Last Known Eruption
1d 21h 56m ago

Latest Eruptions

Eruption DurationInterval
30 Jun 2022 @ 0810 wc4d 16h 35m
25 Jun 2022 @ 1535 ie2d 8h 17m
23 Jun 2022 @ 0718 ie wc1d 11h 7m
21 Jun 2022 @ 2011 ie wc4d 1h 25m
17 Jun 2022 @ 1846 ns wc16h 55m
17 Jun 2022 @ 0151 ns wc4d 11h 32m
12 Jun 2022 @ 1419 wc1d 15h 36m
10 Jun 2022 @ 2243 ns wc22h 45m
09 Jun 2022 @ 2358 ns wc1d 56m
08 Jun 2022 @ 2302 ie wc3d 18h 3m
05 Jun 2022 @ 0459 ns wc1d 18h 51m
03 Jun 2022 @ 1008 ie wc23h 58m
02 Jun 2022 @ 1010 ie18h 37m
01 Jun 2022 @ 1533 ie1d 7h 34m
31 May 2022 @ 0759 ie23h 14m
30 May 2022 @ 0845 A20h 0m
29 May 2022 @ 1245 A1d 1h 29m
28 May 2022 @ 1116 ie2d 58m
26 May 2022 @ 10186m 12h 56m
25 May 2022 @ 2122 ns12h 34m
25 May 2022 @ 0848 ie wc13h 36m
24 May 2022 @ 1912 ie1d 5h 58m
23 May 2022 @ 1314 ie1d 3h 17m
22 May 2022 @ 0957 ie23h 53m
21 May 2022 @ 1004 ns18h 7m
20 May 2022 @ 1557 ns wc3h 13m
20 May 2022 @ 1244 ie5h 10m
20 May 2022 @ 0734 ns wc11h 9m
19 May 2022 @ 2025 ie10h 30m
19 May 2022 @ 0955 ie wc1d 3h 45m
18 May 2022 @ 0610 ns wc15h 27m
17 May 2022 @ 1443 ns wc23h 52m
16 May 2022 @ 1451 ie wc9h 57m
16 May 2022 @ 0454 ns wc9h 49m
15 May 2022 @ 1905 wc5d 13h 26m
10 May 2022 @ 0539 ns wc2d 16h 40m
07 May 2022 @ 1259 ns wc1d 18h 53m
05 May 2022 @ 1806 ns wc5d 7h 56m
30 Apr 2022 @ 1010 ie wc4d 37m
26 Apr 2022 @ 093314h 37m
25 Apr 2022 @ 1856 ie wc1d 5h 41m
24 Apr 2022 @ 1315 ie2d 6h 32m
22 Apr 2022 @ 0643 ns wc1d 8m
21 Apr 2022 @ 0635 ns wc9h 43m
20 Apr 2022 @ 2052 wc1d 39m
19 Apr 2022 @ 2013 ie wc1d 3h 10m
18 Apr 2022 @ 1703 ie wc1d 8h 25m
17 Apr 2022 @ 0838 ie wc1d 1h 36m
16 Apr 2022 @ 0702 ns wc2d 8h 36m
13 Apr 2022 @ 2226 ns wc16h 33m
13 Apr 2022 @ 0553 ns wc2d 10h 3m
10 Apr 2022 @ 1950 wc11h 49m
10 Apr 2022 @ 0801 ie wc14h 39m
09 Apr 2022 @ 1722 ie wc1d 6h 39m
08 Apr 2022 @ 1043 ie wc3d 3h 13m
05 Apr 2022 @ 0730 ie wc1d 11h 17m
03 Apr 2022 @ 2013 wc9h 12m
03 Apr 2022 @ 1101 ie wc2d 1h 4m
01 Apr 2022 @ 0957 ie wc2d 14h 46m
29 Mar 2022 @ 1911 ie wc1d 8h 33m
28 Mar 2022 @ 1038 wc20h 9m
27 Mar 2022 @ 1429 ie wc2d 22h 1m
24 Mar 2022 @ 1628 ie wc≥6m2d 2h 7m
22 Mar 2022 @ 1421 ns wc1d 23h 56m
20 Mar 2022 @ 1425 ns wc1d 9h 36m
19 Mar 2022 @ 0449 ns wc12h 57m
18 Mar 2022 @ 1552 ie wc12d 20h 34m
05 Mar 2022 @ 1818 ie wc3h 18m
05 Mar 2022 @ 1500 wc~5m 1h 43m
05 Mar 2022 @ 1317 ie wc1d 4h 16m
04 Mar 2022 @ 0901 ns23h 24m
03 Mar 2022 @ 0937 ns6d 15h 13m
24 Feb 2022 @ 1824 ie wc7d 21h 32m
16 Feb 2022 @ 2052 wc7h 4m
