Last Known Eruption
11h 59m ago

Latest Eruptions

Eruption DurationInterval
01 Aug 2021 @ 120619m 22h 32m
31 Jul 2021 @ 13344d 21h 45m
26 Jul 2021 @ 1549 ie6d 22h 37m
19 Jul 2021 @ 171213m 26s 3d 4h 20m
16 Jul 2021 @ 125216m 32s 21h 29m
15 Jul 2021 @ 15233m 3d 3h 46m
12 Jul 2021 @ 113719h 35m
11 Jul 2021 @ 1602 ie4d 1h 34m
07 Jul 2021 @ 1428 ns~17m 23h 42m
06 Jul 2021 @ 1445:3411m 3y 302d 20h 28m
07 Sep 2017 @ 18171h 38m
07 Sep 2017 @ 16391h 38m
07 Sep 2017 @ 15011h 48m
07 Sep 2017 @ 1313 min2d 53m
05 Sep 2017 @ 122019h 32m
04 Sep 2017 @ 1648 min1h 28m
04 Sep 2017 @ 1520 min<2m 44m
04 Sep 2017 @ 1436 min1m 30s 1d 54m
03 Sep 2017 @ 13423m 12s 1h 29m
03 Sep 2017 @ 1213 min38m
03 Sep 2017 @ 1135 min22h 43m
02 Sep 2017 @ 125210m 8d 21h 9m
24 Aug 2017 @ 1543 min1h 39m
24 Aug 2017 @ 14042h 26m
24 Aug 2017 @ 113812m 1h 4m
24 Aug 2017 @ 1034 min2d 4m
22 Aug 2017 @ 1030 ie>8m 21h 52m
21 Aug 2017 @ 123811m 47s 1h 8m
21 Aug 2017 @ 1130 ns30m
21 Aug 2017 @ 110055m
21 Aug 2017 @ 100521h 23m
20 Aug 2017 @ 1242 ie÷ > 10 m > 10 m2d 17h 58m
17 Aug 2017 @ 18442m 41m
17 Aug 2017 @ 18032m 36m
17 Aug 2017 @ 17272h 7m
17 Aug 2017 @ 152012m 56m
17 Aug 2017 @ 14244m 4d 19h 43m
12 Aug 2017 @ 184110m 1h 7m
12 Aug 2017 @ 17344m 16m
12 Aug 2017 @ 17186d 22h 56m
05 Aug 2017 @ 18221h 32m
05 Aug 2017 @ 16507m 2d 23h 39m
02 Aug 2017 @ 1711 min1h 18m
02 Aug 2017 @ 15539m 2s 27m
02 Aug 2017 @ 1526 ns min30m
02 Aug 2017 @ 14563m 11s 29m
02 Aug 2017 @ 14273m 9s 26m
02 Aug 2017 @ 14012m 53s 25m
02 Aug 2017 @ 1336 ns~2m 23m
02 Aug 2017 @ 1313 min58m
02 Aug 2017 @ 1215 ie23m
02 Aug 2017 @ 1152 min53m
02 Aug 2017 @ 10596m 47s 30m
02 Aug 2017 @ 10293m 39s 26m
02 Aug 2017 @ 1003~2m 30s 2d 15h 6m
30 Jul 2017 @ 1856:462m 15m 26s
30 Jul 2017 @ 1841:20 min17m 15s
30 Jul 2017 @ 1824:05 min5s 35m
30 Jul 2017 @ 17492m 12m
30 Jul 2017 @ 1736:22 min50d 2h 17m
10 Jun 2017 @ 1519 ie2d 6h 29m
08 Jun 2017 @ 0850 ie227d 18h 16m
23 Oct 2016 @ 143430d 2h 57m
23 Sep 2016 @ 1137 ie8d 1h 37m
15 Sep 2016 @ 1000 ie4d 16h 19m
10 Sep 2016 @ 174159m
10 Sep 2016 @ 164259m
10 Sep 2016 @ 154342m
10 Sep 2016 @ 1501 ie1h 15m
10 Sep 2016 @ 13461h 17m
10 Sep 2016 @ 12293d 20h 21m
06 Sep 2016 @ 1608 ie2d 51m
04 Sep 2016 @ 15171h 27m
04 Sep 2016 @ 135034m
04 Sep 2016 @ 131636m
04 Sep 2016 @ 12403d 23h 51m
31 Aug 2016 @ 12492d 23h 15m
28 Aug 2016 @ 13341h 5m
28 Aug 2016 @ 122931m
28 Aug 2016 @ 1158 ns28m
28 Aug 2016 @ 1130 min38m
28 Aug 2016 @ 1052~3m 3d 16h 36m
24 Aug 2016 @ 1816 min27m
24 Aug 2016 @ 1749 min1h 42m
24 Aug 2016 @ 16072h 24m
24 Aug 2016 @ 1343 ie1h 19m
24 Aug 2016 @ 1224 ns2m 50s 30m
24 Aug 2016 @ 1154 min1h 37m
24 Aug 2016 @ 1017 min10d 18h 6m
13 Aug 2016 @ 16112d 5h 53m
11 Aug 2016 @ 10189m 7d 19h 28m
03 Aug 2016 @ 1450 ie3d 3h 5m
31 Jul 2016 @ 114552m
31 Jul 2016 @ 1053122d 16h 38m
28 Jul 2016 @ 181525m
28 Jul 2016 @ 1750 ie1h 17m
28 Jul 2016 @ 163311m 10s 1h 25m
28 Jul 2016 @ 1508 ie2h 55m
28 Jul 2016 @ 121312m 23m
28 Jul 2016 @ 1150<2m 4d 16h 57m

Interval Statistics

Interval Count100
Min12m
Max3y 302d 20h 28m
Mean18d 8h 19m
Median1h 34m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
