Last Known Eruption
3h 3m ago
Predicted Next Eruption
Today at 1823 ± 24 minutes

Latest Eruptions

Eruption DurationInterval
24 Sep 2018 @ 1153 wc12h 49m
23 Sep 2018 @ 2304 wc1d 6h 5m
22 Sep 2018 @ 1659 ie6h 4m
22 Sep 2018 @ 1055 ? A11h 53m
21 Sep 2018 @ 2302 ns wc5h 42m
21 Sep 2018 @ 1720 ns5h 57m
21 Sep 2018 @ 112312h 39m
20 Sep 2018 @ 2244 wc6h 25m
20 Sep 2018 @ 16196h 18m
20 Sep 2018 @ 100112h 35m
19 Sep 2018 @ 2126 wc6h 22m
19 Sep 2018 @ 15046h 17m
19 Sep 2018 @ 0847 wc1d 1h 10m
18 Sep 2018 @ 0737 wc11h 36m
17 Sep 2018 @ 2001 ie5h 48m
17 Sep 2018 @ 14135h 48m
17 Sep 2018 @ 0825 wc12h 42m
16 Sep 2018 @ 1943 ns6h 13m
16 Sep 2018 @ 13306h 21m
16 Sep 2018 @ 070911h 51m
15 Sep 2018 @ 19185h 46m
15 Sep 2018 @ 1332 ie6h 12m
15 Sep 2018 @ 0720 wc11h 30m
14 Sep 2018 @ 1950 ie11h 32m
14 Sep 2018 @ 0818 ie wc12h 22m
13 Sep 2018 @ 1956 wc6h 21m
13 Sep 2018 @ 13356h 22m
13 Sep 2018 @ 0713 wc11h 18m
12 Sep 2018 @ 1955 ie6h 1m
12 Sep 2018 @ 1354 ie5h 53m
12 Sep 2018 @ 0801 wc12h 38m
11 Sep 2018 @ 1923 ns6h 8m
11 Sep 2018 @ 1315 ie5h 53m
11 Sep 2018 @ 072212h 9m
10 Sep 2018 @ 19136h 18m
10 Sep 2018 @ 12556h 15m
10 Sep 2018 @ 0640 wc18h 21m
09 Sep 2018 @ 12195h 54m
09 Sep 2018 @ 0625 ie wc11h 42m
08 Sep 2018 @ 18436h 22m
08 Sep 2018 @ 12216h 0m
08 Sep 2018 @ 0621 wc12h 9m
07 Sep 2018 @ 1812 ie12h 37m
07 Sep 2018 @ 0535 ie11h 47m
06 Sep 2018 @ 17486h 21m
06 Sep 2018 @ 112718h 32m
05 Sep 2018 @ 1655 ns5h 41m
05 Sep 2018 @ 1114 ns5h 59m
05 Sep 2018 @ 0515 wc11h 43m
04 Sep 2018 @ 17326h 24m
04 Sep 2018 @ 11086h 19m
04 Sep 2018 @ 0449 wc12h 43m
03 Sep 2018 @ 16065h 48m
03 Sep 2018 @ 10186h 12m
03 Sep 2018 @ 0406 wc12h 8m
02 Sep 2018 @ 15586h 18m
02 Sep 2018 @ 09406h 20m
02 Sep 2018 @ 0320 wc11h 42m
01 Sep 2018 @ 15386h 17m
01 Sep 2018 @ 09215h 50m
01 Sep 2018 @ 0331 ie12h 5m
31 Aug 2018 @ 15266h 16m
31 Aug 2018 @ 09105h 52m
31 Aug 2018 @ 0318 wc6h 17m
30 Aug 2018 @ 2101 wc6h 15m
30 Aug 2018 @ 14465h 45m
30 Aug 2018 @ 0901 wc5h 54m
30 Aug 2018 @ 0307 wc12h 34m
29 Aug 2018 @ 14335h 53m
29 Aug 2018 @ 08405h 50m
29 Aug 2018 @ 0250 wc5h 52m
28 Aug 2018 @ 2058 wc6h 7m
28 Aug 2018 @ 1451 ie5h 54m
28 Aug 2018 @ 085718h 1m
27 Aug 2018 @ 14566h 13m
27 Aug 2018 @ 084318h 20m
26 Aug 2018 @ 14236h 15m
26 Aug 2018 @ 08086h 16m
26 Aug 2018 @ 0152 wc6h 14m
25 Aug 2018 @ 1938 ie5h 33m
25 Aug 2018 @ 14055h 47m
25 Aug 2018 @ 081818h 0m
24 Aug 2018 @ 14186h 22m
24 Aug 2018 @ 0756 A6h 20m
24 Aug 2018 @ 0136 wc6h 20m
23 Aug 2018 @ 19166h 14m
23 Aug 2018 @ 13026h 15m
23 Aug 2018 @ 0647 ie wc6h 8m
23 Aug 2018 @ 0039 wc5h 50m
22 Aug 2018 @ 1849 ie6h 26m
22 Aug 2018 @ 122311h 36m
22 Aug 2018 @ 0047 wc12h 31m
21 Aug 2018 @ 12165h 26m
21 Aug 2018 @ 0650 ie6h 15m