16 Feb 2022 @ 1348 ns wc4h 46m
16 Feb 2022 @ 0902 ie wc22h 59m
15 Feb 2022 @ 1003 wc14d 1h 52m
01 Feb 2022 @ 0811 wc~4½m11d 17h 31m
20 Jan 2022 @ 1440 ns wc3d 2h 40m
17 Jan 2022 @ 1200 A18h 36m
16 Jan 2022 @ 1724 wc12d 4h 50m
04 Jan 2022 @ 1234 ns~5m 12d 12h 57m
22 Dec 2021 @ 2337 ns wc16h 58m
22 Dec 2021 @ 0639 ie wc18h 38m
21 Dec 2021 @ 1201 ns1d 22h 43m
19 Dec 2021 @ 1318 ie wc17h 38m
18 Dec 2021 @ 1940 wc9d 12h 11m
09 Dec 2021 @ 0729 ie wc9d 22h 21m
29 Nov 2021 @ 0908 wc12d 4h 57m
17 Nov 2021 @ 0411 ns wc10h 34m
16 Nov 2021 @ 1737 ie wc7d 23h 49m
08 Nov 2021 @ 1748 ie wc10d 13h 14m
29 Oct 2021 @ 0534 ns wc9d 22h 33m
19 Oct 2021 @ 0701 ns wc10h 59m
18 Oct 2021 @ 2002 ns wc20h 25m
17 Oct 2021 @ 2337 wc22h 45m
17 Oct 2021 @ 0052 wc10d 7h 45m
06 Oct 2021 @ 1707 ie5d 18m
01 Oct 2021 @ 1649 ie3d 11h 28m
28 Sep 2021 @ 0521 ns wc18h 44m

Interval Statistics

Interval Count100
Min1h 43m
Max14d 1h 52m
Mean2d 18h 12m
Median1d 4h 0m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
22172 27 Jun 2022 @ 2300 --- K.Cooper From 530-7am, NO cycles. I think Oblong went around this time last night.
21954 12 Jun 2022 @ 1520 --- Graham No water visible and some noise. Consistant with 1419ie wc.
21922 11 Jun 2022 @ 1106 --- Graham Pushed. Also 1131, 1158, 1223 stronger, 1247, 1259 weak push didnt cover rocks and small drop, 1309 stronger, 1340.
21829 07 Jun 2022 @ 1514 07 Jun 2022 @ 1950 Forestbewithyou Oblong had cycle fills at 1514, 1540, 1609, 1629, 1703, 1726, 1801, 1825, 1856, 1920, and 1950. Left after 1950
21785 06 Jun 2022 @ 1101 --- Graham Pushed. Break in Observation. Pushed 1248. 1301 small rise didn't cover the rocks. Pushed 1313, 1337, 1404, 1439,
21549 28 May 2022 @ 1100 --- Graham Push 1100
21536 27 May 2022 @ 1639 --- Graham Pushes 1639, 1659, 1722. 1747, 1809. 20 to 25 minute intervals.
21531 27 May 2022 @ 1238 --- Dan A Great push putting water over the entire front rim.
21510 26 May 2022 @ 0926 --- Dan A 9:26 great push, water flowing down the entire front rim. Boiling was more vigorous than anything observed yesterday.
21519 25 May 2022 @ 2122 --- Graham Oblong was near start at this time observed from Grand. Webcan start time is incorrect, they should always be ie.
19757 27 Sep 2021 @ 1119 --- Graham Splashes just visible at rim level d=3m. Again 0825 d=2. Small boils as the water level rises.
19728 25 Sep 2021 @ 1326 --- Graham Pushed. Also 1351 I=25m, 1417 I=26m, 1443 I=26m,1504 I=21m, 1548 I=24m.