18392 12 Jul 2021 @ 1058 12 Jul 2021 @ 1135 cb The main vent is increasingly getting taller (2") blips. The vent closest to the back berm is visable to the naked eye today and blipping ~1-2" also. 1135 bigger blips
18293 06 Jul 2021 @ 1536 --- MAB Viewed from above very faint center boil - this time it means more - it's post-eruptive. Pool seen full 40m after last bursts
18296 06 Jul 2021 @ 1027 --- MAB very faint center boil - still receiving waters from around the berm but not as much
18043 22 Jun 2021 @ 1235 --- MAB center blips as viewed from above - water color is odd grayish color- will look again at different light angles
17545 07 Jun 2021 @ 1000 --- MAB small bloops big enough to be visible from Constant bench - all day
17070 12 May 2021 @ 1408 --- MAB fairly strong boil visble in center
16941 28 Apr 2021 @ 1838 --- MAB Cool - water comes around the berm from E. Porcelain and flows into Pinto's pool
16265 26 Sep 2020 @ 1416 --- cb I have not seen Pinto this year. Pool is overflowing down its runoff channel but I can't see any convection waves or steam on this chilly, windy day.
13049 05 Aug 2019 @ 0926 --- MAB all day. Blips and bloops - never really saw runoff change
11020 20 Apr 2019 @ 0958 --- MAB Strong convection seen in the center when viewed from above past Hurricane.
10277 17 Sep 2018 @ 1532 --- MAB slight convection seen - first time I've seen it this season
8840 21 Jun 2018 @ 0955 21 Jun 2018 @ 1645 MAB Small blips, tiny domes and convection visible all day but not a huge amount of overflow.
3870 06 Nov 2016 @ 1503 --- srboom started trying to erupt, then aborted
2365 15 Sep 2015 @ 1016 --- MAB Increased convection and bubbles seen than those most of the summer, with good concentric mini-waves, as seen from above. (Remember 5 weeks of boardwalk closure, it was viewed from above frequently.) No noticeable increase in overflow though.
7645 26 Jun 1986 @ 1800 --- research-mab 6-26-1986 Pinto Geyser – Flooded by affluents of SE Porcelain Basin with dark orange & brown algae extending into vent from the north. Cyanidium algae along east margin of pool. Discharge from Pinto is greater than inflow, with opalescent blue water over vent. T=137º
4848 19 Aug 1985 @ 1800 --- research-mab 8/19/1985 Pinto Geyser = continued about constant up to 2 feet or so all day = from ½ foot to 2 feet at most
7606 11 Feb 1984 @ 1800 --- research-mab 02/11/1984 Pinto Geyser 72ºC Water, slightly turbid, is flowing in from the north. Medium gray color.
7651 31 Aug 1983 @ 1800 --- research-mab 8-31-83 Pinto G slight convection, med grn algae lined 56ºC
4620 22 Sep 1980 @ 1800 --- research-mab 9/22/1980 Pinto Geyser – Boiling very vigorously, water 2 feet down, but erupting 2 to 4 feet, white murky water 204ºF
4608 15 Sep 1980 @ 1800 --- research-mab 9/15/1980 Pinto Geyser – Turbid grey, bubbling mildly, increased overflow but no evidence of a disturbance related eruption 150ºF
5145 27 Sep 1979 @ 1800 --- research-mab 09/27/1979 Pinto – 200ºF – clear water, boiling violently out of an empty pool. Marker gone.
