Last Known Eruption
17h 13m ago

Latest Eruptions

Eruption DurationInterval
07 Jun 2023 @ 17086h 21m
07 Jun 2023 @ 104754m 21h 39m
06 Jun 2023 @ 1308 ie1d 19h 18m
04 Jun 2023 @ 1750 ie7h 51m
04 Jun 2023 @ 09595h 6m 16h 22m
03 Jun 2023 @ 1737 ie6h 12m
03 Jun 2023 @ 112518h 5m
02 Jun 2023 @ 1720 ie5d 40m
28 May 2023 @ 1640 ie1d 1h 43m
27 May 2023 @ 1457>4h 14m 6h 24m
27 May 2023 @ 0833~55m 2d 17h 46m
24 May 2023 @ 1447 ie1d 1h 42m
23 May 2023 @ 1305>3h 7m 16h 0m
22 May 2023 @ 21057h 5m
22 May 2023 @ 1400 ie20h 23m
21 May 2023 @ 1737 ns~1h 44m 1d 1h 19m
20 May 2023 @ 1618~8h 24m
20 May 2023 @ 0754~2h 6m 13h 51m
19 May 2023 @ 1803 ie20h 42m
18 May 2023 @ 2121 ie5h 29m
18 May 2023 @ 1552~50m 9h 42m
18 May 2023 @ 0610 ie1d 11h 18m
16 May 2023 @ 1852 ie8h 22m
16 May 2023 @ 10301h 58m 22h 25m
15 May 2023 @ 120515h 33m
14 May 2023 @ 20321d 2h 16m
13 May 2023 @ 18163h 47m
13 May 2023 @ 1429313d 19h 39m
09 May 2023 @ 1850 ie22h 11m
08 May 2023 @ 2039 ie2d 6h 59m
06 May 2023 @ 1340 ie3d 17h 39m
02 May 2023 @ 2001 ie1d 23h 47m
30 Apr 2023 @ 2014 ie3d 2h 43m
27 Apr 2023 @ 1731 ns3d 23h 19m
23 Apr 2023 @ 1812 ie87d 6h 44m
26 Jan 2023 @ 1028 ie15d 19h 11m
10 Jan 2023 @ 15177d 26m
03 Jan 2023 @ 1451 ie3d 1h 54m
31 Dec 2022 @ 1257 ie5d 1h 19m
26 Dec 2022 @ 1138 ie4d 21h 5m
21 Dec 2022 @ 1433 ns2d 5h 8m
19 Dec 2022 @ 0925 ie50d 16h 45m
29 Oct 2022 @ 1740 ie2d 7h 16m
27 Oct 2022 @ 1024 ie9d 16h 59m
17 Oct 2022 @ 172521h 49m
16 Oct 2022 @ 19366h 28m
16 Oct 2022 @ 1308 ie1d 20h 6m
14 Oct 2022 @ 1702 ie3d 20h 42m
10 Oct 2022 @ 2020 ie7h 52m
10 Oct 2022 @ 1228 ie1d 19h 13m
08 Oct 2022 @ 1715 ie3d 2h 17m
05 Oct 2022 @ 1458 ie3h 55m
05 Oct 2022 @ 1103 ie18h 37m
04 Oct 2022 @ 162655m 7h 53m
04 Oct 2022 @ 0833 ie17h 41m
03 Oct 2022 @ 1452 ie3h 32m
03 Oct 2022 @ 1120 ie21h 11m
02 Oct 2022 @ 1409 ie1d 22h 39m
30 Sep 2022 @ 15309h 15m
30 Sep 2022 @ 0615 ie>3h 48m 20h 56m
29 Sep 2022 @ 0919 ie14h 52m
28 Sep 2022 @ 18271h 41m
28 Sep 2022 @ 1646~39m 8h 47m
28 Sep 2022 @ 0759~17h 15m
27 Sep 2022 @ 1444 ie1d 1h 45m
26 Sep 2022 @ 1259~4h 36m 4h 14m
26 Sep 2022 @ 0845~1h 44m 13h 45m
25 Sep 2022 @ 1900 ie7h 54m
25 Sep 2022 @ 1106 ie1d 3h 18m
24 Sep 2022 @ 07486h 30m 17h 52m
23 Sep 2022 @ 13561h 39m
23 Sep 2022 @ 121749m 5h 19m
23 Sep 2022 @ 0658 ie>2h 19m 12h 33m
22 Sep 2022 @ 1825 ie1d 9h 29m
21 Sep 2022 @ 0856 ie19h 42m
20 Sep 2022 @ 1314 ie4h 20m
20 Sep 2022 @ 0854 ie16h 39m
19 Sep 2022 @ 1615 ie>3h 26m
19 Sep 2022 @ 1249 ie2d 4h 38m
17 Sep 2022 @ 0811 ns1h 31m
17 Sep 2022 @ 0640 ie10h 48m
16 Sep 2022 @ 19523d 9h 49m
13 Sep 2022 @ 1003 ie21h 51m
12 Sep 2022 @ 12126h 8m 19h 46m
11 Sep 2022 @ 1626 ie1d 3h 43m
10 Sep 2022 @ 1243 ie23h 36m
09 Sep 2022 @ 1307 ie1d 2h 6m
08 Sep 2022 @ 1101~3h 40m 1d 19h 28m
06 Sep 2022 @ 15333h 57m
06 Sep 2022 @ 11361h 44m 16h 17m
05 Sep 2022 @ 191943m 5h 20m
05 Sep 2022 @ 1359 ie7d 3h 47m
29 Aug 2022 @ 1012 ie1d 19h 7m
27 Aug 2022 @ 1505 ie1d 45m
26 Aug 2022 @ 1420 ie2d 17h 48m
23 Aug 2022 @ 2032 ie3d 7h 12m
20 Aug 2022 @ 1320 ie20h 23m
19 Aug 2022 @ 1657 ie5h 23m
19 Aug 2022 @ 1134 ie4h 22m
19 Aug 2022 @ 0712 ns1d 11h 28m

