Last Known Eruption
88d 6h 31m ago

Latest Eruptions

Eruption DurationInterval
08 Jul 2022 @ 2342 ns15h 43m
08 Jul 2022 @ 075930m 19h 21m
07 Jul 2022 @ 123833m 1d 3h 33m
06 Jul 2022 @ 090524m 1h 59m
06 Jul 2022 @ 07063m 13h 12m
05 Jul 2022 @ 1754 ie4h 47m
05 Jul 2022 @ 130722m 21h 30m
04 Jul 2022 @ 1537 ns5h 44m
04 Jul 2022 @ 095313h 45m
03 Jul 2022 @ 2008 ns4h 36m
03 Jul 2022 @ 15324h 34m
03 Jul 2022 @ 105822m 1h 20m
03 Jul 2022 @ 09385m 1d 41m
02 Jul 2022 @ 085724m 35m
02 Jul 2022 @ 08222m 18h 57m
01 Jul 2022 @ 132525m 4h 4m
01 Jul 2022 @ 092118m 18h 47m
30 Jun 2022 @ 14349h 30m
30 Jun 2022 @ 0504 ns9h 4m
29 Jun 2022 @ 20009h 27m
29 Jun 2022 @ 1033 ns2h 41m
29 Jun 2022 @ 075210h 59m
28 Jun 2022 @ 20535h 9m
28 Jun 2022 @ 15445h 2m
28 Jun 2022 @ 10425m 1d 1h 2m
27 Jun 2022 @ 094021m 21h 27m
26 Jun 2022 @ 1213 ie3h 15m
26 Jun 2022 @ 085822m 10h 29m
25 Jun 2022 @ 22292h 7m
25 Jun 2022 @ 20222h 52m
25 Jun 2022 @ 17305h 10m
25 Jun 2022 @ 122034m 22h 31m
24 Jun 2022 @ 134927m 4h 44m
24 Jun 2022 @ 0905>25m < 40m1d 15h 13m
22 Jun 2022 @ 175218h 19m
21 Jun 2022 @ 23332d 4h 52m
19 Jun 2022 @ 184121h 58m
18 Jun 2022 @ 20435h 13m
18 Jun 2022 @ 153041m
18 Jun 2022 @ 14493m 18h 18m
17 Jun 2022 @ 20313h 45m
17 Jun 2022 @ 16461d 4h 4m
16 Jun 2022 @ 1242 ns11m
16 Jun 2022 @ 1231 ns15h 1m
15 Jun 2022 @ 2130 ns1d 5h 18m
14 Jun 2022 @ 16123d 8h 26m
11 Jun 2022 @ 074621m 14h 5m
10 Jun 2022 @ 1741>58m 5h 52m
10 Jun 2022 @ 1149~21m 2h 0m
10 Jun 2022 @ 094918m 2h 21m
10 Jun 2022 @ 0728~38m 13h 33m
09 Jun 2022 @ 1755 ns2d 6h 34m
07 Jun 2022 @ 1121~27m 22h 10m
06 Jun 2022 @ 131118h 44m
05 Jun 2022 @ 1827 ns2d 9m
03 Jun 2022 @ 1818~20m 5h 2m
03 Jun 2022 @ 131613m 5h 13m
03 Jun 2022 @ 0803 ns23h 27m
02 Jun 2022 @ 0836 ns10h 51m
01 Jun 2022 @ 21455d 10h 53m
27 May 2022 @ 1052 ie17h 28m
26 May 2022 @ 1724 ns53m 6h 48m
26 May 2022 @ 1036~36m 1d 21h 5m
24 May 2022 @ 133124m 2d 17h 22m
21 May 2022 @ 20094h 59m
21 May 2022 @ 1510 ns1h 34m
21 May 2022 @ 1336 ns2h 22m
21 May 2022 @ 11142d 21h 46m
18 May 2022 @ 132822m 3h 26m
18 May 2022 @ 100213m 2h 37m
18 May 2022 @ 072521m 5d 11h 3m
12 May 2022 @ 2022 ns4d 10m
08 May 2022 @ 20122.5m 1d 2h 52m
07 May 2022 @ 1720 ie1d 21h 30m
05 May 2022 @ 19501d 3h 41m
04 May 2022 @ 1609 ie4d 19h 55m
