Last Known Eruption
21h 30m ago

Latest Eruptions

Eruption DurationInterval
25 May 2024 @ 134018h 2m
24 May 2024 @ 193858m 7d 8h 31m
17 May 2024 @ 1107~24m 2d 15h 6m
14 May 2024 @ 20012d 7h 1m
12 May 2024 @ 1300152h 30m
12 May 2024 @ 1030105013h 23m
11 May 2024 @ 21076h 3m
11 May 2024 @ 150423m 2h 19m
11 May 2024 @ 1245 ie14h 55m
10 May 2024 @ 21506h 26m
10 May 2024 @ 152425m 12d 20h 0m
27 Apr 2024 @ 19249h 49m
27 Apr 2024 @ 09357d 15h 34m
19 Apr 2024 @ 180135d 4h 39m
15 Mar 2024 @ 1322 ns62d 21h 40m
12 Jan 2024 @ 1442 ns6d 22h 42m
05 Jan 2024 @ 1600 ie89d 1h 13m
08 Oct 2023 @ 15471h 35m 23h 2m
07 Oct 2023 @ 1645 ie22h 57m
06 Oct 2023 @ 1748 ie4h 3m
06 Oct 2023 @ 1345 ie3h 1m
06 Oct 2023 @ 1044 ie17h 11m
05 Oct 2023 @ 1733 ie7h 24m
05 Oct 2023 @ 1009 ie19h 33m
04 Oct 2023 @ 14361d 4h 36m
03 Oct 2023 @ 1000 ie2d 17h 4m
30 Sep 2023 @ 1656 ie22h 17m
29 Sep 2023 @ 1839 ns1d 5h 6m
28 Sep 2023 @ 13336h 4m
28 Sep 2023 @ 072941m 1d 13h 54m
26 Sep 2023 @ 1735 ie4h 45m
26 Sep 2023 @ 1250<44m 1d 20h 36m
24 Sep 2023 @ 1614 ie1d 9h 6m
23 Sep 2023 @ 0708 ie>2h 50m 15h 19m
22 Sep 2023 @ 1549 ie3d 2h 38m
19 Sep 2023 @ 1311~1h 30m 2d 4h 12m
17 Sep 2023 @ 08595h 39m 2d 1h 35m
15 Sep 2023 @ 0724 ie>3h 51m 1d 13h 12m
13 Sep 2023 @ 1812 ie1d 7h 17m
12 Sep 2023 @ 10553h 15m 3h 57m
12 Sep 2023 @ 0658 ie1d 15h 22m
10 Sep 2023 @ 15361h 20m 8h 32m
10 Sep 2023 @ 0704 ie>42m 1d 16h 12m
08 Sep 2023 @ 1452 ns23h 25m
07 Sep 2023 @ 1527 ns1d 1h 36m
06 Sep 2023 @ 13511h 26m 5h 25m
06 Sep 2023 @ 082647m 21h 37m
05 Sep 2023 @ 1049 ie23h 20m
04 Sep 2023 @ 112946m 3h 4m
04 Sep 2023 @ 0825 ie>14m 1d 22h 5m
02 Sep 2023 @ 102015h 45m
01 Sep 2023 @ 1835 ie8h 1m
01 Sep 2023 @ 103417h 24m
31 Aug 2023 @ 1710 ie7h 25m
31 Aug 2023 @ 0945 ie1d 17m
30 Aug 2023 @ 09283h 8m
30 Aug 2023 @ 0620 ie>1h 15m 18h 23m
29 Aug 2023 @ 11576h 20m
29 Aug 2023 @ 0537 ie22h 19m
28 Aug 2023 @ 07187h 48m 18h 17m
27 Aug 2023 @ 1301 ie>50m 2d 2h 7m
25 Aug 2023 @ 10541h 45m 20h 39m
24 Aug 2023 @ 141552m 8h 0m
24 Aug 2023 @ 0615 ie10h 55m
23 Aug 2023 @ 1920 ns~1h 42m 11h 37m
23 Aug 2023 @ 07431h 37m 17h 48m
22 Aug 2023 @ 1355>35m 5h 24m
22 Aug 2023 @ 083151m 19h 20m
21 Aug 2023 @ 1311 ns33m 4h 41m
21 Aug 2023 @ 0830 ie>24m 18h 56m
20 Aug 2023 @ 1334 ie1d 4h 55m
19 Aug 2023 @ 0839 ie>3h 11m 1d 2h 9m
18 Aug 2023 @ 0630 ie>9h 18m 19h 34m
17 Aug 2023 @ 1056 ie20h 3m
16 Aug 2023 @ 1453<1h 32m 8h 27m
16 Aug 2023 @ 0626 ie>31m 14h 10m
15 Aug 2023 @ 1616 ie1d 23h 21m
13 Aug 2023 @ 16551d 10h 10m
12 Aug 2023 @ 0645 ie23h 20m
11 Aug 2023 @ 07254h 10m 21h 21m
10 Aug 2023 @ 10046h 43m 2d 23h 34m
07 Aug 2023 @ 1030 ie21h 8m
06 Aug 2023 @ 13221d 2h 32m
05 Aug 2023 @ 1050 ie>3h 56m 20h 25m
04 Aug 2023 @ 14252d 10m
02 Aug 2023 @ 1415 ie8h 5m
02 Aug 2023 @ 0610 ie18h 42m
01 Aug 2023 @ 11281h 5m 1d 12h 31m
30 Jul 2023 @ 2257 ie12h 32m
30 Jul 2023 @ 1025 ie17h 18m
29 Jul 2023 @ 1707 ie6h 19m
29 Jul 2023 @ 104857m 22h 33m
28 Jul 2023 @ 1215~5h 5m 6h 20m
28 Jul 2023 @ 0555 ie19h 25m
27 Jul 2023 @ 1030 ie4h 30m
27 Jul 2023 @ 0600 ie10h 48m
26 Jul 2023 @ 1912 ie4h 3m
26 Jul 2023 @ 15092h 59m
26 Jul 2023 @ 1210 ie6h 10m
26 Jul 2023 @ 0600 ie18h 30m