4998 20 Sep 1979 @ 1800 --- research-mab 09/20/1979 Disturbance Pinto Geyser – muddy gray water bubbling gently. Had the appearance of having erupted during the day. Marker of light gravel placed in run off channel. 163ºF Geyser in run off channel north of Constant which flows to the east of Constant. Perpetually spouting 2 to 5 feet. This same feature became active with last year’s season end change. - 188ºF
5537 29 Jun 1976 @ 1540 29 Jun 1976 @ 1600 research-mab 06/29/1976 Arsenic, Moxie & Pinto erupting simultaneously from 3:40 -4:00
6057 18 Aug 1973 @ 1800 --- research-mab 08/18/1973 Pinto in eruption AM
6449 02 Sep 1972 @ 1800 --- research-mab 09/02/1972 Pool around Pinto has drained
6450 02 Sep 1972 @ 1800 --- research-mab 09/02/1972 Pool around Pinto has drained
6440 27 Aug 1972 @ 1800 --- research-mab 08/27/1972 Pinto has become a pool approx. 10’-12’ in diameter. Very hot with bubbling from the vent. A good deposit of sulphur around the vent makes the center of the pool appear greenish.
7869 09 Aug 1972 @ 1100 --- research-mab Pinto Geyser: The first known tall eruptions were observed for several days after the September 9th, 1971 disturbance, none since then until August 9th, 1972: {generic time}
6513 14 Sep 1971 @ 1800 --- research-mab 09/14/1971 Some new changes noted in Porcelain: Pinto had no observed eruptions today.
6523 12 Sep 1971 @ 1800 --- research-mab 09/12/1971 Pinto Geyser – no eruptions were observed today
6571 11 Sep 1971 @ 1800 --- research-mab 09/11/1971 Pinto Geyser 198º (up 4º 7/31/71) fountain eruptions 20-30 ‘ - less frequent than yesterday {temps taken 1430-1700}
6783 23 Oct 1964 @ 1800 --- research-mab 10/23/1964 Fireball {PINTO} is quiet.
6779 18 Oct 1964 @ 1800 --- research-mab 10/18/1964 Fireball {PINTO} is quiet – no agitation.
6773 17 Oct 1964 @ 1800 --- research-mab 10/17/1964 Fireball {PINTO} is now full & quiet and 200º
6770 16 Oct 1964 @ 1800 --- research-mab 10/16/1964 Fireball {PINTO} has risen and is less active.
6745 09 Oct 1964 @ 1800 --- research-mab 10/09/1964 The small geysers (Fan, Arsenic, Fireball {PINTO} etc) are still continuously active but are weak.
6709 05 Oct 1964 @ 1800 --- research-mab 10/05/1964 Porcelain Basin observed from 3:30 pm to 4:30 pm Fireball {PINTO} has dropped about a foot but is still active.
6707 04 Oct 1964 @ 1800 --- research-mab 10/04/1964 Arsenic, Fan and Fireball {PINTO} are still steadily active.
6791 03 Oct 1964 @ 1800 --- research-mab 10/03/1964 The little geysers within the boardwalk loop (Arsenic, Fan {today’s FIREBALL}, Fireball {today’s PINTO}) have been continuously active all day.
6692 28 Sep 1964 @ 1800 --- research-mab 09/28/1964 {Fireball in log} (PINTO) is playing steadily to about one foot.
6690 27 Sep 1964 @ 1800 --- research-mab 09/27/1964 The consensus of opinion was unanimous that many features show a decided change. {Fireball in log} (PINTO) has dropped and is playing to a foot or so.
EntrySourceLinkComment
09 Aug 2014 @ 1629 JSJ https://www.youtube.com/watch?v=ucVjOxMzsT4 See clips # 10-18 (time stamp - 1:37) of this video compilation.
09 Aug 2014 @ 1527 JSJ https://www.youtube.com/watch?v=ucVjOxMzsT4 See clips # 3-9 (time stamp - 0:23) of this video compilation.
08 Aug 2014 @ 1813 JSJ https://www.youtube.com/watch?v=ucVjOxMzsT4 See clips # 1-2 of this video compilation.
Baseline does not exist.