Last Known Eruption
5h 3m ago
Predicted Next Eruption
Today at 1929 ± 105 minutes

Latest Eruptions

EruptionDurationCodeInterval
30 Mar 2017 @ 1134 wc-1-12h 16m
29 Mar 2017 @ 2318 ? wc---6h 19m
29 Mar 2017 @ 1659 wc---6h 25m
29 Mar 2017 @ 1034 wc---7h 23m
29 Mar 2017 @ 0311 wc---6h 29m
28 Mar 2017 @ 2042 wc---7h 11m
28 Mar 2017 @ 1331 wc-1-6h 33m
28 Mar 2017 @ 0658 wc---12h 59m
27 Mar 2017 @ 1759 ie wc-1-6h 31m
27 Mar 2017 @ 1128 ns wc---7h 0m
27 Mar 2017 @ 0428 ? wc---6h 25m
26 Mar 2017 @ 2203 wc---6h 21m
26 Mar 2017 @ 1542 wc-2-6h 34m
26 Mar 2017 @ 0908 wc---6h 14m
26 Mar 2017 @ 0254 wc---5h 58m
25 Mar 2017 @ 2056 wc---6h 17m
25 Mar 2017 @ 1439 wc-1-7h 16m
25 Mar 2017 @ 0723 wc---6h 19m
25 Mar 2017 @ 0104 wc---6h 14m
24 Mar 2017 @ 1850 wc---6h 53m
24 Mar 2017 @ 1157 wc~13.75m -2-12h 3m
23 Mar 2017 @ 2354 wc---6h 39m
23 Mar 2017 @ 1715 wc---6h 33m
23 Mar 2017 @ 1042 wc---17h 59m
22 Mar 2017 @ 1643 wc---6h 21m
22 Mar 2017 @ 1022 ie wc-1-18h 28m
21 Mar 2017 @ 1554 wc-1-1d 35m
20 Mar 2017 @ 1519 ie wc---6h 22m
20 Mar 2017 @ 0857 wc---6h 17m
20 Mar 2017 @ 0240 wc-2-7h 16m
19 Mar 2017 @ 1924 wc---6h 13m
19 Mar 2017 @ 1311 wc-1-7h 10m
19 Mar 2017 @ 0601 wc---13h 14m
18 Mar 2017 @ 1647 wc-2-6h 22m
18 Mar 2017 @ 1025 wc-2-7h 20m
18 Mar 2017 @ 0305 wc-2-13h 7m
17 Mar 2017 @ 1358 wc-2-6h 23m
17 Mar 2017 @ 0735 wc-1-6h 43m
17 Mar 2017 @ 0052 wc-2-7h 1m
16 Mar 2017 @ 1751 wc-1-6h 37m
16 Mar 2017 @ 1114 wc---6h 11m
16 Mar 2017 @ 0503 wc-1-6h 26m
15 Mar 2017 @ 2237 ? wc---7h 2m
15 Mar 2017 @ 1535 wc-1-6h 22m
15 Mar 2017 @ 0913 wc---6h 27m
15 Mar 2017 @ 0246 wc-1-6h 21m
14 Mar 2017 @ 2025 wc---8h 11m
14 Mar 2017 @ 1214 wc-1-6h 54m
14 Mar 2017 @ 0520 wc-1-7h 2m
13 Mar 2017 @ 2218 wc-2-6h 52m
13 Mar 2017 @ 1526 wc-2-9h 10m
13 Mar 2017 @ 0616 wc---6h 13m
13 Mar 2017 @ 0003 wc---7h 3m
12 Mar 2017 @ 1700 wc---6h 37m
12 Mar 2017 @ 1023---6h 55m
12 Mar 2017 @ 0328 wc~12m -2-8h 16m
11 Mar 2017 @ 1812 wc---6h 18m
11 Mar 2017 @ 1154 ns wc-1-7h 24m
11 Mar 2017 @ 0430 wc---6h 31m
10 Mar 2017 @ 2159 wc---6h 28m
10 Mar 2017 @ 1531 wc---7h 5m
10 Mar 2017 @ 0826 wc---6h 38m
10 Mar 2017 @ 0148 wc---6h 37m
09 Mar 2017 @ 1911 wc---7h 53m
09 Mar 2017 @ 1118 wc-2-8h 11m
09 Mar 2017 @ 0307 wc---6h 6m
08 Mar 2017 @ 2101 wc-2-6h 44m
08 Mar 2017 @ 1417 ie wc---7h 0m
08 Mar 2017 @ 0717 ie wc---15h 20m
07 Mar 2017 @ 1557 wc-1-10h 19m
07 Mar 2017 @ 0538 wc---13h 49m
06 Mar 2017 @ 1549 wc10m -1-7h 58m
06 Mar 2017 @ 0751 E---6h 9m
06 Mar 2017 @ 0142 E---7h 6m
05 Mar 2017 @ 1836 ie wc---6h 34m
05 Mar 2017 @ 1202 ie wc---7h 0m
05 Mar 2017 @ 0502 wc---6h 23m
04 Mar 2017 @ 2239 wc---6h 18m
04 Mar 2017 @ 1621 wc---8h 28m
04 Mar 2017 @ 0753 wc---14h 8m
03 Mar 2017 @ 1745 wc-2-6h 38m
03 Mar 2017 @ 1107 wc-2-6h 52m
03 Mar 2017 @ 0415 wc---6h 11m
02 Mar 2017 @ 2204 wc-2-7h 40m
02 Mar 2017 @ 1424 wc-3-10h 9m
02 Mar 2017 @ 0415 wc---8h 3m
01 Mar 2017 @ 2012 wc---6h 56m
01 Mar 2017 @ 1316 wc-2-9h 20m
01 Mar 2017 @ 0356 wc---6h 58m
28 Feb 2017 @ 2058 wc---9h 29m
28 Feb 2017 @ 1129 wc---7h 7m
28 Feb 2017 @ 0422 wc---7h 11m
27 Feb 2017 @ 2111 wc---7h 12m
27 Feb 2017 @ 1359 wc---6h 19m
27 Feb 2017 @ 0740 wc---7h 29m
27 Feb 2017 @ 0011 wc---6h 4m
26 Feb 2017 @ 1807T1Q7h 11m
26 Feb 2017 @ 1056 wc-1-9h 32m
26 Feb 2017 @ 0124 wc---7h 35m
25 Feb 2017 @ 1749G2C8h 54m

