Riverside Geyser

Last Known Eruption
52d 54m ago

Latest Eruptions

Eruption DurationInterval
05 May 2022 @ 070026d 15h 36m
08 Apr 2022 @ 1524 ie wc6h 22m
08 Apr 2022 @ 0902 ie wc11h 2m
07 Apr 2022 @ 2200 wc6h 20m
07 Apr 2022 @ 1540 ie wc6h 38m
07 Apr 2022 @ 0902 ns wc6h 42m
07 Apr 2022 @ 0220 wc6h 29m
06 Apr 2022 @ 1951 ie wc12h 40m
06 Apr 2022 @ 0711 ns wc1d 15h 9m
04 Apr 2022 @ 1602 ie wc6h 34m
04 Apr 2022 @ 0928 ie wc6h 25m
04 Apr 2022 @ 0303 ie wc6h 21m
03 Apr 2022 @ 2042 wc6h 19m
03 Apr 2022 @ 1423 wc6h 5m
03 Apr 2022 @ 0818 ie wc6h 46m
03 Apr 2022 @ 0132 wc6h 35m
02 Apr 2022 @ 1857 ie wc6h 31m
02 Apr 2022 @ 12266h 22m
02 Apr 2022 @ 0604 ns wc13h 0m
01 Apr 2022 @ 1704 ie wc6h 28m
01 Apr 2022 @ 1036 ie wc6h 38m
01 Apr 2022 @ 0358 ns wc1d 7h 56m
30 Mar 2022 @ 2002 ie wc6h 14m
30 Mar 2022 @ 1348 wc6h 27m
30 Mar 2022 @ 0721 ns wc6h 24m
30 Mar 2022 @ 0057 wc6h 35m
29 Mar 2022 @ 1822 ie wc1d 1h 46m
28 Mar 2022 @ 1636 ie wc6h 11m
28 Mar 2022 @ 1025 ie wc1d 1h 23m
27 Mar 2022 @ 0902 ie wc12h 47m
26 Mar 2022 @ 2015 wc5h 11m
26 Mar 2022 @ 1504 wc6h 33m
26 Mar 2022 @ 0831 wc12h 47m
25 Mar 2022 @ 1944 ie wc6h 27m
25 Mar 2022 @ 1317 wc6h 42m
25 Mar 2022 @ 0635 wc12h 49m
24 Mar 2022 @ 1746 ns wc6h 31m
24 Mar 2022 @ 1115 wc6h 28m
24 Mar 2022 @ 0447 wc18h 42m
23 Mar 2022 @ 1005 ie wc6h 28m
23 Mar 2022 @ 0337 wc6h 27m
22 Mar 2022 @ 2110 wc6h 10m
22 Mar 2022 @ 1500 wc6h 3m
22 Mar 2022 @ 0857 wc6h 29m
22 Mar 2022 @ 0228 wc6h 35m
21 Mar 2022 @ 1953 ie wc12h 58m
21 Mar 2022 @ 0655 ns wc6h 38m
21 Mar 2022 @ 0017 wc12h 59m
20 Mar 2022 @ 1118 ie wc12h 33m
19 Mar 2022 @ 2245 wc6h 17m
19 Mar 2022 @ 1628 wc6h 18m
19 Mar 2022 @ 1010 ns wc6h 28m
19 Mar 2022 @ 0342 wc6h 30m
18 Mar 2022 @ 2112 wc6h 22m
18 Mar 2022 @ 1450 wc17h 45m
17 Mar 2022 @ 2105 ns wc7d 21h 12m
09 Mar 2022 @ 2253 wc1d 14h 23m
08 Mar 2022 @ 0830 ns12h 32m
07 Mar 2022 @ 1958 wc1d 1h 52m
06 Mar 2022 @ 1806 wc6h 23m
06 Mar 2022 @ 1143 wc18h 57m
05 Mar 2022 @ 1646 ie wc1d 1h 51m
04 Mar 2022 @ 14556h 12m
04 Mar 2022 @ 0843 ie17h 53m
03 Mar 2022 @ 14507h 7m
03 Mar 2022 @ 0743 wc13h 0m
02 Mar 2022 @ 1843 wc6h 11m
02 Mar 2022 @ 1232 ie wc6h 36m
02 Mar 2022 @ 0556 ie wc12h 36m
01 Mar 2022 @ 1720 ns wc6h 36m
01 Mar 2022 @ 104419h 22m
28 Feb 2022 @ 1522 ie19h 7m
27 Feb 2022 @ 2015 ns wc6h 30m
27 Feb 2022 @ 1345 ie wc19h 13m
26 Feb 2022 @ 1832 ns wc6h 14m
26 Feb 2022 @ 1218 ie wc6h 40m
26 Feb 2022 @ 0538 ie wc13h 5m
25 Feb 2022 @ 1633 ie wc19h 32m
24 Feb 2022 @ 2101 ns wc6h 32m
24 Feb 2022 @ 1429 ns wc6h 27m
24 Feb 2022 @ 0802 wc12h 35m
23 Feb 2022 @ 1927 wc6h 18m
