Last Known Eruption
6d 15h 20m ago

Latest Eruptions

Eruption DurationInterval
14 Oct 2020 @ 1111 ie5d 20h 29m
08 Oct 2020 @ 1442 ie>40m 9d 19h 53m
28 Sep 2020 @ 1849 ie6d 5h 21m
22 Sep 2020 @ 1328 ie4d 20h 42m
17 Sep 2020 @ 16461h 38m 4h 2m
17 Sep 2020 @ 1244 ie17h 53m
16 Sep 2020 @ 18516d 10h 46m
10 Sep 2020 @ 08051h 45m 2d 17h 2m
07 Sep 2020 @ 1503 ns20h 9m
06 Sep 2020 @ 1854 ie5h 36m
06 Sep 2020 @ 1318 ie3h 16m
06 Sep 2020 @ 1002 ie5h 44m
06 Sep 2020 @ 0418 ie5h 20m
05 Sep 2020 @ 2258 ie8h 27m
05 Sep 2020 @ 1431 ie41m
05 Sep 2020 @ 1350 ns17h 55m
04 Sep 2020 @ 1955 ie6h 0m
04 Sep 2020 @ 1355 ie19h 26m
03 Sep 2020 @ 1829 ie23h 39m
02 Sep 2020 @ 1850 ie2d 21h 30m
30 Aug 2020 @ 2120 ie1d 1h 53m
29 Aug 2020 @ 1927 ie1d 2h 22m
28 Aug 2020 @ 1705 ie5h 25m
28 Aug 2020 @ 1140 ie5d 18h 19m
22 Aug 2020 @ 1721 ns8d 3h 49m
14 Aug 2020 @ 13329d 16h 7m
04 Aug 2020 @ 2125 ie1d 3h 58m
03 Aug 2020 @ 1727 ns19h 27m
02 Aug 2020 @ 2200 ns4h 5m
02 Aug 2020 @ 1755 ie11h 35m
02 Aug 2020 @ 0620 ie21h 25m
01 Aug 2020 @ 0855 ie5d 18h 6m
26 Jul 2020 @ 1449 ie1d 7h 34m
25 Jul 2020 @ 0715 ie1d 12h 5m
23 Jul 2020 @ 1910 ie1d 13h 40m
22 Jul 2020 @ 0530 ie1d 10h 14m
20 Jul 2020 @ 19164d 10h 42m
16 Jul 2020 @ 083413h 25m
15 Jul 2020 @ 1909 ie9h 40m
15 Jul 2020 @ 0929 ie2d 13h 2m
12 Jul 2020 @ 20271d 23h 4m
10 Jul 2020 @ 21232h 6m
10 Jul 2020 @ 1917 ie5d 11h 8m
05 Jul 2020 @ 0809 ie2d 13h 28m
02 Jul 2020 @ 1841 ie2d 6h 59m
30 Jun 2020 @ 114253m 4h 27m
30 Jun 2020 @ 0715 ie4d 20h 34m
25 Jun 2020 @ 1041 ie22h 46m
24 Jun 2020 @ 11552d 16h 34m
21 Jun 2020 @ 19211d 7h 54m
20 Jun 2020 @ 11272d 2h 52m
18 Jun 2020 @ 08354h 9m 6d 14h 8m
11 Jun 2020 @ 1827 ie1d 5h 37m
10 Jun 2020 @ 1250 ie3d 18h 50m
06 Jun 2020 @ 18005h 54m
06 Jun 2020 @ 120618h 28m
05 Jun 2020 @ 1738 ns9h 55m
05 Jun 2020 @ 0743 ns15h 17m
04 Jun 2020 @ 16269h 57m
04 Jun 2020 @ 06291h 8m 10h 53m
03 Jun 2020 @ 1936 ie8h 47m
03 Jun 2020 @ 10495h 9m
03 Jun 2020 @ 0540 ie1d 14h 45m
01 Jun 2020 @ 14554h 32m
01 Jun 2020 @ 10234h 33m
01 Jun 2020 @ 0550 ie17h 55m
31 May 2020 @ 11552h 30m 3h 0m
31 May 2020 @ 0855 ie1d 21h 42m
29 May 2020 @ 11131h 35m 4h 13m
29 May 2020 @ 0700 ie16h 11m
28 May 2020 @ 14492h 14m 6h 19m
28 May 2020 @ 0830 ie2d 21h 37m
25 May 2020 @ 1053 ie5d 20h 55m
19 May 2020 @ 1358 ns105d 2h 30m
04 Feb 2020 @ 1028 ie6d 1h 31m
29 Jan 2020 @ 085738d 23h 58m
21 Dec 2019 @ 0859 ie23h 49m
20 Dec 2019 @ 0910 ie3d 17h 50m
16 Dec 2019 @ 1520 ie43d 16m
03 Nov 2019 @ 1504 ie2d 2h 22m
01 Nov 2019 @ 1342 ie1d 20h 8m
30 Oct 2019 @ 1734 ie22d 5h 29m
08 Oct 2019 @ 1205 ns1d 22h 35m
06 Oct 2019 @ 1330 ns1d 19h 30m
04 Oct 2019 @ 1800 ie2d 23h 24m
01 Oct 2019 @ 18368h 38m
01 Oct 2019 @ 0958 ie4d 20h 9m
26 Sep 2019 @ 13494d 4h 23m
22 Sep 2019 @ 092614h 23m
21 Sep 2019 @ 1903 ns6d 19h 15m
14 Sep 2019 @ 2348 ns1d 5h 11m
13 Sep 2019 @ 1837 ns8h 19m
13 Sep 2019 @ 1018 ie14h 56m
12 Sep 2019 @ 19223d 11h 27m
09 Sep 2019 @ 0755 ns17h 41m
08 Sep 2019 @ 1414 ie14h 15m
07 Sep 2019 @ 2359 ie15h 31m
07 Sep 2019 @ 082813h 24m
06 Sep 2019 @ 1904 ie2h 29m
06 Sep 2019 @ 1635 ie5h 49m

