Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
37875 |
31 Oct 2024 @ 1502 |
--- |
SantaFe108 |
Murky aquamarine color, bubbling mostly on west side and just a little on Hurricane Vent side. |
37863 |
31 Oct 2024 @ 0900 |
--- |
MAB |
many bubbling spots near vent creating little waves - lesser bubbling on far west end but also creating tiny waves |
37819 |
29 Oct 2024 @ 0953 |
--- |
MAB |
still steady lg bubbles near west end - smaller ones by east vent |
37710 |
24 Oct 2024 @ 1150 |
--- |
SantaFe108 |
Overflowing, bubbling from side closest to boardwalk, and by runoff channel. Bubbling is more vigorous than anything I've seen previously this summer. |
37680 |
22 Oct 2024 @ 1531 |
--- |
MAB |
distinct small boils on west end - more scattered bubbles nearer east vent - little auxiliary pool on SE end by vent frequent lg bubbles & agitation in clear water |
37504 |
10 Oct 2024 @ 1312 |
--- |
SantaFe108 |
Overflowing seafoam green water. Bubbling on side closest to Hurricane Vent. |
37348 |
03 Oct 2024 @ 1014 |
--- |
SantaFe108 |
Clear, brown-green water, bubbling in center and on side facing Hurricane Vent. |
36800 |
06 Sep 2024 @ 1325 |
--- |
cb |
water is very clear snd a blueish hue. no activity |
35405 |
21 Jun 2024 @ 1051 |
--- |
nails |
Slightly grey green and calm. Occasional lazy bubbles in south end and middle. |
35072 |
10 Jun 2024 @ 0932 |
--- |
SantaFe108 |
Small, infrequent bubbles on the Hurricane Vent side. |
34232 |
19 Apr 2024 @ 0911 |
--- |
MAB |
clear with the tiniest of bubbles floating on the east end |
33958 |
30 Jan 2024 @ 1400 |
--- |
JR |
Bubbly, a bit lower water level? |
29049 |
22 Oct 2023 @ 1308 |
--- |
SantaFe108 |
Bubbling on NW end of the pool and the E main vent. Colloidal Pool boiling on NW end. |
28914 |
20 Oct 2023 @ 1038 |
--- |
MAB |
more bubbles on the nw end - and a few mid-pool I didn't see Tuesday - most bubble boils from main E vent - Sunday is putting more water into Scummy than Colloidal is |
28848 |
17 Oct 2023 @ 1604 |
--- |
MAB |
murky seafoam green - light boil on west end - another 2/3 towards east vent - most action near east end - COLLOIDAL POOL all lobes same color an ugly taupe - low and barely flowing past Sunday & even less flowing under the bw to Scummy |
23254 |
18 Aug 2022 @ 1843 |
--- |
MAB |
Sunday and Colloidal both appear over full - channel into Scummy has water |
22525 |
12 Jul 2022 @ 1135 |
--- |
cb |
clear and blue again |
22285 |
02 Jul 2022 @ 1050 |
02 Jul 2022 @ 1249 |
cb |
Cloudy blue in color with 2 small boils. not flowing into Scummy pool |
22177 |
28 Jun 2022 @ 1356 |
--- |
cb |
blueish in color with a small boil in a gew ateas of the pool |
21446 |
23 May 2022 @ 1215 |
--- |
MAB |
a few random bubbles |
19998 |
16 Oct 2021 @ 1202 |
--- |
cb |
Sunday and Colloidal spring's pools have cleared & are no longer murky/muddy pools. |
19920 |
06 Oct 2021 @ 1413 |
--- |
cb |
Pool is cloudy light brown color and more blue green in the center with 2 boiling points on the northern side of the pool and the east end. Colloidal Pool was mostly blue green and fairly clear for the past few weeks. Today it looks like thick chocolate milk. it has a few boils on the north end of the pool closest to Constant. |
29884 |
20 Jul 2000 @ 1200 |
--- |
research-mab |
7/20 - no time noted - "weak Disturbance" Scummy Pool, Colloidal Pool and Sunday Geyser are all “muddy”. |
30003 |
09 Sep 1997 @ 1200 |
--- |
research-mab |
9/9/1997 - no time noted - Colloidal Pool and Sunday geyser are more transparent and blue than their previous opaque opalescence. Less silica, more sulfur ? {? is in original mab} |
30029 |
19 Jun 1996 @ 1200 |
--- |
research-mab |
6/19/1996 - no time noted - Sunday geyser has become clear from its normal cloudy blue color. |
30286 |
25 Aug 1993 @ 1200 |
--- |
research-mab |