Interval Statistics

Interval Count100
Min2h 19m
Max89d 1h 13m
Mean3d 1h 13m
Median19h 29m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
34418 04 May 2024 @ 1426 --- Tara water level reached the sandy beach area about halfway up
34417 04 May 2024 @ 1355 --- Tara low water visible
27979 03 Sep 2023 @ 1000 03 Sep 2023 @ 1300 LynnS Not under observation during this time
27980 03 Sep 2023 @ 0625 03 Sep 2023 @ 1000 LynnS Did not erupt during this time.
27961 02 Sep 2023 @ 1926 --- SantaFe108 Empty.
27920 01 Sep 2023 @ 1035 01 Sep 2023 @ 1530 LynnS Spasm was in eruption during this time. The 1835ie report is most probably a continuation of this eruption since the Fountain Complex was in a stall.
27776 25 Aug 2023 @ 1305 25 Aug 2023 @ 1505 LynnS Break in data collection
27760 24 Aug 2023 @ 0900 24 Aug 2023 @ 1150 LynnS Break in data collection
27748 23 Aug 2023 @ 1225 23 Aug 2023 @ 1730 LynnS Spasm did not erupt during this time.
27744 23 Aug 2023 @ 1000 23 Aug 2023 @ 1225 LynnS Break in observations
27658 17 Aug 2023 @ 0650 17 Aug 2023 @ 0710 LynnS Spasm’s crater was about 2/3 full. Once Clepsydra resumed full activity, the crater drained.
27444 06 Aug 2023 @ 1030 --- LynnS Not in eruption, pool about 2/3 full. Drained by 1100.
27391 02 Aug 2023 @ 1200 02 Aug 2023 @ 1415 LynnS Break in collecting data
27375 01 Aug 2023 @ 1310 01 Aug 2023 @ 1410 LynnS Was not observed diring this time.
27348 30 Jul 2023 @ 1501 --- LynnS Ended an eruption
27202 24 Jul 2023 @ 1705 --- steve The old (far left) vent of Spasm filled in with sinter sand.
26734 29 Jun 2023 @ 0641 --- Graham Water riding slowly.evel got very high but it did not start and drained after Clepsydra came on steady.
26531 20 Jun 2023 @ 1654 --- Craigmon99 Spasm has not dropped since last note
26528 20 Jun 2023 @ 1619 --- Craigmon99 No longer dropping? Still ie and strong
26526 20 Jun 2023 @ 1608 --- Craigmon99 Beginning to drop
26518 20 Jun 2023 @ 1522 --- Craigmon99 Still ie at this time. No signs of dropping
26264 11 Jun 2023 @ 2011 --- Craigmon99 Left vent muddy and draining while boiling. Right vent empty
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.