21 Aug 2018 @ 0035 wc18h 51m
20 Aug 2018 @ 0544 wc6h 15m
19 Aug 2018 @ 2329 ie wc6h 25m
19 Aug 2018 @ 17046h 12m
19 Aug 2018 @ 1052 wc17h 35m
18 Aug 2018 @ 1717 ns1d 12m

Interval Statistics

Interval Count100
Min5h 26m
Max1d 6h 5m
Mean9h 4m
Median6h 18m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
10342 22 Sep 2018 @ 0900 --- Minafuku Not in overflow as far as I can tell from the bike path...
10303 20 Sep 2018 @ 0807 --- STS NPS prediction of 0945
10057 06 Sep 2018 @ 1039 --- mswindle Not in overflow as of 1 hour ago, was in overflow as of 15 minutes ago. VC posting prediction of 1130.
9429 03 Aug 2018 @ 0958 --- rbwhitaker Currently in overflow
7874 23 Jan 2018 @ 0830 --- DaveM The two times posted (0315 and 0830) don't quite work. Both produced big steam clouds but the interval is too short.
7689 04 Oct 2017 @ 1125 --- Kitt B Riverside is in weak overflow
7536 29 Sep 2017 @ 0750 --- Kitt B heavy steam and low thruming sound -post eruptive
6630 17 Sep 2017 @ 0847 --- JimS First overflow at 0847.
5572 02 Sep 2017 @ 1006 --- JimS Overflow started at 1006.
5515 31 Aug 2017 @ 0630 --- JimS Already in overflow at 0630.
5509 30 Aug 2017 @ 1020 --- Art In overflow
5493 29 Aug 2017 @ 0809 --- JimS Already in overflow at 0809.
5468 28 Aug 2017 @ 0653 --- JimS Already in overflow at 0653.
5400 26 Aug 2017 @ 0804 --- JimS Was on overflow.
5321 25 Aug 2017 @ 0705 --- JimS In overflow at 0705.
5301 24 Aug 2017 @ 0929 --- JimS Overflow started at 0929.
5181 20 Aug 2017 @ 2232 --- Tara Post-eruptive, forced steam
5158 20 Aug 2017 @ 0636 20 Aug 2017 @ 0653 JimS Overflow started between 0636 and 0653.
4925 17 Aug 2017 @ 0627 --- JimS In overflow at 0627.
4881 12 Aug 2017 @ 0624 --- JimS Already in overflow at 0624.
4839 09 Aug 2017 @ 0626 --- JimS Already in overflow at 0626.
4803 05 Aug 2017 @ 0843 --- rbwhitaker Just went into first overflow.
4580 30 Jul 2017 @ 0608 --- JimS In overflow at 0608.
4544 26 Jul 2017 @ 0700 --- JimS In overflow.
4542 26 Jul 2017 @ 0621 --- EmilyW Dead at 0621
4515 23 Jul 2017 @ 0550 --- SteveO In overflow.
4494 19 Jul 2017 @ 0634 --- SteveO Started overflow after 0553 and before 0634.
4384 01 Jul 2017 @ 0825 --- WillBoekel start of overflow
4375 28 Jun 2017 @ 0550 28 Jun 2017 @ 0610 SteveO Started overflow between 0550 & 0610
4363 26 Jun 2017 @ 0711 --- Dave from B Overflow started in last 15 minutes
4201 04 Jun 2017 @ 0836 --- steve Overflow started between 0800 and 0820
4167 01 Jun 2017 @ 0808 --- B**2 Overflow started about 8:00
4118 23 May 2017 @ 0543 --- SteveO In overflow
4033 03 May 2017 @ 1053 --- udo Minor eruptions from upper vent caused main to stop overflowing. Overflow restarted 1056.