29 Apr 2022 @ 2014 ie2d 9h 52m
27 Apr 2022 @ 1022 ns39m
27 Apr 2022 @ 0943 ns2d 18m
25 Apr 2022 @ 09257d 19h 49m
17 Apr 2022 @ 133696d 21h 57m
10 Jan 2022 @ 1439118d 23h 5m
13 Sep 2021 @ 1634 ns~26m 3d 22h 10m
09 Sep 2021 @ 182452m 4h 49m
09 Sep 2021 @ 133518m 2h 1m
09 Sep 2021 @ 1134 ns~10m 51m
09 Sep 2021 @ 1043 ns2h 13m
09 Sep 2021 @ 0830 ns~28m 2d 12h 38m
06 Sep 2021 @ 19522d 7h 10m
04 Sep 2021 @ 1242 ns~30m 1d 2h 4m
03 Sep 2021 @ 1038 ie>16m 14h 39m
02 Sep 2021 @ 1959 ie1d 10h 43m
01 Sep 2021 @ 0916 ie9h 40m
31 Aug 2021 @ 2336 ie4h 48m
31 Aug 2021 @ 184836m 4h 9m
31 Aug 2021 @ 1439<1m 5h 40m
31 Aug 2021 @ 085928m 47m
31 Aug 2021 @ 08122m 1d 19h 27m
29 Aug 2021 @ 124549m 1h 24m
29 Aug 2021 @ 1121 min1m 3d 2h 15m

Interval Statistics

Interval Count100
Min11m
Max118d 23h 5m
Mean3d 3h 59m
Median13h 39m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
22411 08 Jul 2022 @ 1753 --- Tara low splashes
22221 28 Jun 2022 @ 1958 --- Tara low splashes
22076 23 Jun 2022 @ 0525 23 Jun 2022 @ 1535 LynnS Twig did not exhibit any type of eruptive behavior during this time frame.
22070 22 Jun 2022 @ 2145 --- Tara Loud gurgling, no water.
22071 22 Jun 2022 @ 0820 22 Jun 2022 @ 1752 LynnS Twig did not erupt during this time.
22028 18 Jun 2022 @ 1913 18 Jun 2022 @ 1950 Tara Periods if grumbling, starting quiet and getting louder, at: 1913, 1921, 1928, 1937, 1943, 1950
21648 01 Jun 2022 @ 2123 --- Tara noisy gurgling again, lasted ~3m
21647 01 Jun 2022 @ 2114 --- Tara noisy gurgling
21256 12 May 2022 @ 1959 --- Tara more gurgling followed by low splashes
21255 12 May 2022 @ 1955 --- Tara loud gurgling and a few spits
21183 05 May 2022 @ 1920 --- Tara low splashing for about 4 minutes
20794 07 Feb 2022 @ 1350 --- aferrara Pooling water, tall rolling boil
19207 31 Aug 2021 @ 1807 --- Graham Splashed up but didn't erupt.
18756 31 Jul 2021 @ 0636 31 Jul 2021 @ 0639 LynnS Splashing inside tube
18627 24 Jul 2021 @ 0605 --- LynnS Quiet; dry around the crater
18312 08 Jul 2021 @ 0819 --- Barbara Lasseter Playing 2-3 feet from a pool in the crater after a series of splashing episodes of increasing strength
18212 30 Jun 2021 @ 2117 --- William splashed but did not erupt
18205 30 Jun 2021 @ 1540 --- Graham Boiling and splashing at depth.
