Last Known Eruption
17h 55m ago

Latest Eruptions

Eruption DurationInterval
19 Jun 2021 @ 1357 ie4h 31m
19 Jun 2021 @ 09262d 19h 13m
16 Jun 2021 @ 14135h 11m
16 Jun 2021 @ 090220h 12m
15 Jun 2021 @ 1250 ie4h 50m
15 Jun 2021 @ 0800 ie20h 48m
14 Jun 2021 @ 111243m 1d 14h 14m
12 Jun 2021 @ 2058 ie6h 48m
12 Jun 2021 @ 1410 ie4h 21m
12 Jun 2021 @ 0949 ie19h 34m
11 Jun 2021 @ 1415 ie58m
11 Jun 2021 @ 1317 ie1d 20h 43m
09 Jun 2021 @ 16341h 35m 3h 41m
09 Jun 2021 @ 1253 ie4h 11m
09 Jun 2021 @ 084221h 12m
08 Jun 2021 @ 11301h 34m 19h 0m
07 Jun 2021 @ 1630 ie6h 14m
07 Jun 2021 @ 1016 ns14h 18m
06 Jun 2021 @ 1958 ns4h 14m
06 Jun 2021 @ 1544 ie19h 47m
05 Jun 2021 @ 1957 ns5h 55m
05 Jun 2021 @ 1402 ns5h 7m
05 Jun 2021 @ 08551h 33m 15h 12m
04 Jun 2021 @ 17431d 3h 6m
03 Jun 2021 @ 14371h 43m 5h 31m
03 Jun 2021 @ 0906~1h 40m 16h 7m
02 Jun 2021 @ 1659 ie4h 9m
02 Jun 2021 @ 1250 ie5h 33m
02 Jun 2021 @ 0717 ie11h 1m
01 Jun 2021 @ 2016 ie5h 5m
01 Jun 2021 @ 1511 ie20h 40m
31 May 2021 @ 1831 ie6h 17m
31 May 2021 @ 121415h 11m
30 May 2021 @ 2103 ie6h 18m
30 May 2021 @ 14451h 41m 5h 13m
30 May 2021 @ 0932 ns3h 59m
30 May 2021 @ 0533 ie12h 32m
29 May 2021 @ 1701 ie1d 23h 36m
27 May 2021 @ 1725 ie2h 32m
27 May 2021 @ 1453 ie4h 28m
27 May 2021 @ 1025 ns7d 16h 16m
19 May 2021 @ 1809 ie6d 50m
13 May 2021 @ 1719 ie5h 18m
13 May 2021 @ 120116h 6m
12 May 2021 @ 19555h 3m
12 May 2021 @ 1452 ie1d 21h 22m
10 May 2021 @ 1730 ie12d 21h 58m
27 Apr 2021 @ 1932 ie108d 3h 5m
09 Jan 2021 @ 1527 ie13d 4h 24m
27 Dec 2020 @ 1103 ie57d 15m
31 Oct 2020 @ 1148 ie19h 13m
30 Oct 2020 @ 1635 ie16d 5h 24m
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

Interval Statistics

Interval Count100
Min41m
Max108d 3h 5m
Mean3d 14h 25m
Median19h 19m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
17772 14 Jun 2021 @ 1155 --- LynnS Stopped bursting and started draining.; completely drained by 1205
17484 05 Jun 2021 @ 0925 --- Graham First overflow.
17485 05 Jun 2021 @ 0820 --- Graham Came up strong, looked like it was starting as splashes reached above the rim but then it drained by 0828.
17289 30 May 2021 @ 1415 --- Graham Steaming and gurgling at depth but did not erupt.
17188 26 May 2021 @ 1101 --- bbev full and overflowing. Draining at 1105
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.