Interval Statistics

Interval Count100
Min41m
Max105d 2h 30m
Mean4d 57m
Median1d 2h 7m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
16390 10 Oct 2020 @ 1225 --- steve Full and overflowing but not erupting. Drained 1258
15463 08 Aug 2020 @ 0915 08 Aug 2020 @ 0950 LynnS Spasm did not erupt during this time.
15121 29 Jul 2020 @ 0700 --- LynnS Not in eruption, crater empty
14824 01 Jul 2020 @ 0608 --- Graham Just ended eruption, full and just dropping below overflow. Clepsydra side vent is splashy.
14721 24 Jun 2020 @ 0700 --- LynnS Not in eruption
14662 18 Jun 2020 @ 0705 --- LynnS Crater is empty
13223 13 Aug 2019 @ 1913 --- Tara Draining.
12881 31 Jul 2019 @ 0703 --- rbwhitaker No water visible
11846 16 Jun 2019 @ 1715 16 Jun 2019 @ 1905 LynnS Break in data collection
11841 16 Jun 2019 @ 1420 16 Jun 2019 @ 1620 LynnS Break in data collection
11215 11 May 2019 @ 1200 --- Tara Empty.
10998 19 Apr 2019 @ 1420 --- Maureen Spasm overflowing and very blue, small boil on right pool.
10641 21 Oct 2018 @ 0824 --- rbwhitaker Drained
8671 13 Jun 2018 @ 1609 --- JSJ Pool already full & roiling at 1609. Already in overflow - runoff was filling Jelly Geyser's basin. Spasm Geyser's crater was already empty at 1646.
8267 22 May 2018 @ 1701 22 May 2018 @ 1745 jazzknick Filling. Murky water. 10 inches below overflow to start of overflow at 1714. Boiling to 2 feet. Continues to 1745 and then during Fountain play.
5390 25 Aug 2017 @ 0730 25 Aug 2017 @ 1035 Brian Spasm seen in overflow from at least 0730 until FTN, did slow drain after that, empty at 1012
4246 06 Jun 2017 @ 2000 06 Jun 2017 @ 2154 LynnS Spasm was dry the entire time.
3413 02 Aug 2016 @ 1715 02 Aug 2016 @ 1724 JSJ Full and roiling at 1715. Already overflowing into Jelly Geyser (includes Fountain's runoff) at 1724.
3026 09 Jun 2016 @ 1750 09 Jun 2016 @ 1811 JSJ Spasm already full and roiling at 1750. Basin already empty at 1811.
2035 06 Aug 2015 @ 1747 06 Aug 2015 @ 1918 JSJ Noticed at 1747 that Spasm Geyser's basin was nearly full, with 2 roils. Overflow at 1839. Overflow reached hole next to Jelly Geyser at 1843. Hole filled with water relatively quickly, with overflow at 1847. That overflow reached Jelly Geyser's basin at 1849.
228 17 Jul 1972 @ 1628 --- BoekelUpload 1628murky H2O
229 17 Jul 1972 @ 1628 --- BoekelUpload 1628murky H2O
EntrySourceLinkComment
07 Jul 2016 @ 1456 JSJ https://www.youtube.com/watch?v=nart9YM7O9I#t=7m57s Clips 36-53 of this video compilation (time stamp 7:57 to the end) show Spasm Geyser erupting during the mid-afternoon of 7 July 2016.
13 Aug 2015 @ 1800 JSJ https://www.youtube.com/watch?v=nart9YM7O9I#t=3m53s Clips 17-35 of this video compilation (time stamp 3:53 to 7:56) show Spasm Geyser erupting during the early evening of 13 August 2015.
05 Aug 2013 @ 0901 JSJ https://www.youtube.com/watch?v=nart9YM7O9I Clips 1-4 of this video compilation (beginning to time stamp 0:47) show Spasm Geyser erupting during the mid-morning of 5 August 2013.
Baseline does not exist.