18206 30 Jun 2021 @ 1529 --- Graham Boiling and splashing at depth.
18207 30 Jun 2021 @ 1420 --- Graham Boiling and splashing at depth.
18209 30 Jun 2021 @ 1010 --- Graham In cone boiling and splashing.
18210 30 Jun 2021 @ 0908 --- Graham In cone boiling and splashing for 3m.
18192 29 Jun 2021 @ 1738 --- Tara splashing low in crater
18014 22 Jun 2021 @ 0747 22 Jun 2021 @ 0813 LynnS Intermittent Splashing inside the tube. Active 0747-0749; 0754; 0802; 0811-0813
17618 09 Jun 2021 @ 1831 --- Graham Noisy gurgling at depth.
17622 09 Jun 2021 @ 0832 --- Graham In cone splashing. Pooling water but did not erupt.
17623 09 Jun 2021 @ 0825 --- Graham In cone splashing.
17624 09 Jun 2021 @ 0738 --- Graham In cone splashing.
17625 09 Jun 2021 @ 0730 --- Graham In cone splashing
17342 01 Jun 2021 @ 1424 --- Graham Gurgling and splashing for 3 to 5m.
17215 27 May 2021 @ 1433 --- JSJ Low splashing in vent at 1433, but no standing water and no proper eruption.
17214 27 May 2021 @ 1409 --- JSJ Splashing in vent at 1409, but no standing water, then done. Repeat at 1410 - done at 1412. No proper eruption.
17213 27 May 2021 @ 1200 --- JSJ Splashing water in vent, but no standing water and no proper eruption. Done at 1200.
15918 29 Aug 2020 @ 1940 --- Tara Water came up about 3/4 of the way with a few splashes, then dropped out of sight
15701 23 Aug 2020 @ 1130 --- aferrara splashing up and out of crater
15124 29 Jul 2020 @ 0717 29 Jul 2020 @ 0725 LynnS Bursting in tube from 0717-0720 and 0724-0725 but did not erupt
14699 20 Jun 2020 @ 0826 20 Jun 2020 @ 1300 LynnS There was no activity during this time period, not even splashing in the tube.
14671 18 Jun 2020 @ 1233 --- LynnS Splashing in tube and above ground for about two minutes; pool didn’t fill.
14670 18 Jun 2020 @ 1219 --- LynnS Splashing inside tube and above ground for about two minutes; pool didn’t fill.
14669 18 Jun 2020 @ 1210 --- LynnS Splashed in tube and above ground about 2 minutes; pool didn’t fill.
14668 18 Jun 2020 @ 1147 --- LynnS Splashing inside tube and above ground for about 5 minutes. Pool didn’t fill.
14519 03 Jun 2020 @ 0549 03 Jun 2020 @ 0551 LynnS Twig bursting inside tube, water droplets did not get above ground level, no water pooled in tube
14478 01 Jun 2020 @ 0550 01 Jun 2020 @ 1700 LynnS Twig did not have any eruptive activity during this time frame, not even any splashing inside the tube.
14479 31 May 2020 @ 0615 31 May 2020 @ 1700 LynnS Twig did not have any type of eruptive activity during this period, not even any splashing inside the tube.
14481 28 May 2020 @ 0830 28 May 2020 @ 1900 LynnS Twig did not have any type of eruptive activity during this time frame, not even any splashing inside the tube.
13557 05 Sep 2019 @ 0545 --- Graham Gurgling after Fountain
13058 05 Aug 2019 @ 1952 --- Stephen_Gemar Appears post eruptive upon arrival. Area around the crater wet.
12943 01 Aug 2019 @ 2130 01 Aug 2019 @ 2305 Tara Quiet for entire observation period.
12911 01 Aug 2019 @ 0641 01 Aug 2019 @ 0748 rbwhitaker No Twig during this time, which includes a Fountain eruption
12908 31 Jul 2019 @ 2335 --- Tara gurgling, no water visible
12879 31 Jul 2019 @ 0700 --- rbwhitaker Empty, dry, small amount of steam coming from vent.