4027 02 May 2017 @ 0707 --- JimS In overflow at 0727.
3958 03 Mar 2017 @ 1253 --- WillBoekel Riverside currently in overflow
3902 24 Dec 2016 @ 1550 --- ARoe Quietly steaming. No water.
3842 04 Nov 2016 @ 1226 --- udo Now in overflow
3841 04 Nov 2016 @ 1214 --- udo Not overflowing yet.
3787 15 Oct 2016 @ 1015 --- Kitt B Riverside in over flow, may have just started
3361 25 Jul 2016 @ 0541 --- JimS Overflow started 0541.
3302 14 Jul 2016 @ 0650 --- JimS Overflow started about 0650. Eruption should be about 0830 to 0900.
3258 07 Jul 2016 @ 2140 --- DGInc May have erupted. There was some steam visible at 2140 to 2143 in the Riverside spot, but due to the wind there was no visible steam after that.
2990 06 Jun 2016 @ 0729 --- B**2 Start of overflow.
2685 16 Feb 2016 @ 0930 --- AndreaEide Riverside in overflow ~0930
2672 09 Feb 2016 @ 1526 --- ACarlson Riverside started overflow around 15:25.
2668 02 Feb 2016 @ 0940 --- ACarlson In overflow at 0940
2480 05 Oct 2015 @ 0839 --- cb very quiet. no overflow
2461 03 Oct 2015 @ 0818 --- JimS In overflow at 0818.
2442 30 Sep 2015 @ 0610 --- Jake in. overflow
2077 10 Aug 2015 @ 1139 --- RLJones Dry when I arrived at 1135. Overflow started at 1139
2076 10 Aug 2015 @ 0851 --- EmilyW Quiet and empty at 0851
2015 04 Aug 2015 @ 0656 --- RyanMaurer crater empty. no overflow.
1825 02 Jul 2015 @ 0953 --- DaveM Riverside start was 0730wc but GT is using the in basin 0731ie time as the primary.
1726 12 Jun 2015 @ 0820 --- B**2 Start of overflow!
1140 21 Aug 2014 @ 1129 --- WillBoekel first overflow 1129
1115 25 Jul 2014 @ 0850 --- WillBoekel First overflow 0850
1091 01 Jul 2014 @ 1406 --- WillBoekel First overflow 1406
1060 06 May 2014 @ 1240 --- WillBoekel First overflow 1240
868 05 Sep 2013 @ 1300 --- Graham Jim prediction 1300
622 26 Oct 2012 @ 0940 --- smballou In overflow with boiling at 0940
144 14 Mar 2012 @ 1500 --- ofcarolyn rough 1500 prediction
141 13 Mar 2012 @ 1045 --- ofcarolyn 1045 prediction
126 05 Mar 2012 @ 1330 --- ofcarolyn prediction 1330
125 28 Feb 2012 @ 1415 --- ofcarolyn 1415 prediction
117 22 Feb 2012 @ 0926 --- ofcarolyn overflow 0926 i.e., predicting 1045
605 21 Feb 2012 @ 0933 --- BoekelUpload 933ie overflow
116 21 Feb 2012 @ 0930 --- ofcarolyn overflow i.e. at 0930
112 20 Feb 2012 @ 0945 --- ofcarolyn had not erupted by 0945, we\'re predicting 1600
96 02 Feb 2012 @ 1630 --- Pat Snyder Thanks for the Riverside confirmation this morning. Sigh. No F&M.
94 01 Feb 2012 @ 1100 --- ofcarolyn We\'re not sure about recent overflow times, but are predicting based on an overflow time of 1 1/2 to 2 hours before a Riverside eruption.
93 01 Feb 2012 @ 0909 --- ofcarolyn overflow 0909 n.s.
92 31 Jan 2012 @ 0936 --- ofcarolyn early overflow i.e. at 0936
90 30 Jan 2012 @ 0850 --- ofcarolyn Early overflow at 0850 i.e.