Interval Statistics

Interval Count100
Min5h 58m
Max1d 35m
Mean7h 56m
Median6h 55m
Grand-Specific
StartEqual 1G/1T
Max Bursts3
Mean Bursts1.53
Median Bursts1.5
EndEqual 1C/1Q

Latest Notes

Note IDStart TimeEnd TimeEntrantNote
3957 27 Feb 2017 @ 0740 --- vw Large steam plume. Timing for Grand eruption consistent. Unable to to see water due to steam/fog. Video review may confirm eruption.
3955 20 Feb 2017 @ 0831 --- WillBoekel has not reached overflow yet
3954 19 Feb 2017 @ 1030 --- WillBoekel entered overflow in the last hour
3947 15 Feb 2017 @ 0758 --- vw Very large steam plume in Grand area. Unable to verify as Grand due to ground fog, but size and duration suggest Grand eruption.
3945 10 Feb 2017 @ 0622 --- novakg Possible Grand eruption. Very difficult to tell on webcam.
3935 29 Jan 2017 @ 0721 --- Graham Empty. Turban and Vent ie
3933 28 Jan 2017 @ 0737 --- Graham Empty gurgling and steaming
3932 27 Jan 2017 @ 0740 --- Graham Empty and quiet
3917 23 Jan 2017 @ 0720 --- Graham Post eruptive
3916 23 Jan 2017 @ 0656 --- vw Very large steam plum when I opened window. Too dark and steamy to see clearly. Video review would be helpful.
3901 24 Dec 2016 @ 1747 --- Betty Steam cloud in Grand area, so it possibly went. Hard to tell in the dim light and vanishing visibility.
3877 23 Nov 2016 @ 0820 --- vw Very large steam plume, but I was unable to see water during approx. 10m of heavy steam. Too uncertain to log as an eruption. Review of video may reveal better determination.
3862 06 Nov 2016 @ 0824 --- WillBoekel pool pretty full but not in overflow.
3861 06 Nov 2016 @ 0625 --- Graham Big steam cloud from Grand or Oblong. Not sure which.
3800 23 Oct 2016 @ 1301 --- Janet White Water in Grand but still a ways to overflow
3774 10 Oct 2016 @ 0939 --- ACarlson Sorry. No E time. Logger is not working.
3764 09 Oct 2016 @ 0756 --- SteveO Grand is empty
3732 01 Oct 2016 @ 0805 --- bhoppe Pool was in overflow, but was quite low during Turban eruption.
3717 26 Sep 2016 @ 0722 --- Kitt B Grand 0722 ie? hearing it from Beehive overlook
3714 25 Sep 2016 @ 0551 --- Betty Steam cloud in the right area, but it is too dark to be sure
3690 20 Sep 2016 @ 0755 --- JimS First water came into the pool.
3687 19 Sep 2016 @ 0640 --- JimS Pool in overflow.
3682 17 Sep 2016 @ 2242 --- ARoe Left Grand. Had not erupted yet.
3675 16 Sep 2016 @ 1505 --- Devin C. At 1500 the pool was full and waving. At 1502 Grand started splashing and doming about four times to 1-4 feet tall. It then died. Pool dropped and turban was at 1507.
3659 14 Sep 2016 @ 0727 --- JimS Pool in overflow at 727 when I returned from beehive.
3658 14 Sep 2016 @ 0659 --- JimS Almost in overflow at 0659.
3650 12 Sep 2016 @ 0701 --- JimS Already in overflow at 0701.
3644 11 Sep 2016 @ 0826 --- JimS Overflow started at 0826.
3643 11 Sep 2016 @ 0714 --- JimS Below overflow at 0714.
3613 07 Sep 2016 @ 0629 --- JimS Already in overflow when I arrived at 0629.
3607 06 Sep 2016 @ 0636 --- JimS Already in overflow when I arrived at 0636.
3602 05 Sep 2016 @ 0640 --- JimS Pool was already in overflow when I arrived at 0640.
