Last Known Eruption
8d 20h 7m ago

Latest Eruptions

Eruption DurationInterval
13 Jun 2018 @ 0858267d 18h 56m
18 Sep 2017 @ 14021h 52m
18 Sep 2017 @ 12102h 6m
18 Sep 2017 @ 10041h 20m
18 Sep 2017 @ 08441h 4m
18 Sep 2017 @ 074017h 21m
17 Sep 2017 @ 14191h 48m
17 Sep 2017 @ 12311h 25m
17 Sep 2017 @ 11062h 23m
17 Sep 2017 @ 08431h 44m
17 Sep 2017 @ 065911h 50m
16 Sep 2017 @ 19098h 9m
16 Sep 2017 @ 11001h 1m
16 Sep 2017 @ 09591h 40m
16 Sep 2017 @ 081922m
16 Sep 2017 @ 075715m 18m
16 Sep 2017 @ 073912m 1h 36m
16 Sep 2017 @ 06031h 4m 1h 2m
16 Sep 2017 @ 050133m 11m
16 Sep 2017 @ 0450 ie13h 50m
15 Sep 2017 @ 15001h 0m
15 Sep 2017 @ 14001h 38m
15 Sep 2017 @ 12226h 29m
15 Sep 2017 @ 05531h 9m
15 Sep 2017 @ 0444 ie13h 14m
14 Sep 2017 @ 1530>30m 1h 32m
14 Sep 2017 @ 135842m 23m
14 Sep 2017 @ 133514m 23m
14 Sep 2017 @ 131214m 25m
14 Sep 2017 @ 124716m 20m
14 Sep 2017 @ 122711m 4h 23m
14 Sep 2017 @ 08041h 11m
14 Sep 2017 @ 065317m
14 Sep 2017 @ 063612m 1h 14m
14 Sep 2017 @ 052245m 27m
14 Sep 2017 @ 0455 ie>23m 12h 10m
13 Sep 2017 @ 16451h1h 3m
13 Sep 2017 @ 1542 ie>34m 5h 59m
13 Sep 2017 @ 09431h 52m
13 Sep 2017 @ 0751>40m 1h 39m
13 Sep 2017 @ 061251m 20m
13 Sep 2017 @ 055210m 10h 6m
12 Sep 2017 @ 19461h 17m
12 Sep 2017 @ 182935m
12 Sep 2017 @ 17542h 50m
12 Sep 2017 @ 150416m 7h 10m
12 Sep 2017 @ 075456m
12 Sep 2017 @ 0658<391h 8m
12 Sep 2017 @ 055034m 14h 58m
11 Sep 2017 @ 145211d 19h 19m
30 Aug 2017 @ 193351m
30 Aug 2017 @ 18422d 3h 34m
28 Aug 2017 @ 15088d 19h 47m
19 Aug 2017 @ 19211h 5m
19 Aug 2017 @ 1816 ie7d 21h 40m
11 Aug 2017 @ 20361h 5m
11 Aug 2017 @ 19312h 45m
11 Aug 2017 @ 164641m
11 Aug 2017 @ 160551m
11 Aug 2017 @ 151450m
11 Aug 2017 @ 142423h 20m
10 Aug 2017 @ 1504 ns1d 41m
09 Aug 2017 @ 142319h 53m
08 Aug 2017 @ 1830~1h 13m 1h 17m
08 Aug 2017 @ 1713~52m 13d 2h 40m
26 Jul 2017 @ 14337d 16h 52m
18 Jul 2017 @ 214138m
18 Jul 2017 @ 210356m
18 Jul 2017 @ 20071h 29m
18 Jul 2017 @ 18381d 4h 9m
17 Jul 2017 @ 142959m
17 Jul 2017 @ 133021h 43m
16 Jul 2017 @ 154737m
16 Jul 2017 @ 151036m
16 Jul 2017 @ 143422m
16 Jul 2017 @ 141217h 20m
15 Jul 2017 @ 20521h 18m
15 Jul 2017 @ 19343h 0m
15 Jul 2017 @ 16341h 14m
15 Jul 2017 @ 15201h 26m
15 Jul 2017 @ 135454m 1d 33m
14 Jul 2017 @ 13215d 17h 8m
08 Jul 2017 @ 201352m
08 Jul 2017 @ 192127m 1h 10m
08 Jul 2017 @ 181145m 1h 40m
08 Jul 2017 @ 16311h 8m 1h 22m
08 Jul 2017 @ 150946m 1h 0m
08 Jul 2017 @ 140933m 1h 6m
08 Jul 2017 @ 130342m 1d 16h 7m
06 Jul 2017 @ 20561h 22m
06 Jul 2017 @ 19341d 4h 17m
05 Jul 2017 @ 15171h 19m
05 Jul 2017 @ 135823h 37m
04 Jul 2017 @ 14211d 1h 28m
03 Jul 2017 @ 125358m
03 Jul 2017 @ 115549m
03 Jul 2017 @ 11061h 3m
03 Jul 2017 @ 10038d 13h 31m
24 Jun 2017 @ 20321h 6m
24 Jun 2017 @ 19269d 6h 16m