23 Feb 2022 @ 1309 ns wc6h 23m
23 Feb 2022 @ 0646 ns wc12h 54m
22 Feb 2022 @ 1752 ns wc6h 24m
22 Feb 2022 @ 1128 ie wc6h 26m
22 Feb 2022 @ 0502 wc6h 21m
21 Feb 2022 @ 2241 ns wc6h 13m
21 Feb 2022 @ 1628 ie wc1d 7h 24m
20 Feb 2022 @ 0904 wc6h 25m
20 Feb 2022 @ 0239 wc12h 20m
19 Feb 2022 @ 1419 ie wc6h 35m
19 Feb 2022 @ 0744 ns wc6h 23m
19 Feb 2022 @ 0121 wc6h 26m
18 Feb 2022 @ 1855 wc6h 20m
18 Feb 2022 @ 1235 ns wc6h 25m
18 Feb 2022 @ 0610 ns wc13h 3m
17 Feb 2022 @ 1707 wc6h 33m
17 Feb 2022 @ 1034 wc6h 27m
17 Feb 2022 @ 0407 wc6h 30m

Interval Statistics

Interval Count100
Min5h 11m
Max26d 15h 36m
Mean18h 33m
Median6h 33m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
20966 05 May 2022 @ 1000 --- hkoenig [in overflow]
20881 11 Mar 2022 @ 0925 --- aferrara Empty, lightly steam from both vents
20782 04 Feb 2022 @ 0924 --- aferrara keyhole on
20766 30 Jan 2022 @ 0941 --- aferrara Keyhole start
20704 16 Jan 2022 @ 0915 16 Jan 2022 @ 0940 aferrara Keyhole on, nothing from upper vent in this time.
20319 06 Nov 2021 @ 0859 --- aferrara In overflow
20235 31 Oct 2021 @ 0916 --- cb in overflow
20217 30 Oct 2021 @ 0952 --- Brando In overflow with boiling. Ranger prediction 10:30-10:45
20158 28 Oct 2021 @ 1355 --- DanS In overflow
20032 18 Oct 2021 @ 1013 --- cb in overflow
19632 17 Sep 2021 @ 0946 --- CrisG no overflow yet. no water visible in crater.
19600 16 Sep 2021 @ 1037 --- aferrara First splash in upper vent
19598 16 Sep 2021 @ 0955 16 Sep 2021 @ 1000 aferrara Keyhole started in this time range
19553 14 Sep 2021 @ 0717 --- CrisG not in overflow yet
19431 10 Sep 2021 @ 1425 --- RLJones Riverside is not in overflow. The sign is updated and is calling for an eruption at 1700 +\- 30
19235 01 Sep 2021 @ 1159 --- Barbara Lasseter Start of overflow
18955 18 Aug 2021 @ 0939 --- aferrara Bubbler behind main vent on.
18954 18 Aug 2021 @ 0925 --- aferrara In overflow, no bubbler
18873 09 Aug 2021 @ 0619 --- JimS Already in overflow.
18859 07 Aug 2021 @ 1211 --- aferrara In overflow, bubbler on.
18857 07 Aug 2021 @ 0815 --- Suzanne well past eruptive
18856 07 Aug 2021 @ 0605 --- JimS Already in overflow.
18845 06 Aug 2021 @ 0618 --- JimS Already in overflow.
18490 18 Jul 2021 @ 0535 --- SteveO In overflow
18338 10 Jul 2021 @ 0810 --- User34 Early overflow
18310 08 Jul 2021 @ 0836 --- JimS Start of overflow at 0836. Eruptions have been between 80 and 120 minutes from start of overflow. I recommend a prediction of 1010.
18236 02 Jul 2021 @ 0653 --- JimS Already in overflow at this time.