3598 04 Sep 2016 @ 0628 --- JimS Pool empty. Turban and Vent quiet at 0628.
3594 02 Sep 2016 @ 0046 --- DGInc Might've erupted. Visible steam for about 10 to 11 minutes.
3584 01 Sep 2016 @ 0530 01 Sep 2016 @ 0630 JimS Pool empty and Vent and Turban quiet at 0530. First water at 0630.
3588 01 Sep 2016 @ 0435 --- DGInc Might've erupted
3585 31 Aug 2016 @ 2203 --- DGInc Might've erupted. 2204 is also possible.
3577 31 Aug 2016 @ 0528 --- JimS In overflow at 0528.
3574 30 Aug 2016 @ 0538 --- JimS Pool in overflow.
3569 29 Aug 2016 @ 0615 --- JimS Empty. Turban ie but no Vent.
3571 29 Aug 2016 @ 0411 --- DGInc Might've erupted. Duration was approximately 10 minutes
3527 22 Aug 2016 @ 1034 --- udo 11 minutes into Turban cycle Grand started full pool having waves.
3509 19 Aug 2016 @ 0626 --- JimS The pool at 0626 looks right for an eruption at about 0326.
3507 19 Aug 2016 @ 0326 --- Betty mentioned Grand ie at 0326
3451 09 Aug 2016 @ 0535 --- JimS Pool empty. Vent and Turban quiet.
3404 02 Aug 2016 @ 0452 --- DGInc Might've been in eruption.
3334 21 Jul 2016 @ 0610 --- JimS Overflow started 0610.
3311 18 Jul 2016 @ 0538 --- JimS Overflow from pool started at 0538.
3288 11 Jul 2016 @ 0551 --- JimS Pool in overflow at 0551. Possibly start of overflow.
3289 11 Jul 2016 @ 0043 --- DGInc MAY have erupted. Oblong is also a possibility. Due to the blurriness of the webcam it isn't visible as good as I would've liked, but it looked like 9 to 10 minutes. Maybe an E-time wouldn't be that bad to have though...
3287 11 Jul 2016 @ 0010 --- AndrewW Left at 0010. No eruption yet, left on good pool that did not produce eruption. Great overflow at early at 12 minute mark, dropped at 16 minute mark. Ridges when turban erupted. Previous two fills were poor.
3281 10 Jul 2016 @ 0542 --- JimS Pool in overflow.
3283 10 Jul 2016 @ 0012 --- DGInc May have erupted. Duration was about 10 minutes
3267 09 Jul 2016 @ 0520 --- JimS Pool already in overflow at 0520.
3269 09 Jul 2016 @ 0036 --- DGInc May have erupted. Duration was about 10 minutes, even though it is really hard to see (fancy 360p video quality)
3254 08 Jul 2016 @ 0538 --- JimS Overflow from the pool started 0538.
3256 08 Jul 2016 @ 0056 --- DGInc May have erupted. Last visible steam was about 10 to 11 minutes after noticing it.
3234 07 Jul 2016 @ 0514 --- JimS Pool empty. Vent and Turban quiet.
3222 06 Jul 2016 @ 0111 --- DGInc Might have erupted at that time. Due to the blurriness it is almost unseeable. Duration was about 10 to 11 minutes.
3209 05 Jul 2016 @ 0524 --- JimS Pool empty. Vent and Turban quiet.
3187 03 Jul 2016 @ 0500 --- Graham In overflow.
3163 01 Jul 2016 @ 0530 --- JimS Pool in overflow at 0530.
3135 26 Jun 2016 @ 0247 --- DaveM Appeared to be post eruptive at 0247 when web camera restarted
3133 25 Jun 2016 @ 0601 --- JimS Start of overflow.
3132 25 Jun 2016 @ 0521 --- JimS Pool below overflow.
3130 24 Jun 2016 @ 0214 24 Jun 2016 @ 0246 DGInc May have erupted during the nightly reset of the webcam. Some steam was visible in that area (maybe Turban and Vent continued until 0323?) and I haven't seen a Grand before or after the interuption.