Interval Statistics

Interval Count100
Min11m
Max267d 18h 56m
Mean3d 15h 4m
Median1h 25m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
7698 26 Sep 2017 @ 1226 26 Sep 2017 @ 1315 Polly River already off upon arrival. 1227-29 intermittent A splashes. Mortar mostly quiet 1226-1245. 1238 heavy MV steam. 1245 finally a few light fuzz balls BV and then at 48 some in LM. By 1256 thicker splashes BV & LM with MV huff. R on 1257, G 1258, A 1259. Thick water levels (H ~ 1') but bottoming out often.
7697 26 Sep 2017 @ 1043 26 Sep 2017 @ 1057 Polly 1043 BV light spritz; by 1049 BV spritz hitting top of rock. 10:49 R/H on; G on 1052. Pause 1053. 1054 R back on; G lightly on 1057.
6552 16 Sep 2017 @ 1329 16 Sep 2017 @ 1540 RLJones The series of very short cycles returned with 7 cycles ocurring during the 2h 11m of observation. Never was water viewed in MV nor was there any pooling or splashes in BV or LV. HV never exceeded 2 ft. AV was very frequent during entire observation. The short cycles were still in process when left.
6495 16 Sep 2017 @ 1057 16 Sep 2017 @ 1150 Polly Longer cycle with better water levels in Bottom Vent, High, & Gold.
7749 15 Sep 2017 @ 1610 15 Sep 2017 @ 1910 Tara Disorganized short garbage cycles with River off no longer than about 5 minutes at a time.
6360 13 Sep 2017 @ 1354 13 Sep 2017 @ 1409 Polly Last cycle River to River was 15 m. When River turned off at 1404, Angle actually stayed off.
6359 13 Sep 2017 @ 1135 13 Sep 2017 @ 1354 Polly Angle has played much of the day. Cycles have each been over an hour except the last one which was 45 minutes.
2865 21 May 2016 @ 0615 --- JimS Angle on 0631.
2849 15 May 2016 @ 0907 --- RLJones NO eruption yet. Having an organized cycle right now.
7800 06 Sep 2004 @ 1220 06 Sep 2004 @ 1306 Tara Disorganized garbage, Angle constant and River off for only 1-2 minutes at a time.
EntrySourceLinkComment
08 Aug 2017 @ 1830 JSJ https://www.youtube.com/watch?v=HuQxsKHf1rc#t=0m52s Time lapse video of 2 regular cycles of Fan & Mortar Geysers. The 6:30 to 7:43 PM regular cycle starts at time stamp 0:52 in the video.
08 Aug 2017 @ 1713 JSJ https://www.youtube.com/watch?v=HuQxsKHf1rc Time lapse video of 2 regular cycles of Fan & Mortar Geysers. The 5:13 to 6:05 PM regular cycle starts at time stamp 0:01 in the video.
Baseline does not exist.


All data is shown in US/Mountain timezone unless specified otherwise.

GeyserTimes.org is not affiliated with the National Park Service, but it is "for the benefit and enjoyment of the people".

If you have any questions or comments please contact: webmaster@geysertimes.org

Support open geyser data: Patreon Page

© Copyright 2011-2018

Facebook Page Telegram Channel Google+ Page Get it on Google Play Download on the App Store

Google Play and the Google Play logo are trademarks of Google LLC.

Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc., registered in the U.S. and other countries.