18215 01 Jul 2021 @ 0651 --- JimS Start of overflow. Eruptions have been about 80 to about 120 min after start of overflow. Suggest prediction of 0830.
18197 30 Jun 2021 @ 0723 --- JimS Overflow started 0723. Predict eruption at 0920.
18124 28 Jun 2021 @ 0640 --- JimS Overflow started about 0640. Predict eruption at about 0830.
18110 27 Jun 2021 @ 0605 --- JimS Start of overflow at 0605.
18098 26 Jun 2021 @ 0546 --- JimS Already in overflow at this time.
18080 25 Jun 2021 @ 0556 --- JimS In overflow.
18057 23 Jun 2021 @ 1134 --- JimS Overflow started at 1134.
18006 22 Jun 2021 @ 1108 --- K.Cooper Already in overflow
17935 20 Jun 2021 @ 0538 --- JimS Already in overflow.
17899 19 Jun 2021 @ 0553 --- JimS Already in overflow.
17888 18 Jun 2021 @ 1724 --- Art Already in overflow
17877 18 Jun 2021 @ 0548 --- JimS Already in overflow.
17850 16 Jun 2021 @ 1212 --- PamW In overflow when I walked up.
17335 01 Jun 2021 @ 1230 --- ge In overflow on arrival
17271 30 May 2021 @ 1529 --- Stephen_Gemar Another failed push. It stopped overflow for a few seconds.
17270 30 May 2021 @ 1525 --- Stephen_Gemar A failed push that stopped overflow for a few seconds.
17177 25 May 2021 @ 1643 --- User34 Another push and crash, no overflow for 90 seconds
17176 25 May 2021 @ 1625 --- User34 Huge push, afterwards overflow stopped for 1 1/2 to 2 minutes
16984 05 May 2021 @ 0927 --- mhvogel In overflow
16981 04 May 2021 @ 0858 --- nomadruss Riverside in overflow and broiling
16807 13 Jan 2021 @ 0942 --- mhvogel In overflow
16805 12 Jan 2021 @ 0956 --- mhvogel Riverside in overflow at 0956
16802 06 Jan 2021 @ 1003 --- mhvogel Currently in overflow.
16455 26 Oct 2020 @ 1426 --- nomadruss Beautiful eruption today.
16443 19 Oct 2020 @ 1156 --- am Not in overflow at this time
16425 14 Oct 2020 @ 1702 --- jonp In overflow
16415 12 Oct 2020 @ 0945 --- William in overflow, no water in back bubbler yet.
16328 04 Oct 2020 @ 1530 --- User34 Just below overflow
16244 24 Sep 2020 @ 1001 --- PamW In overflow
16239 23 Sep 2020 @ 1215 --- PamW An observer indicated Riverside had just finished.
15972 05 Sep 2020 @ 1132 --- jkgood In overflow & back vents on
15960 04 Sep 2020 @ 1855 --- William post eruptive, crater dry
15953 04 Sep 2020 @ 1209 --- TheHikingDude in overflow
15762 28 Aug 2020 @ 0930 28 Aug 2020 @ 0950 B**2 Start of overflow
15107 26 Jul 2020 @ 0805 --- William post eruptive, dry
14885 05 Jul 2020 @ 1224 --- William first observed splash from keyhole vent
14594 11 Jun 2020 @ 1036 --- William post eruptive, dry.
14162 03 Apr 2020 @ 1954 --- JarnoO (wc) Some steam appears to be originating from the Riverside area already, ~1h40m after the previous eruption.
14153 18 Mar 2020 @ 1907 --- JarnoO (wc) Some light steam appearing every so often from roughly its place (probably late ie). Interval until here (about 12h10m) would indicate a double interval assuming ~6h intervals.
14133 22 Feb 2020 @ 1032 --- Art In overflow
13969 24 Oct 2019 @ 1331 --- steve Riverside is in overflow
13859 03 Oct 2019 @ 1540 03 Oct 2019 @ 1728 underarockphoto BVS = back vent splash BVT = back bent thump I sat down at riverside at 15:40. It reached overflow at 15:45. The cone was totally dry so I’m assuming this was first overflow. I took notes of the following surges. The surges had increased boiling, and overflow, specifically enough to put water out over the lip of the cone behind and to the right of the main overflow channel. Surges noted as “+” indicate heavy overflow off the right ledge. “++” indicate overflow off all sides of the cone. 1545: overflow start 1610 1618 1624 1630 1635 1639 1644 1646 1647 1648 1648+ 1650 1652 1700 1703 1703 1704 1707 1707 1710++ BVT, BVS, heavy surging. Pool drained entirely for two minutes. 1712 1713 1716+ 1717+ 1718 1718 1719 1720 BVT 1721 1721+BVS 1725 1725+BVS 1728 1728++BVS 1728 Start
13858 03 Oct 2019 @ 1546 --- underarockphoto Overflow
13857 03 Oct 2019 @ 1542 --- underarockphoto Pool has filled crater and is blurping but has not hit overflow yet.
