Last Known Eruption
42d 10h 38m ago

Latest Eruptions

Eruption DurationInterval
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 2d 1h 22m
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
26 Aug 2021 @ 0906About a minute16h 48m
25 Aug 2021 @ 16185m 1h 39m
25 Aug 2021 @ 1439 min1m 3h 37m
25 Aug 2021 @ 1102 min1m 2d 19h 25m
22 Aug 2021 @ 1537 ie8d 4h 33m
14 Aug 2021 @ 110416h 25m
13 Aug 2021 @ 18392h 9m
13 Aug 2021 @ 1630 ie11d 4h 31m
02 Aug 2021 @ 115919h 21m
01 Aug 2021 @ 16387d 20h 54m
24 Jul 2021 @ 19446d 9h 54m
18 Jul 2021 @ 0950 ie9d 22h 42m
08 Jul 2021 @ 1108 ns2h 45m
08 Jul 2021 @ 08237d 21h 4m
30 Jun 2021 @ 1119 ie3h 4m
30 Jun 2021 @ 0815 min<1m 1d 20h 6m
28 Jun 2021 @ 1209295h 16m
28 Jun 2021 @ 0653 ie20h 49m
27 Jun 2021 @ 1004 ie>15m 5d 54m
22 Jun 2021 @ 0910 ie12h 54m
21 Jun 2021 @ 2016 ie6d 22h 51m
14 Jun 2021 @ 21251d 23h 7m
12 Jun 2021 @ 2218~26m 8h 11m
12 Jun 2021 @ 1407 ie4h 16m
12 Jun 2021 @ 09514h 16m
12 Jun 2021 @ 05352d 13h 53m
09 Jun 2021 @ 154229m 4h 48m
09 Jun 2021 @ 105432m 4d 22h 55m
04 Jun 2021 @ 11592d 20h 26m
01 Jun 2021 @ 153331m 4d 21h 10m
27 May 2021 @ 1823~35m 7d 22h 14m
19 May 2021 @ 2009 ns48m
19 May 2021 @ 19218m 57m
19 May 2021 @ 1824 ie3h 44m
19 May 2021 @ 1440 ie1d 6h 38m
18 May 2021 @ 0802 ie1d 13h 54m
16 May 2021 @ 1808~2m 3d 21h 6m
12 May 2021 @ 210220m
12 May 2021 @ 2042~2m 193d 2h 44m
31 Oct 2020 @ 1758 ie3h 58m
31 Oct 2020 @ 14002h 7m
31 Oct 2020 @ 11538d 20h 38m
22 Oct 2020 @ 1515 ie12d 22h 0m
09 Oct 2020 @ 171533d 22h 17m
05 Sep 2020 @ 1858 ie18m
05 Sep 2020 @ 1840 ie5h 20m
05 Sep 2020 @ 1320 ie15h 38m
04 Sep 2020 @ 21426h 5m
04 Sep 2020 @ 15371d 19h 58m
02 Sep 2020 @ 19395h 29m
02 Sep 2020 @ 1410 ie19d 20h 39m
13 Aug 2020 @ 1731 ie2d 3h 58m
11 Aug 2020 @ 1333 ie6d 15h 28m
04 Aug 2020 @ 22053d 13h 24m
01 Aug 2020 @ 08415d 17h 46m
26 Jul 2020 @ 1455~25m 5d 18h 15m
20 Jul 2020 @ 20408m 2d 23h 58m
17 Jul 2020 @ 20421d 12h 31m
16 Jul 2020 @ 081150m 1d 13h 0m
14 Jul 2020 @ 19114d 13h 31m
10 Jul 2020 @ 0540 ie9d 17h 40m
30 Jun 2020 @ 1200 ns~27m 8d 15h 10m
21 Jun 2020 @ 205035m 2d 3h 1m
19 Jun 2020 @ 174911d 2h 15m
08 Jun 2020 @ 1534 ie6d 8h 49m
02 Jun 2020 @ 064512m 240d 20h 3m
05 Oct 2019 @ 1042 ie7d 14h 50m
27 Sep 2019 @ 19521d 6h 53m
26 Sep 2019 @ 125913d 17h 34m
12 Sep 2019 @ 192515m 3d 11h 44m
09 Sep 2019 @ 074139m 1d 22h 24m
07 Sep 2019 @ 0917 min2m 15h 34m
06 Sep 2019 @ 174313m 6h 22m
06 Sep 2019 @ 11211d 13h 11m
04 Sep 2019 @ 2210 ie3d 5h 35m
01 Sep 2019 @ 1635 ie3d 21h 38m
28 Aug 2019 @ 18579m 4d 8h 52m
24 Aug 2019 @ 1005 ns8d 2h 27m
16 Aug 2019 @ 073815h 54m
15 Aug 2019 @ 154427m 21h 48m
14 Aug 2019 @ 17567h 4m
14 Aug 2019 @ 105222h 5m
13 Aug 2019 @ 1247 ns2d 3h 23m

Interval Statistics

Interval Count100
Min18m
Max240d 20h 3m
Mean7d 15h 25m
Median1d 19h 42m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
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.