18118 27 Jun 2021 @ 1623 --- TheHikingDude In overflow
17788 14 Jun 2021 @ 1137 14 Jun 2021 @ 1319 Polly Oblong was down (islands visible ~3”) on approach 1137. It rose slowly, with water coming over both spillways by 1147. There was some bubbling center front of pool. Drool started at 1147 all across the usual spots. 1148 dropping & by 1149 I could see about 2” of islands. By 1151, 3” visible (& microburst wind). By 1154 down 3-4”. 1209 up & good overflow right spillway, then left one 1211. Drool began 1216, increasing across quickly. At 1219 it began dropping quickly. By 1236, overflow on left & right spillways. 1240 looked down a little but picked up again 1243. Drool at 1244. It was all across 1245. Dropping 1246. 1257 overflow right & left spillways. Dropped back 1300, still dropping 1305. Headed back up 1312, with drool all across. Dropping by 1319. Overall, runoff reaching to bottom of terraces near boardwalk with each drool. Standing water near boardwalk from left of sign & to the river. Some wind off and on, with only one large burst (microburst).
17683 11 Jun 2021 @ 0837 --- TheHikingDude Pool was 4 inches below overflow and all sides of the pool were gently boiling. Saw one boil go up around a foot.
17536 07 Jun 2021 @ 1049 --- Polly Terraces partially black, but with an orange runoff channel flowing to the front right. Oblong’s pool has headed down right now, but overflow from last fill is reaching close to the boardwalk.
16082 12 Sep 2020 @ 1038 --- TheHikingDude 2 in below overflow
15366 04 Aug 2020 @ 1500 04 Aug 2020 @ 1610 Janet Jones It seems to be having good overflow and bubbling from two spots in the pool - calling these a push. Pushes seem to happen about every half hour - but I only had 3 data points, so more observations would be helpful.
13769 18 Sep 2019 @ 1414 18 Sep 2019 @ 1755 Polly Cycles (overflow, drop, overflow) varied from about 10 to 29 minutes. Some of the cycles produced good overflow, but I only saw drool a couple of times. (Part of this might be due to wind & steamy conditions.)
13768 18 Sep 2019 @ 1413 --- Polly Oblong’s terraces have whitened up considerably from my last observation. (Some Oblong eruptions have been reported recently.)
13580 05 Sep 2019 @ 1516 05 Sep 2019 @ 1530 Polly Terraces in front have black areas. I could see a little light flowing water up front from a previous overflow. I saw one fill during observation time that was very short-lived and didn’t produce much flow over the edge.
13578 05 Sep 2019 @ 1340 --- Janet Jones Oblong looks like it’s lost many of the microbe mats. Addition: discussing it with Polly, the lightness I noticed is likely due to dry sinter.
13364 23 Aug 2019 @ 1440 23 Aug 2019 @ 1511 EmilyW Only push I saw was incredibly weak and not exciting
13290 16 Aug 2019 @ 1903 --- RMichaels Post-eruptive.
13068 06 Aug 2019 @ 1025 06 Aug 2019 @ 1045 Brian Pool sitting with exposed islands and no apparent cycling during this observation and also earlier in the morning
13017 04 Aug 2019 @ 1035 04 Aug 2019 @ 1040 William boiling 1-2" from 2 different positions within the pool and overflowing. pool dropped 1/2" by 10:40.
13363 01 Aug 2019 @ 0945 01 Aug 2019 @ 1215 Polly When we arrived, Oblong had lots of flowing water all the way down to the front. At first, it was having pushes (including a second push) about every 15-20 minutes. I saw "drool" at 1013, 1036, 1055, & 1122 (strong). After the push at 1122, the pool dropped and at least 6" of rock was visible on the left edge. This time the rise was a slow one, until I saw decent overflow at 1145. On the next rise, it had drool at 1150, then headed down at 1202. (This is similar behavior to what I saw last year. If so, if all continued well, it may have had an eruption within about an hour. We opted to leave, get some lunch, and go to Beehive, though. No eruption was seen this day.)
12824 27 Jul 2019 @ 1420 27 Jul 2019 @ 1735 Polly Oblong’s pool was full on approach. At 1445, overflow was reaching the right front of the terraces. In general, Oblong was cycling with anywhere from 20 minute cycles to a couple of fairly deep drops and a couple of stalls. The drop at 1544 lasted about 20 minutes. The drop at 1617 came after a fairly strong overflow. (May have had “drool” but cloudy sky & hard to tell.) I could see maybe 8-9” of exposed rocks during this drop and I could barely see the water. It rose fairly quickly to about 2-3” of exposed islands, then stalled until ~1640. It had a push at 1648 and again at 1718. I hoped that the osprey catching a fish might be a good sign, but Oblong dropped after that push, then stalled a few inches down again.