8/25/1993 - no time noted - Sunday Geyser cleared up from milky to clear & bottom topography visible. |
30562 |
22 Jul 1991 @ 1200 |
--- |
research-mab |
7/22/1991 - no time noted - Sunday Geyser level even lower today. |
30559 |
20 Jul 1991 @ 1200 |
--- |
research-mab |
7/20/1991 - no time noted - Sunday Geyser water level down 6”-8” |
30509 |
16 May 1991 @ 1200 |
--- |
research-mab |
5/16/1991 - no time noted - Sunday Geyser – greenish brown with a bubbly foam over ½ of surface. |
30674 |
06 Sep 1990 @ 1200 |
--- |
research-mab |
9-6 - no time noted - disturbance continues Many beautiful delicate bubbles dancing on the surface of Sunday Geyser. |
30663 |
03 Sep 1990 @ 1200 |
--- |
research-mab |
9/3/90 - no time noted -Colloidal Pool, Sunday geyser and the pool between Sunday Geyser and the Boardwalk are silty and over flowing. More new frying pan fumeroles on the opposite side of the board walk.
The algae runoff channels near the board walk crossing Porcelain are white and silty. I wonder if it is the silt or a surge of hotter water that kills the algae. It smells like low tide. |
30843 |
16 Aug 1988 @ 1200 |
--- |
research-mab |
8/16/1988 - no time noted - Sunday Geyser now has grey black bubbles on the surface of the pool near its vent which appear to persist for a long time. |
30807 |
03 Jul 1988 @ 1200 |
--- |
research-mab |
7/3/1988 - no time noted - Sunday Geyser has a lot of black near the vent. |
28989 |
23 Aug 1987 @ 1200 |
--- |
research-mab |
8-23-87- no time noted - Sunday Geyser is putting out a lot of black granular sediment. |
33466 |
26 Apr 1987 @ 1200 |
--- |
research-mab |
04/26/1987 – no time noted - Sunday Geyser– Calm boil over northwestern edge of crater, maybe 1 foot high. No sign of a “major” eruption. |
33446 |
09 Oct 1986 @ 1200 |
--- |
research-mab |
10/09/1986 – no time noted - Sunday Geyser – muddy and boiling constantly. |
33431 |
06 Oct 1986 @ 1200 |
--- |
research-mab |
October 6, 1986 - no time noted - *SUNDAY GEYSER has turned into a gray constant boiler...muddy. |
33679 |
21 Aug 1985 @ 1200 |
--- |
research-mab |
8/21/1985 - no time noted - Basin Geyser = 203º Water erupting ½ to 1 foot in a rock crevice on the middle of the side nearest the boardwalk – on the side of the pool
Sunday Geyser Pool = 183º = bubbling (low) in the center of the pool
Colloidal Pool = 178º- pool looked all calm, no main bubbling or boiling in the pool. |
30916 |
08 May 1985 @ 1200 |
--- |
research-mab |
Wednesday May 8 1985 - no time noted - Sunday G. has mild bubbling toward its northern end; both it and Colloidal Pool are opalescent blue and fairly calm. |
31029 |
02 Sep 1984 @ 1200 |
--- |
research-mab |
9/2/1984 - no time noted - Much activity on Porcelain compared to normal. The run off on Sunday Geyser has increased dramatically! Temperature on Sunday geyser is 180ºF up 6ºF from what it was all summer! |
7620 |
11 Feb 1984 @ 1800 |
--- |
research-mab |
02/11/1984 Sunday Geyser – Dormant, opal blue mod turbid, gasy at NW end 120gpm 85º |
31158 |
29 Aug 1983 @ 1200 |
--- |
research-mab |
8/29/1983 temperatures - no time noted - Sunday Geyser opalescent, 1-3” bubbling in NW end of pool, inactive as geyser, 193ºF |
31057 |
30 May 1983 @ 1800 |
--- |
research-mab |
May 30 1983 - no time noted - Sunday eruption 2’ (3) from NE edge of pool |
31087 |
21 May 1983 @ 1200 |
--- |
research-mab |
May 21 1983 – no time noted ~morning {Observations from ~0900 to 1154 in Porcelain Basin, and 1530 to 1745 in the Back Basin.}
Sunday – Doming and splashing up to 3 feet. It looks a little stronger than last night. The water is opaque light grey, and there is little runoff. |
31079 |
20 May 1983 @ 1200 |
--- |
research-mab |
May 20 1983 - no time noted - Disturbance!... Sunday- Boiling up 2 feet approximately. The water is murky grey. |
31048 |
19 Feb 1983 @ 1200 |
--- |
research-mab |
