Last Known Eruption
147d 5h 51m ago

Latest Eruptions

Eruption DurationInterval
28 Apr 2019 @ 19351d 5h 20m
27 Apr 2019 @ 14155h 52m
27 Apr 2019 @ 0823 ns17h 37m
26 Apr 2019 @ 1446 ns wc5h 55m
26 Apr 2019 @ 0851 ie wc5h 59m
26 Apr 2019 @ 0252 ie wc5h 55m
25 Apr 2019 @ 2057 ns wc11h 26m
25 Apr 2019 @ 0931 ns wc6h 1m
25 Apr 2019 @ 0330 ns wc6h 11m
24 Apr 2019 @ 2119 wc12h 4m
24 Apr 2019 @ 0915 ie wc18h 0m
23 Apr 2019 @ 1515 wc6h 4m
23 Apr 2019 @ 0911 ie wc5h 54m
23 Apr 2019 @ 0317 ie wc5h 54m
22 Apr 2019 @ 2123 wc5h 36m
22 Apr 2019 @ 1547 ie wc6h 9m
22 Apr 2019 @ 0938 ie wc5h 48m
22 Apr 2019 @ 0350 ie wc11h 52m
21 Apr 2019 @ 1558 ns wc5h 56m
21 Apr 2019 @ 1002 ie wc6h 22m
21 Apr 2019 @ 0340 ns wc6h 9m
20 Apr 2019 @ 2131 ns wc6h 7m
20 Apr 2019 @ 15246h 1m
20 Apr 2019 @ 09236h 5m
20 Apr 2019 @ 0318 ns wc5h 36m
19 Apr 2019 @ 2142 ns wc6h 5m
19 Apr 2019 @ 1537 ns5h 45m
19 Apr 2019 @ 0952 ie wc5h 50m
19 Apr 2019 @ 0402 wc5h 48m
18 Apr 2019 @ 2214 ns wc2s 5h 39m
18 Apr 2019 @ 1635 ie wc5h 45m
18 Apr 2019 @ 10501d 7h 0m
17 Apr 2019 @ 0350 ns wc6h 17m
16 Apr 2019 @ 2133 ns wc6h 14m
16 Apr 2019 @ 1519 ie wc11h 1m
16 Apr 2019 @ 0418 ns wc6h 4m
15 Apr 2019 @ 2214 wc5h 48m
15 Apr 2019 @ 1626 ns wc6h 8m
15 Apr 2019 @ 1018 ie wc6h 9m
15 Apr 2019 @ 0409 ns wc17h 2m
14 Apr 2019 @ 1107 wc17h 5m
13 Apr 2019 @ 1802 ie wc18h 46m
12 Apr 2019 @ 2316 ns wc6h 6m
12 Apr 2019 @ 1710 wc5h 37m
12 Apr 2019 @ 1133 ns wc2d 18h 58m
09 Apr 2019 @ 1635 ns wc1d 23h 53m
07 Apr 2019 @ 1642 wc10h 43m
07 Apr 2019 @ 0559 ie wc1d 12h 25m
05 Apr 2019 @ 1734 ns wc6h 22m
05 Apr 2019 @ 1112 ns wc18h 19m
04 Apr 2019 @ 1653 wc6h 8m
04 Apr 2019 @ 1045 ns wc18h 38m
03 Apr 2019 @ 1607 ie wc6h 7m
03 Apr 2019 @ 1000 ie wc17h 57m
02 Apr 2019 @ 1603 ns wc6h 12m
02 Apr 2019 @ 0951 ns wc17h 7m
01 Apr 2019 @ 1644 ns wc6h 14m
01 Apr 2019 @ 1030 ie wc12h 15m
31 Mar 2019 @ 2215 wc6h 2m
31 Mar 2019 @ 1613 wc6h 2m
31 Mar 2019 @ 1011 wc6h 7m
31 Mar 2019 @ 0404 ? ns wc5h 57m
30 Mar 2019 @ 2207 wc6h 14m
30 Mar 2019 @ 1553 ie wc5h 58m
30 Mar 2019 @ 0955 wc1d 1h 0m
29 Mar 2019 @ 0855 wc6h 10m
29 Mar 2019 @ 0245 ns wc6h 10m
28 Mar 2019 @ 2035 ie wc6h 5m
28 Mar 2019 @ 1430 ns wc6h 15m
28 Mar 2019 @ 0815 ns wc12h 19m
27 Mar 2019 @ 1956 ns wc6h 1m
27 Mar 2019 @ 1355 ns wc6h 15m
27 Mar 2019 @ 0740 ns wc12h 28m
26 Mar 2019 @ 1912 ie wc12h 13m
26 Mar 2019 @ 0659 wc12h 17m
25 Mar 2019 @ 1842 ns wc6h 11m
25 Mar 2019 @ 1231 ns wc6h 16m
25 Mar 2019 @ 0615 wc1d 13h 16m
23 Mar 2019 @ 1659 ie wc6h 5m
23 Mar 2019 @ 1054 ns wc6h 27m
23 Mar 2019 @ 0427 ns wc12h 3m
22 Mar 2019 @ 1624 ie wc5h 59m
22 Mar 2019 @ 1025 ie wc6h 11m
22 Mar 2019 @ 0414 ns wc6h 4m
21 Mar 2019 @ 2210 ns wc11h 54m
21 Mar 2019 @ 1016 ie wc6h 8m
21 Mar 2019 @ 0408 ns wc6h 9m
20 Mar 2019 @ 2159 wc12h 18m
20 Mar 2019 @ 0941 ns wc6h 3m
20 Mar 2019 @ 0338 ns wc6h 4m
19 Mar 2019 @ 2134 ns wc6h 8m
19 Mar 2019 @ 15266h 1m
19 Mar 2019 @ 0925 ns wc6h 5m
19 Mar 2019 @ 0320 ns wc6h 18m
18 Mar 2019 @ 2102 ns wc6h 9m
18 Mar 2019 @ 1453 ie6h 4m
18 Mar 2019 @ 0849 ns wc6h 16m
18 Mar 2019 @ 0233 ns wc6h 4m
17 Mar 2019 @ 2029 ns wc6h 17m
17 Mar 2019 @ 1412 ns wc5h 52m

Interval Statistics

Interval Count100
Min5h 36m
Max2d 18h 58m
Mean10h 11m
Median6h 9m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
11117 28 Apr 2019 @ 1933 --- ddshepard In overflow
11106 27 Apr 2019 @ 1251 --- rbwhitaker In overflow
10715 04 Nov 2018 @ 0805 --- jkgood In overflow
10661 24 Oct 2018 @ 1751 --- STS NPS prediction of 21:15
10560 05 Oct 2018 @ 0810 --- William No water visible in cone.
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 --- JarnoO 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 --- JarnoO overflow
6370 22 Sep 1992 @ 1214 22 Sep 1992 @ 1215 JarnoO [Either 1214 or 1215, write-over unclear]
4926 23 Jan 1992 @ 1615 --- JarnoO over 1615 vr
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.


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