13674 13 Sep 2019 @ 0900 --- bhoppe Empty, quiet and no water visible. Possibly erupted round 730-8?
13587 06 Sep 2019 @ 0655 --- William empty crater.
13566 05 Sep 2019 @ 0840 --- AngelaT Overflow in process from Main Overflow Channel with splashing from Main Vent.
13323 20 Aug 2019 @ 1158 --- STS New NPS prediction of 17:45
13107 08 Aug 2019 @ 0825 --- AngelaT In overflow of with main vent splashing.
13024 04 Aug 2019 @ 1633 --- Stephen_Gemar Already in overflow, with decent play from the main vent.
12883 31 Jul 2019 @ 0955 --- rbwhitaker In overflow currently. (Did not see first overflow. Based on recent interval data, It's probably been in overflow for a while.)
12878 31 Jul 2019 @ 0815 --- adamdanski12 Mild to moderate overflow at this time with no splashing in any vents.
12862 29 Jul 2019 @ 0834 --- rbwhitaker Riverside went into overflow sometime between 816 and 834.
12834 28 Jul 2019 @ 0855 --- rbwhitaker Now in overflow. Don't know when it started
12830 28 Jul 2019 @ 0724 --- rbwhitaker Not in overflow yet
12819 27 Jul 2019 @ 0844 --- Minafuku In overflow when I arrived at 0844. Splashing in main vent is not sustained, hitting 6” to 18”. Keyhole splashing only to 6”. Posting a prediction of 0945 +/- 30.
12572 24 Jul 2019 @ 0800 --- dank Overflow and splashing in main vent
12487 14 Jul 2019 @ 2002 --- jazzknick Overflow well underway
12380 06 Jul 2019 @ 0848 --- Minafuku In overflow when I arrived at 0848
12087 03 Jul 2019 @ 0805 --- dank In overflow, light splashing in main vent
12055 01 Jul 2019 @ 0806 --- dank Steady overflow, splashing in main vent
11830 16 Jun 2019 @ 1342 --- Polly Post eruptive. Quietly steaming at 1342.
11740 12 Jun 2019 @ 0756 12 Jun 2019 @ 0806 dank Overflow and splashing in main vent, nothing in upper vent yet
11707 10 Jun 2019 @ 1614 --- Bhoffer Riverside is boiling and overflowing.
11704 10 Jun 2019 @ 1408 --- CrisG still no overflow
11701 10 Jun 2019 @ 1401 --- Bhoffer No action at riverside. Past prediction window.
11700 10 Jun 2019 @ 1300 --- Bhoffer Platform dry. Hardly any steam coming out of old vent.
11702 10 Jun 2019 @ 1250 --- CrisG no overflow. cone quietly steaming.
11598 06 Jun 2019 @ 0840 --- B**2 Definitely looks post eruption. Very Dry.
11574 04 Jun 2019 @ 1910 --- William in overflow
11179 06 May 2019 @ 0745 --- RLJones Start of overflow
11178 06 May 2019 @ 0657 --- RLJones Riverside is not in overflow
11149 03 May 2019 @ 1230 --- RLJones First overflow at 1230
EntrySourceLinkComment
22 Jul 2020 @ 1328 JSJ https://www.youtube.com/watch?v=DD6WNhycERw 4 minute video of eruption.
17 Jul 2020 @ 0826 JSJ https://www.youtube.com/watch?v=4nQk8faybk8 Video of Riverside Geyser's morning eruption on 17 July 2020.
24 Oct 2019 @ 0825 JoeN https://youtu.be/9zd4Sn1BbIE r-side video
24 Oct 2019 @ 0825 JoeN https://i.imgur.com/yAycpXd.png picture
17 Sep 2019 @ 0807 JoeN https://i.imgur.com/qav7bhe.png one shot pic
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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