2/19/1983 - no time noted - Sunday Geyser 194º “boiling” to 6” slightly turbid light blue |
31368 |
13 Aug 1982 @ 1200 |
--- |
research-mab |
8/13/1982 - no time noted - Sunday has very milky white H20 |
31347 |
17 Jul 1982 @ 1201 |
--- |
research-mab |
Some Temps from Porcelain Basinland taken on July 17th - no time noted - Sunday 192º light blue milky slightly turbid H20 splashing to 6’. |
31331 |
17 Jul 1982 @ 1200 |
--- |
research-mab |
July 17, 1982 - no time noted - Sunday periodic to 10 feet |
31322 |
09 Jul 1982 @ 1045 |
--- |
research-mab |
July 9th 1982 - inferred time TM in basin 1045 = Sunday Geyser - Constant bursting eruptions from 1 to 6 feet= bursting sometimes not quite as high as yesterday. Sometimes today over 6 feet to boardwalks level or higher – saw once it going to about 4 to 5 feet over the boardwalk. |
4665 |
08 Jul 1982 @ 1800 |
--- |
research-mab |
7/8/1982 Sunday Geyser – Occasionally bursts to height of boardwalk Tomas |
31318 |
08 Jul 1982 @ 1500 |
--- |
research-mab |
July 8th – approx afternoon time ~TM in Porcelain 1400-1845 - Sunday Geyser Constant very heavy surging- water from 2 feet to 6 feet, sometimes higher= once saw it go to 1 or 2 feet above the boardwalk. |
31276 |
06 Jul 1982 @ 1924 |
--- |
research-mab |
7/6/1982 Observations by DScheel + GSchrayer - Arrived 1924 - Sunday greyish-splashing; murky runoff from Blue; Graceful eruptions visible form Visitors Center |
31280 |
06 Jul 1982 @ 1600 |
--- |
research-mab |
July 6 - inferred approx time - The CHANGE in features occurred between 1230 and 1345 – for both basins.Colloidal – turbid and boiling, light brown color - Sunday Geyser – grey brown - ↑activity, ↑overflow |
31285 |
06 Jul 1982 @ 1520 |
--- |
research-mab |
July 6 - approx time - The CHANGE in features occurred between 1230 and 1345 – for both basins - Temperatures taken at 1505-1600 :-
Sunday Geyser – actively spouting to 1-2’, main pool 200º, 2nd pool 190º |
31257 |
20 Feb 1982 @ 1200 |
--- |
research-mab |
February 20 1982 - no time noted - Sunday Geyser 196º pool temp. Still a beautiful blue but not so much debris is being brought up. |
31201 |
15 Jan 1982 @ 1200 |
--- |
research-mab |
January 15th, 1982 - no time noted -Sunday Geyser vent splashing 3’ but only from 1 vent instead of 3; 200º. Pool in Sunday’s runoff is 192º bubbling vigorously in center b ringing up gravel & debris surrounded by beautiful bright blue slightly turbid H20. Very pretty! |
31588 |
11 Dec 1981 @ 1200 |
--- |
research-mab |
Dec 11 1981 - no time noted - Sunday Geyser 184º vigorous boil to 1 ½ ‘ no evidence of eruption. The 2nd pool from the vent is vigorously boiling to 8”. The boil is bringing up gravel & debris making it look similar to the larger circular pool in the Muddy Sneaker Complex this summer; light blue with a brown center. I don’t remember anything being here this summer except a wide run off channel. It now obviously has its own vents though. Pool temp. is 196º |
31540 |
31 Aug 1981 @ 1200 |
--- |
research-mab |
Monday Aug 31 1981 - no time noted - Sunday 201° |
4653 |
27 Aug 1981 @ 1600 |
--- |
research-mab |
8/27/1981 (Undated in log – placed on 27th based on log order) Lognote: Sunday Geyser is erupting at maximum 15 feet, but most eruptions are in the 5-10 foot ranges. The major activity is out of the left vent as seen from Africa, but there are quite a few comparable bursts out of the right vent. The action from the right vent increases as the left vent wanes. Activity in the left vent continues through the quiet period, so I’ve stopped using that as start of preplay. I am still using the start of 5 foot play from the left vent as the start of majors. Grover S |
4863 |
26 Aug 1981 @ 1800 |
--- |
research-mab |
8/26/81 The museum crew left today. They did an absolutely fantastic job. Gave them a final intimate tour of Porcelain Basin. Everything erupted for them (Sunday, Fireball, Arsenic, Basin, Constant, Big Whirligig, Splutter Pot, Blue and Graceful) |