12485 14 Jul 2019 @ 1336 --- jazzknick Water becomes visible with strong splashing
12478 13 Jul 2019 @ 1916 --- Tara Splashing with visible water level for about a minute, then dropped and gurgled for another minute or so. No eruption as of 2140.
12375 05 Jul 2019 @ 0630 05 Jul 2019 @ 1853 LynnS Twig did not erupt during this time.
12082 02 Jul 2019 @ 2314 --- Tara Splashing from a full pool on arrival, did not continue
12041 29 Jun 2019 @ 2050 --- Tara No eruption as of 2050.
12042 29 Jun 2019 @ 1928 29 Jun 2019 @ 1932 Tara Two episodes of splashing within vent, no water level seen. Heard gurgling before and after but it had not erupted as of the end of Fountain.
12018 28 Jun 2019 @ 0450 28 Jun 2019 @ 1430 LynnS Twig did not erupt during this time.
11997 27 Jun 2019 @ 2126 --- Tara Splashed as if it was starting but did not continue, I'd turned my back to look at Spasm but it probably lasted less than 2 minutes.
11847 16 Jun 2019 @ 1715 16 Jun 2019 @ 1905 LynnS Break in data collection
11844 16 Jun 2019 @ 1420 16 Jun 2019 @ 1620 LynnS Break in data collection
11843 16 Jun 2019 @ 0510 16 Jun 2019 @ 1420 LynnS Twig did not erupt during this time.
11391 28 May 2019 @ 1115 --- Graham Erupted for about 1m.
11277 21 May 2019 @ 0550 --- Micah Kipple Looks post eruptive. Heavily steaming with big puddle surrounding it
11214 11 May 2019 @ 1200 --- Tara Wet all around crater, looks like it quit recently
10345 22 Sep 2018 @ 1648 --- Tara Water in east catchbasin. May have been i.e. at 1630, hard to tell from road.
10581 18 Sep 2018 @ 1340 --- Polly Twig splashing
10580 18 Sep 2018 @ 1335 --- Polly Twig bubbling.
10668 09 Aug 2018 @ 1426 09 Aug 2018 @ 1543 JSJ In weak, intermittent spouting at 1426 from no pool; done at 1427. Another eruption at 1526 - sporadic low spouting from no pool; done at 1527. Eruption at 1532 - also sporadic low spouting from no pool; done at 1532. Eruption at 1541 - same type of activity; slight increase in eruptive intensity at 1542; done at 1542 or 1543.
8218 16 May 2018 @ 1417 --- imapayne sputtered but never erupted.
4884 12 Aug 2017 @ 2046 --- Tara Gurgling & splashing at 2046 and 2052.
4464 14 Jul 2017 @ 1627 --- Tara Gurgling just prior to start of Fountain.
4381 30 Jun 2017 @ 2112 --- Tara Splashing and gurgling, lasted less than a minute.
4247 06 Jun 2017 @ 2000 06 Jun 2017 @ 2154 LynnS Twig did not erupt during this time.
4226 03 Jun 2017 @ 1942 --- Tara Twig splashing in vent.
4230 03 Jun 2017 @ 1023 --- Tara Twig splashing in vent.
4231 30 May 2017 @ 2038 --- Tara Twig splashing in vent.
4087 12 May 2017 @ 1241 12 May 2017 @ 1248 Tara Twig gurgled at 1241, then splashed weakly on and off from 1242 to 1248 without ever filling the pool. It was empty from 1248 until the actual eruption started at 1300.
3737 01 Oct 2016 @ 1547 --- Tara Low splashing lasting about a minute.
2322 11 Sep 2015 @ 2030 11 Sep 2015 @ 2155 Micah Kipple No twig during this time period. Including during Fountain.