12823 27 Jul 2019 @ 1259 --- Polly From the Inn parking lot, I looked up from what I had been doing to see a large amount of steam at Oblong. The steam stopped shortly after that.
12418 25 Jun 2019 @ 1355 --- Polly Oblong is steamy, with a steamy runoff into the river. Colors in the front runoff channel: orange, red orange, black, green.
11131 29 Apr 2019 @ 1408 --- Polly Oblong’s terraces have orange and white spots on the southeast side, but are gray on the northeast side. There are some small spots of water running down to the front with stronger overflow to the right side. Seems to be cycling, but too steamy to tell.
9426 02 Aug 2018 @ 0815 02 Aug 2018 @ 1005 c.barwin Arrived at Oblong just after a fill and waited 25 minutes until the next one. Using the 'islands' as my gauge, pool level didn't drop as low as I've seen in years past. Water levels didn't move until about 3 minutes before the 'islands' were fully covered. The level was sustained for under 2 minutes and water was drooling over many edges. The next fill was 25 minutes later and was a tad better than the previous - lasting just over 2 minutes and flowing over the edges rather than drooling. The next fill was 28 minutes later. I left and didn't make it back in time to see the peak of the next fill and just missed it - about 25 minutes. And the last fill I watched was about 22 min. The fact that Oblong may be resuming a rhythm of cycling up and down and overflowing from most edges appears promising.
9411 02 Aug 2018 @ 0816 --- JSJ In overflow.
6368 14 Sep 2017 @ 0815 --- Graham Refilliing, can see water in pool but below normal drop level.
5881 05 Sep 2017 @ 1924 --- RMichaels Post-eruptive and refilling. Pool about 1 ft. below rim.
4834 08 Aug 2017 @ 1434 --- EmilyW Pool about 1.5 feet down. Erupted recently
4652 01 Aug 2017 @ 1903 --- Kevin L A possible Oblong was spotted on the cam by Eric at 1544
4649 01 Aug 2017 @ 1704 --- deanl post-eruptive - maybe an hour ago
4575 29 Jul 2017 @ 1736 --- Kitt B Kitt was told the duration was only 3 minutes.
4447 11 Jul 2017 @ 0955 --- Kitt B Oblong was empty.
4204 04 Jun 2017 @ 1329 04 Jun 2017 @ 1354 EmilyW Oblong down 1329, up 34, coming down 35, down with islands exposed 36, started up at 40, fully up at 42, started coming down, down at 45. Started coming up at 47 then was fully up at 50. Was fully down at 1354. Cycles were 10 minutes long each. Pushes when at the top seemed to be very weak. Much weaker than previously observed over the last week. Boiling and overflow seemed normal. Though the pushes lasted a very short amount of time about a minute. Did not seem very enthusiastic about erupting
4189 03 Jun 2017 @ 1931 --- EmilyW Pool empty, erupted recently
4031 02 May 2017 @ 1200 02 May 2017 @ 1700 Polly 10 then increasing to 14 minute cycles, with quick rises of the pool to overflow. Light to heavy boiling on most overflows. Overflows lasted 2-3 minutes. Pool went down when boiling occurred. Wind gusty at times. No eruption as of 1700.
4028 02 May 2017 @ 0909 02 May 2017 @ 1020 SteveO Water started pouring over the rim, doming boil 6 inches to a foot and did not erupt. Water dropped 3 to 4 inches. 0926 water pouring out both spillways, big sizzling boil near big spillway 2 to 3 inches. Normal drop in water level after that. 0939 water spillway over the rim, level dropped just a bit and sizzling boil in 2 spots to 3 to 4 inches. Normal drop in water level after that. 0953 water spilled over the rim, dropped back just a bit and sizzling by small spillway for 2 minutes as water level dropped. 1005 water spilled over rim, sizzling boil in 3 spots, boiled bigger as level dropped. 1020 repeat of 0909 excep for a normal level drop.
3950 16 Feb 2017 @ 1115 --- WillBoekel empty.