4650 |
22 Aug 1981 @ 1930 |
--- |
research-mab |
8/22/1981 Sunday Geyser is resuming its behavior of Aug 7. The left vent as seen from Africa is occasionally having bursts of 20 feet or so, but most are 12 feet. Activity is continuous through quiet period. The minor activity is splashing 2 feet with occasional 3 ft bursts all from the right vents. I record start of preplay as when action starts in the left vent. Start of major play is when I saw bursts of more than 5 ft or so out of the left vents.
Some eruptions are split in two by a quiet period that looks similar to preplay. The second is larger than the first of the 2. |
4651 |
22 Aug 1981 @ 1835 |
--- |
research-mab |
8/22/1981 Sunday Some bursts from right vent as seen from Africa geyser are as large as the left vent bursts. These come as activity in left vent subsides. Sunday’s majors are synchronous with Africa crater fills. Africa is filling to within 3 inches of crater rim. The second eruption of those separated by a 2m interval did not have the accompanying Africa of other majors. Grover Schrayer III |
4642 |
14 Aug 1981 @ 1200 |
--- |
research-mab |
8/14/1981 Sunday Geyser - no times - Sunday is constantly active with irreg. increases and decreases in eruption. The eruptions at their heights are smaller than last week. Times of major eruptions are rather impossible to determine being so indistinct. I saw no water in Africa geyser crater. Arsenic Geyser is in perpetual spluttering as is Moxie and 2 other small spouters. Fireball is somewhat weak. Grover Schrayer III |
31510 |
13 Aug 1981 @ 1200 |
--- |
research-mab |
Aug 13 1981 - no time noted - Arsenic and Sunday geyser were also perpetually playing. |
4658 |
07 Aug 1981 @ 1800 |
--- |
research-mab |
8/7/1981 Today I saw no water in Africa’s crater. If it is still filling in concert with Sunday’s majors it certainly isn’t visible from the boardwalk. Sunday isn’t as regular as July 30th. Also, some of the eruptions come in 2 parts separated by a lull in major activity. After the pause the eruption comes back, usually stronger. The eruptions are in the 15-20 foot range. Grover Schrayer III |
4639 |
30 Jul 1981 @ 1900 |
--- |
research-mab |
7/30/1981: Sunday doesn’t drain as it has in weeks past. The eruption now takes place out of numerous vents apparently along a fissure. As seen from Africa, the left vent erupts the highest (closest to trail), but the former major vent still has bursts to equal it. Boiling and small eruptions are continuous through the quiet period. Africa is filling higher in the crater again. It still fills in concert with Sunday preplay. Africa is filling to 2 inches from the rim. The strongest part of
Sunday’s major seems to come with start of drain of Africa. After major activity subsides in all vents, the old major vent has some six foot bursts, but soon quiets to 2-3 feet doming. Report and observations by Grover Schrayer III |
4638 |
27 Jul 1981 @ 1900 |
--- |
research-mab |
7/27/1981 *Sundays eruptions are weaker than last week. The former minor vent is starting the main action, but all the {vents? Missing word} are involved in the eruption. Noticed small frying pan type bubblers in Sunday’s runoff channel. Grover |
4636 |
26 Jul 1981 @ 1900 |
--- |
research-mab |
7/26/1981 Sunday Geyser eruptions seem weaker today |
31429 |
24 Jul 1981 @ 1900 |
--- |
research-mab |
July 24, 1981 - no time noted - Hutchinson here this evening. We dropped a plumb line down Echinus- 28 ft 7inches from rim to bottom of vent and Sunday Geyser – 12 ½ feet to bottom of vent. |
4635 |
13 Jul 1981 @ 1900 |
--- |
research-mab |
7/13/1981: Sunday Geyser is still increasing in height. It is having 3 types of eruptions; majors, short majors, and majors coming from left vent as seen from Africa.