3083 17 Jun 2016 @ 0511 --- JimS Pool in overflow at 0511.
3077 16 Jun 2016 @ 0533 --- JimS Pool in overflow, Turban ie at 0533.
3055 12 Jun 2016 @ 0512 --- JimS Pool in overflow, no eruption yet.
3045 11 Jun 2016 @ 0508 --- JimS Some water in pool but well below overflow.
3033 10 Jun 2016 @ 0506 --- JimS Pool empty, Turban ie.
3016 09 Jun 2016 @ 0545 --- JimS First ? water into the pool at 0545.
3015 09 Jun 2016 @ 0504 --- JimS Pool empty, Vent and Turban quiet.
3003 07 Jun 2016 @ 0117 --- DGInc May have erupted @ 0117
2989 06 Jun 2016 @ 0530 --- JimS First ? water came into the pool.
2987 06 Jun 2016 @ 0515 --- JimS Pool empty, Vent and Turban quiet.
2969 05 Jun 2016 @ 0519 --- JimS First ? water into three pool at 0519.
2968 05 Jun 2016 @ 0515 --- JimS Pool empty, Turban and Vent quiet.
2944 02 Jun 2016 @ 0518 --- JimS Pool in overflow on my arrival at 0518.
2930 01 Jun 2016 @ 0524 --- JimS First ? water entering pool at 0524.
2929 01 Jun 2016 @ 0509 --- JimS Pool empty. Turban alone ie.
2932 01 Jun 2016 @ 0359 --- DGInc May have erupted at 0359. Steam cloud was visible on the webcam captures. Duration was about 10 minutes. EDIT: it was apparently Oblong
2924 31 May 2016 @ 0521 --- JimS In overflow at 0521.
2919 30 May 2016 @ 0601 --- JimS Start of overflow from pool at 0601.
2915 29 May 2016 @ 0520 29 May 2016 @ 0604 JimS Vent and Turban ie at 0520. Both ended at 0604.
2912 29 May 2016 @ 0401 --- Suzanne No eruption as of 0401.
2895 26 May 2016 @ 0520 --- JimS Pool empty. Vent and Turban quiet.
2888 25 May 2016 @ 0523 --- JimS Pool empty. Vent and Turban quiet.
2868 21 May 2016 @ 2143 --- DaveM Grand erupted. But since "eyes in the basin are most often more reliable than eyes through the webcam" I hope someone in the basin saw the eruption.
2852 18 May 2016 @ 0712 --- JimS Start of overflow from pool at 0712.
2850 17 May 2016 @ 0535 --- JimS Post eruption with Turban and Vent ie.
2825 09 May 2016 @ 0718 --- JimS First overflow from pool at 0718.
2824 09 May 2016 @ 0554 --- JimS Small amount of water visible in pool , Turban ie.
2705 07 Mar 2016 @ 0539 --- DGInc Possibly post-eruptive @ 0539
2696 22 Feb 2016 @ 0555 --- DGInc Grand possibly ie. Steam cloud was bigger than normal and was still there at 0602.
2687 17 Feb 2016 @ 0540 --- DGInc Point of reference for DaveM when he watches the webcam captures: Grand possibly ie at 0540. Stripe of light in the background is interrupted by a steam cloud at Grand area.
2673 11 Feb 2016 @ 1405 --- WillBoekel first water in pool
2666 24 Jan 2016 @ 0255 --- DaveM Post eruptive when webcam came back on. Erupted sometime between 0150 and 0222.
2630 21 Dec 2015 @ 1235 --- Tara Vent and Turban i.e., Grand post-eruptive
2584 26 Oct 2015 @ 1020 --- ACarlson Post-eruptive at 10:20 AM
EntrySourceLinkComment
08 Jun 2016 @ 1409 JSJ https://www.flickr.com/photos/jsjgeology/31182392056 Thermal image (1 of 8) of Grand Geyser's 2:09 to 2:20 PM eruption on 8 June 2016.