Interval Statistics

Interval Count100
Min1h 31m
Max87d 6h 44m
Mean2d 22h 32m
Median21h 3m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
25713 22 May 2023 @ 2053 --- Ajw Drained pool now refilling
25551 19 May 2023 @ 1200 19 May 2023 @ 1530 Tara Empty, no activity during this time
25519 18 May 2023 @ 1648 --- Graham Recently quit 1642 and right vent drained. Left vent is still full and has small splashes in it. 1652 bubbling and still full. 1657 calm and full. Drained by 1659.
25484 16 May 2023 @ 0938 --- Graham visible standing water with convection. Rising and splashing during each Clepsydra pause and dropping but still high during each eruption.
25306 30 Apr 2023 @ 2046 --- SantaFe108 End of eruption.
24215 04 Oct 2022 @ 0941 --- steve A about a foot below overflow
23741 11 Sep 2022 @ 1949 --- SantaFe108 Eruption ended.
23759 11 Sep 2022 @ 1520 --- steve Now about 15-18 inches below overflow.
23755 11 Sep 2022 @ 1443 --- steve Spasm stopped sometime during Fountain’s eruption but it didn’t drain. It is still a few inches below overflow.
23169 13 Aug 2022 @ 2147 --- mjacka Partially filled when I arrived at 0741. Began filling at 0758. 0811 bubbling began followed by surging at 0828. Eruptions began at 0836. By 0841, it began filling Jelly. By 0859 Jelly was overflowing from the overflow. Slowed to minor boil during Fountain eruption at 1417, then started up again after Fountain quit at 1447. Eruption ended at 1511.
22571 14 Jul 2022 @ 1114 --- LynnS Full of water, then drained.
22342 05 Jul 2022 @ 0530 --- LynnS Not erupting; crater is empty
22072 22 Jun 2022 @ 0820 22 Jun 2022 @ 1810 LynnS The only eruption of Spasm during this time was the eruption at 1528, which lasted 1h22m.
21895 10 Jun 2022 @ 0722 --- Graham Water slowly rising.
21408 21 May 2022 @ 1757 --- Graham Water slowly rising.
21403 21 May 2022 @ 1259 --- Graham Drained fast once Clepsydra came on strong.
21401 21 May 2022 @ 0820 --- Graham Water visible and rising.
21355 18 May 2022 @ 0838 --- Graham Water calmly rising in Spasm. Likely in a Fountain stall with 5 Clepsydra pauses so far.
19889 05 Oct 2021 @ 0951 05 Oct 2021 @ 1020 Jesselee In eruption at 0951
19841 01 Oct 2021 @ 1308 --- Graham Water rising during 4th Clepsydra pause. Dropped when Clepsydra erupted. 1311 water rising again during next pause and dropping when Clepsydra came on. 1336 rising during next pause.
19839 01 Oct 2021 @ 0749 --- Graham Water slowly rising while Clepsydra is in at least 3rd pause.
19664 20 Sep 2021 @ 0930 --- Graham Water visible in pool. Dropped when Clepsydra turned on strong.
19533 13 Sep 2021 @ 0749 --- Graham Water rising calmly.
19513 12 Sep 2021 @ 1424 --- Graham Pools connected with calm water. Dropping 1426.
19407 09 Sep 2021 @ 1456 --- Graham Spasm end time after Fountain. D~6h55m! No eruption by 1935.
19399 09 Sep 2021 @ 0748 --- Graham Water pooled and visible in the crater.
19209 31 Aug 2021 @ 2015 --- Graham Quit at 2015.
19188 31 Aug 2021 @ 1512 --- Graham Water standing in Spasm and Jelly just below the beach, refilled after Fountain. This is the 5th pause in Clepsydra. 1516 rising and both pools are connected. 1520 still rising and bubbling.
19180 31 Aug 2021 @ 0726 --- Graham Nearly full but dropping. Clepsydra side pool splashing over the rim. 0804 steaming and Jelly only dropped a little, just below the beach, but then drained empty during Fountain.
19153 29 Aug 2021 @ 0947 --- Graham Water pooling in the vent with no splashing. Dropped after Clepsydra restarted from 4th pause. It was empty during Fountain eruption.
18801 02 Aug 2021 @ 0900 02 Aug 2021 @ 1245 Brian Empty and inactive during this period of time
18657 25 Jul 2021 @ 1040 --- LynnS Empty and quiet
18632 24 Jul 2021 @ 0854 --- LynnS Crater is empty
18263 03 Jul 2021 @ 1910 --- William quit within the last 5 minutes
17986 21 Jun 2021 @ 2016 --- Tara Empty.
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.