2-w9eHBSwqc See clip # 1 of this video compilation.
19 May 2015 @ 1648 JSJ http://www.flickr.com/photos/jsjgeology/18946730368 Video of eruption.
20 May 2015 @ 1251 JSJ http://www.flickr.com/photos/jsjgeology/19138635631 Video of eruption.
Baseline does not exist.