08 Jun 2016 @ 1409 JSJ https://www.flickr.com/photos/jsjgeology/31182537916 Photo (1 of 12) of Grand Geyser's 2:09 to 2:20 PM eruption on 8 June 2016.
11 Aug 2016 @ 1454 JSJ https://www.flickr.com/photos/jsjgeology/29895281572 Photo (1 of 12) of Grand Geyser's 2:54 to 3:06 PM eruption on 11 August 2016.
15 Aug 2015 @ 1057 JSJ https://www.youtube.com/watch?v=5oFebRTTHA4#t=13m58s Clips 27-31 of this video compilation (time stamp 13:58 to the end) show Grand Geyser's 10:57 to 11:09 AM eruption on 15 August 2015.
07 Aug 2015 @ 1945 JSJ https://www.youtube.com/watch?v=5oFebRTTHA4#t=12m00s Clips 20-26 of this video compilation (time stamp 12:00 to 13:58) show Grand Geyser's 7:45 to 7:56 PM eruption on 7 August 2015.
06 Jul 2015 @ 1435 JSJ https://www.youtube.com/watch?v=5oFebRTTHA4#t=11m27s Clips 17-19 of this video compilation (time stamp 11:27 to 12:00) show Grand Geyser's 2:35 to 2:46 PM eruption on 6 July 2015.
20 May 2015 @ 1927 JSJ https://www.youtube.com/watch?v=5oFebRTTHA4#t=5m26s Clips 13-16 of this video compilation (time stamp 5:25 to 11:27) show Grand Geyser's 7:27 to 7:40 PM eruption on 20 May 2015.
18 May 2015 @ 1639 JSJ https://www.youtube.com/watch?v=5oFebRTTHA4 Clips 1-8 of this video compilation (time stamp 0:00 to 4:17) show Grand Geyser's 4:39 to 4:49 PM eruption on 18 May 2015.
04 Sep 2002 @ 1213 JSJ https://www.youtube.com/watch?v=oW-EWQ60ZwI Video of Grand Geyser's 12:10 PM eruption on 4 September 2002 - 3 bursts + afterburst.
28 Aug 2013 @ 1731 JSJ https://www.youtube.com/watch?v=Myae9uC9qp8 Video by Micah Kipple of the 2nd burst of Grand Geyser's late afternoon eruption on 28 August 2013.
28 Aug 2013 @ 1731 JSJ https://www.youtube.com/watch?v=mtjkvtfaPN8 Video by Micah Kipple of the initiation of Grand Geyser's 5:30 PM eruption on 28 August 2013.
05 Jul 2013 @ 0849 JSJ https://www.youtube.com/watch?v=kYDQyexnLfI Video by Micah Kipple of the 5 July 2013 morning eruption of Grand Geyser.
28 Jun 2013 @ 0834 JSJ https://www.youtube.com/watch?v=MZjEKbivLug Video by Micah Kipple of the 28 June 2013 morning eruption of Grand Geyser.
06 Aug 2013 @ 1307 Micah Kipple https://www.flickr.com/photos/128128779@N05/15606907148 flickr
27 Jul 2014 @ 1538 Micah Kipple https://www.flickr.com/photos/joshy55013/15630773769 flickr
24 Sep 2014 @ 1256 Micah Kipple https://www.flickr.com/photos/126760153@N03/15828712802 flickr
20 Sep 2014 @ 1611 Micah Kipple https://www.flickr.com/photos/129696754@N08/15877864399 flickr
10 Jun 2014 @ 1327 Micah Kipple https://www.flickr.com/photos/107465174@N04/15887463047 flickr
28 Dec 2014 @ 1435 Micah Kipple https://www.flickr.com/photos/vambo25/16169556612 flickr
17 Jan 2015 @ 1139 Micah Kipple https://www.flickr.com/photos/bonnerphotographic/16142959918/in/photostream/ Flickr
BaselineDistance (ft)Description
South Side 200Jugwalk south of Grand at the Y junction at Belgian Pool


Facebook Page Google+ Page Android app on Google Play

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

Questions/ Comments contact: webmaster@geysertimes.org

Copyright 2011-2017