87 24 Jan 2012 @ 0945 --- ofcarolyn overflow i.e. 0945, probably no eruption until past 1000
599 02 Jan 2012 @ 0913 02 Jan 2012 @ 0936 BoekelUpload overflow ie at 0913 and 0936
668 21 Mar 2011 @ 1156 --- BoekelUpload 1156ie in overflow
667 17 Mar 2011 @ 1140 --- BoekelUpload 1140ie in overflow
656 28 Feb 2011 @ 1430 --- BoekelUpload 1430 ie in overflow
654 25 Feb 2011 @ 0940 --- BoekelUpload 0940ie in overflow
637 28 Jan 2011 @ 0940 --- BoekelUpload 0940ie in overflow
633 14 Jan 2011 @ 0836 --- BoekelUpload 0836 ie in overflow
631 12 Jan 2011 @ 0950 --- BoekelUpload 0950 ie in overflow
971 21 Jun 2008 @ 1405 21 Jun 2008 @ 1455 BoekelUpload 14:x5
947 06 Mar 2008 @ 1130 06 Mar 2008 @ 1139 BoekelUpload 11:3x ie wc
946 05 Mar 2008 @ 0940 --- BoekelUpload overflow 9:40 ie
923 21 Jan 2008 @ 1553 --- BoekelUpload overflow 15:53ie
1400 29 Dec 2007 @ 1230 29 Dec 2007 @ 1239 BoekelUpload 12:3x
1399 21 Oct 2007 @ 2053 21 Oct 2007 @ 2353 BoekelUpload 2x:53; vr
1518 10 Oct 2007 @ 1413 --- GeyserTimesNew overflow
1398 29 Apr 2007 @ 0730 29 Apr 2007 @ 0739 BoekelUpload 7:3x ns
1397 18 Feb 2007 @ 0045 18 Feb 2007 @ 2345 BoekelUpload xx:45
7054 16 Oct 1992 @ 0817 --- DGInc overflow
6370 22 Sep 1992 @ 1214 22 Sep 1992 @ 1215 DGInc [Either 1214 or 1215, write-over unclear]
4926 23 Jan 1992 @ 1615 --- DGInc over 1615 vr
4906 07 Jan 1992 @ 1717 --- DGInc after 1717
472 02 Aug 1975 @ 0836 --- BoekelUpload 0836 1st overflow
469 08 May 1975 @ 0852 --- BoekelUpload 0852 not yet
271 27 Jul 1973 @ 1900 27 Jul 1973 @ 1909 BoekelUpload 190X; the digit represented by the X was unreadable
176 08 Feb 1971 @ 1300 --- BoekelUpload overflowing at1300
EntrySourceLinkComment
06 Jun 2018 @ 1346 JSJ https://www.flickr.com/photos/jsjgeology/28208979037 Photo (out of 3) of Riverside Geyser's afternoon eruption on 6 June 2018.
08 Aug 2017 @ 1845 JSJ https://www.flickr.com/photos/jsjgeology/35725848423 Photo (out of 6) of Riverside Geyser's 6:45 PM-onward eruption on 8 August 2017.
02 Jul 2016 @ 1244 JSJ https://www.youtube.com/watch?v=QiSiw1FbPF0 Video compilation of Riverside Geyser's 12:44 PM-onward eruption on 2 July 2016.
03 Jul 2016 @ 1540 JSJ https://www.flickr.com/photos/jsjgeology/28303442506 Photo (1 of 6) of Riverside Geyser's 3:40 PM-onward eruption on 3 July 2016.
02 Jul 2016 @ 1244 JSJ https://www.flickr.com/photos/jsjgeology/27721214383 Photo (1 of 2) of Riverside Geyser's 12:44 PM-onward eruption on 2 July 2016.
08 Jul 2014 @ 1600 JSJ https://www.flickr.com/photos/jsjgeology/15129110278 Photo (1 of 3) of Riverside Geyser erupting at 4:00 PM-onward on 8 July 2014.
04 Aug 2013 @ 1653 JSJ https://www.flickr.com/photos/jsjgeology/13923848943 Photo (first of many) of Riverside Geyser's 4:54 to 5:16 PM eruption on 4 August 2013.
31 May 2013 @ 1528 JSJ https://www.flickr.com/photos/jsjgeology/13923982114 Photo (first of many, plus videos) of Riverside Geyser's 3:28 to 3:49 PM eruption on 31 May 2013.
28 Sep 2015 @ 0428 td http://i57.tinypic.com/1426f41.jpg Riverside?
27 Apr 2015 @ 0709 td http://tinypic.com/m/inx2eh/3 Taken 4/27/15 at 07:14 MT
01 Jul 2009 @ 1145 Micah Kipple https://www.flickr.com/photos/fback2008/16380373861 Flickr
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.