3927 26 Jan 2017 @ 1440 --- Graham before 1440
3608 06 Sep 2016 @ 0930 --- Kitt B geyser was empty
3701 31 Aug 2016 @ 0850 --- BB Allan saw Oblong in eruption but didn't write down the time. 0850 is our best guess.
3389 31 Jul 2016 @ 1230 --- EmilyW Empty, erupted between 1210 and 1230. Full at 1210
3369 26 Jul 2016 @ 1337 --- EmilyW Empty, post eruptive
3306 15 Jul 2016 @ 1813 --- EmilyW Post erupt ive, empty
3255 08 Jul 2016 @ 0033 --- JarnoO May have erupted. A light pointed towards it at 0038 and at that time the steam cloud was smaller than it was at 0033.
3188 03 Jul 2016 @ 0455 --- Graham Pool down.
3129 24 Jun 2016 @ 0337 --- JarnoO May have erupted @ 0337 - very heavy steam in the first 2 minutes, after that the steam became less and less until there was no visible steam @ 0341
3126 23 Jun 2016 @ 1433 --- udo Overflowed for over an hour. 1st crash 1433. Runoff channel near b'walk was dry prior to crash. Did we miss an eruption?
2806 01 May 2016 @ 0844 --- WillBoekel empty.
2790 16 Apr 2016 @ 1115 --- Janet Jones Empty.
2635 24 Dec 2015 @ 1305 --- Tara Empty crater, recently post-eruptive
2501 10 Oct 2015 @ 1015 --- Scott Grisso Very strong push at 1003. Water stayed high for 5 minutes with strong boiling over most of the pool. Crashed at 1003 and dropped several inches below overflow. It is the farthest I have ever seen the water level drop prior to an eruption.
2269 05 Sep 2015 @ 0720 05 Sep 2015 @ 0730 BB We saw a big steam cloud over the trees from the hill during Beehive's eruption. Probably Oblong.
2246 02 Sep 2015 @ 1436 --- c.barwin empty :(
2050 08 Aug 2015 @ 1138 --- EmilyW Post eruptive
1833 04 Jul 2015 @ 1250 --- Jake empty.
1805 27 Jun 2015 @ 1810 --- WillBoekel empty.
1704 08 Jun 2015 @ 1753 --- WillBoekel empty.
1583 14 May 2015 @ 0826 --- WillBoekel empty crater
1541 26 Apr 2015 @ 0819 --- WillBoekel empty crater
1433 04 Oct 2014 @ 1557 --- WillBoekel empty at 1557
1241 20 Sep 2014 @ 0819 --- WillBoekel looked as if it was full but the platform was pretty dry at 0819.
1147 27 Aug 2014 @ 0624 --- BB empty at 0624
1142 23 Aug 2014 @ 0527 --- WillBoekel full at 0527
145 21 Mar 2012 @ 0859 21 Mar 2012 @ 1730 BB I had big steam clouds which might have been Oblong in my captures at 0859, 1314 and 1730.
1001 18 Aug 2008 @ 1440 18 Aug 2008 @ 1449 BoekelUpload 14:4x ie
1360 28 Dec 2007 @ 0910 28 Dec 2007 @ 0919 BoekelUpload 9:1x ns
1359 18 Aug 2007 @ 1900 18 Aug 2007 @ 1959 BoekelUpload 19:?? [Note: this is not a typo.]
1358 18 Aug 2007 @ 1800 18 Aug 2007 @ 1859 BoekelUpload 18:??; vr [Note: this is not a typo.]