1603 14 May 2015 @ 1817 14 May 2015 @ 1818 JSJ No Twig eruption during or after Fountain Geyser's 1039 to 1110 eruption. Twig was slightly spitting at 1817 & done at 1818.
1564 06 May 2015 @ 1218 --- Jake splashing up to 2 feet from deep in the vent without filling to erupt
812 27 May 2013 @ 0213 --- Graham No twig by 0213 when I left
213 03 Sep 2011 @ 2003 --- LynnS did not erupt with 2003 Fountain eruption
212 03 Sep 2011 @ 0620 --- LynnS did not erupt with 0620 Fountain
209 28 Aug 2011 @ 1134 --- LynnS Did not erupt with 1134 Fountain eruption
204 08 Jun 2011 @ 0708 --- LynnS did not erupt with 0708ie eruption of Fountain
203 07 Jun 2011 @ 1815 --- LynnS did not erupt with Fountain's 1815 eruption
198 31 May 2011 @ 1318 --- LynnS did not erupt with 1318 eruption of Fountain
197 30 May 2011 @ 0500 --- LynnS did not erupt with 0500ie Fountain
12644 10 May 1994 @ 0000 10 May 1994 @ 2359 JarnoO xx:xx ie
EntrySourceLinkComment
13 Aug 2020 @ 1731 JSJ https://www.youtube.com/watch?v=zX2fOQzKZWo Video showing Twig Geyser erupting in the late afternoon of 13 August 2020.
10 Aug 2017 @ 1722 JSJ https://www.youtube.com/watch?v=c77Ro1u0iyg#t=2m33s Clips 10-18 of this video compilation (time stamp 2:33 to the end) show Twig Geyser's 5:22 to 5:59 PM eruption on 10 August 2017.
09 Jun 2016 @ 1221 JSJ https://www.youtube.com/watch?v=c77Ro1u0iyg#t=1m59s Clip 9 of this video compilation (time stamp 1:59 to 2:32) shows Twig Geyser's 12:21 PM-onward eruption on 9 June 2016.
13 Aug 2015 @ 1900 JSJ https://www.youtube.com/watch?v=c77Ro1u0iyg#t=1m09s Clips 5-8 of this video compilation (time stamp 1:09 to 1:58) show Twig Geyser in eruption from 7:00 PM onward on 13 August 2015.
13 Aug 2015 @ 1335 JSJ https://www.youtube.com/watch?v=c77Ro1u0iyg#t=0m48s Clip 4 of this video compilation (time stamp 0:48 to 1:08) shows Twig Geyser's 1:35 PM-onward eruption on 13 August 2015.
06 Aug 2015 @ 1912 JSJ https://www.youtube.com/watch?v=c77Ro1u0iyg Clips 1-3 of this video compilation (beginning to time stamp 0:47) show Twig Geyser's 7:12 PM-onward eruption on 6 August 2015.
28 Jul 2017 @ 1528 JSJ https://www.flickr.com/photos/jsjgeology/36580518625 Photo (1 of 5) of Twig Geyser's 3:28 to 4:23 PM eruption on 28 July 2017.
10 Aug 2017 @ 1722 JSJ https://www.flickr.com/photos/jsjgeology/36580493605 Photo of Twig Geyser's 5:22 to 5:59 PM eruption on 10 August 2017.
12 Jul 2014 @ 1605 JSJ https://www.flickr.com/photos/jsjgeology/15137601378 Photo of Twig Geyser's 4:05 to 4:44 PM eruption on 12 July 2014.
17 Aug 2014 @ 1659 JSJ https://www.flickr.com/photos/jsjgeology/15489885261 Photo of Twig Geyser's 4:59 PM-onward eruption on 17 August 2014.
13 Aug 2015 @ 1335 JSJ https://www.flickr.com/photos/jsjgeology/21770212668 Photo of Twig Geyser's 1:35 PM-onward eruption on 13 August 2015.
Baseline does not exist.