16746 12 Oct 1998 @ 0000 12 Oct 1998 @ 2359 JarnoO no Oblong seen today
16744 10 Oct 1998 @ 0000 10 Oct 1998 @ 2359 JarnoO not ie during the day
16726 24 Sep 1998 @ 0739 --- JarnoO empty
16722 20 Sep 1998 @ 1119 --- JarnoO pool not full
16681 01 Jul 1998 @ 0000 01 Jul 1998 @ 2359 JarnoO unreadable
15853 16 Aug 1997 @ 0600 --- JarnoO empty
15795 07 Jan 1997 @ 1200 --- JarnoO {generic time}; quiet since at least 1/4
15272 16 Aug 1996 @ 0930 --- JarnoO not in overflow
14388 14 Sep 1995 @ 2050 --- JarnoO had not erupted by 2050
14357 13 Aug 1995 @ 0850 13 Aug 1995 @ 0859 JarnoO 08:5x
14308 26 May 1995 @ 1200 --- JarnoO not in the past 10 days via TempMentor; {generic time}
12779 09 Dec 1994 @ 0000 09 Dec 1994 @ 2359 JarnoO dormant
12633 02 Apr 1994 @ 0000 02 Apr 1994 @ 2359 JarnoO still marked 3/16
12268 15 Jul 1993 @ 0000 15 Jul 1993 @ 2359 JarnoO chunks of cyanobacteria observed on terraces. Mechanism of displacement unknown. Eruption unlikely (no Stink)? Ann
12150 14 Feb 1993 @ 1200 --- JarnoO has not erupted this winter; evidence is in bacterial growth in terraces and runoff and silica ppt accumulation on edge nearest boardwalk
6258 13 Sep 1992 @ 0455 13 Sep 1992 @ 1535 JarnoO crater is empty @ 0455; did not erupt between 0455 and 1535
5339 13 Jun 1992 @ 0500 --- JarnoO before 0500
5315 12 Jun 1992 @ 2020 --- JarnoO before 2020
5195 03 May 1992 @ 1830 --- JarnoO empty 1830
4948 11 Feb 1992 @ 1337 --- JarnoO empty 1337
557 05 Jul 1976 @ 0930 --- BoekelUpload overflowing at 930
471 18 Jul 1975 @ 1933 --- BoekelUpload 1933 finished
187 05 Sep 1971 @ 0000 05 Sep 1971 @ 2359 BoekelUpload finish/grandstrt VR
EntrySourceLinkComment
26 Aug 2021 @ 0525 JoeN https://youtu.be/7DMnZa41xxs oblong video
03 Oct 2020 @ 1506 JoeN https://youtu.be/GPSQqAkbClc Oblong as seen from Camera
03 Aug 2020 @ 1330 JoeN https://youtu.be/BN9cONxYtrE 1330 Oblong
03 Aug 2020 @ 0148 JoeN https://youtu.be/wJpuuAzkULY Oblong video
27 Jul 2020 @ 2047 JoeN https://youtu.be/Z8m6eKCrpdU Oblong as seen from camera
28 Jun 2020 @ 0708 JoeN https://youtu.be/T2N2afGLPgU Oblong Video
28 Jun 2020 @ 0708 JarnoO https://www.youtube.com/watch?v=T2N2afGLPgU As seen from the webcam, by JoeN.
01 Mar 2020 @ 1648 ltgangi https://youtu.be/J6vU93uIE8s Oblong eruption from start
05 Dec 2019 @ 1354 JoeN https://www.youtube.com/watch?v=Sj2Qr6tN-m4&t=25s oblong videq
21 Nov 2019 @ 1425 JoeN https://youtu.be/EC83LIqLLkw oblong video
07 Nov 2019 @ 1323 JoeN https://youtu.be/Vsr4RhQiAbo Oblong video
31 Oct 2019 @ 1128 JoeN https://imgur.com/a/cJUi6im oblong snapshot
16 Oct 2019 @ 0924 ltgangi https://youtu.be/vR77uofv3uA oblong eruption
18 Sep 2019 @ 0550 JoeN https://i.imgur.com/I69yobe.png screenshot
17 Sep 2019 @ 0607 JoeN https://i.imgur.com/UqmG7Vl.png oblong screenshot 09/17 0607
16 Sep 2019 @ 0044 JoeN https://i.imgur.com/8BIHACw.png snapshot
23 Aug 2019 @ 0743 JoeN https://youtu.be/pPtorbo0dog Oblong Video
02 Jul 2019 @ 1613 Graham https://www.youtube.com/watch?v=V87em5vDpeg&feature=youtu.be&t=1077 SLw down the replay speed to watch the eruption on the new webcam.
02 Jul 2019 @ 1615 Graham https://www.youtube.com/watch?v=V87em5vDpeg&feature=youtu.be&t=1077 SLow down the video to see it better. The bursts are clearly visible.
16 Aug 2014 @ 1627 JSJ https://www.flickr.com/photos/jsjgeology/15332835120 Photo (1 of 7) of Oblong Geyser's 4:27 to 4:34 PM eruption on 16 August 2014.
Baseline does not exist.