For the first several minutes after a major eruption, there is no activity in the craters, but activity steadily increases to a major once it has started. One one eruption today, the left vent took over major play after several seconds of play from both vents.
The activity is about as high from that vent as the other when it is active. The water is ejected in 3 jets, in a fan shape. Grover Schrayer III |
31427 |
10 Jul 1981 @ 1200 |
--- |
research-mab |
Friday July 10 1981 - no time noted - brought down 4 barricades from Mammoth this morning & closed off trail with warning signs by Sunday. The signs read “Scalding Water – Do Not Cross while erupting” And “Extreme Caution – Do not Cross While Sunday Geyser is in eruption”. Sunday Geyser, by the way, is splashing all the way into Hurricane Vent! |
31425 |
09 Jul 1981 @ 1200 |
--- |
research-mab |
Thurs July 9 - no time noted - Sunday is splashing 4’ beyond Hurricane Vent's name sign. And Hurricane Vent sure is down in level (about 1 foot) compared to 3 wks ago during our training. |
31423 |
05 Jul 1981 @ 1200 |
--- |
research-mab |
Sunday July 5 1981 - no time noted - Sunday’s eruptions continue to gain strength. Each has some 4-45 foot bursts. Between majors the activity is mostly heavy boils with occasional periods of 3 ft eruptions. The quiet period is sometimes punctuated by minor short eruptions of larger 10 ft bursts. Looking toward Africa, a vent of Sunday to the left of the main vent is erupting to 2 ft or so. The beginning of Sunday’s majors are still synchronous with Africa’s fill. However, they last well after Africa’s drain. Africa’s fill is only sometimes high enough to be seen from the walk, but each time it tries {?}, it has been synchronous with Sunday’s major start. |
4633 |
04 Jul 1981 @ 1900 |
--- |
research-mab |
7/4/1981: Sunday’s eruptions continue to gain strength. Each has some 40-45 foot bursts. Between majors the activity is mostly heavy boils with occasional periods of 3 ft eruptions.
The quiet period is sometimes punctuated by minor short eruptions of larger 10 ft bursts. Looking toward Africa, a vent of Sunday to the left of the main vent is erupting to 2 ft or so. The beginning of Sunday’s majors are still synchronous with Africa’s fill. However, they last well after Africa’s drain. Africa’s fill is only sometimes high enough to be seen from the walk, but each time it tries {?}, it has been synchronous with Sunday’s major start. |
33728 |
30 Jun 1981 @ 1200 |
--- |
research-mab |
6-30-81 - no time - Norris Geyser Basin Measurements: Sunday Geyser EW 5.3 m, NS 3.1m max height 10m |
4632 |
28 Jun 1981 @ 1900 |
--- |
research-mab |
6/28/1981: Sunday is erupting over the boardwalk frequently & the water is HOT! I’ve noticed people standing next to it to have their pictures taken. We may have a problem. |
4631 |
26 Jun 1981 @ 1900 |
--- |
research-mab |
6/26/1981 Sunday bursts every 6-8 min but the intervals have 1-2’ continuous bursts |
4630 |
24 Jun 1981 @ 1900 |
--- |
research-mab |
6/24/1981 Africa and Sunday Geysers still are roughly synchronous on start times, but Sunday continues well after Africa start of drain. Saw one burst from Sunday that surely must have exceeded 35 ft. Difficult to see Africa filling, so starts of Africa’s fills after major start in Sunday could be due to poor visibility from the boardwalk. Sunday had a short eruption resembling a major at 1800:35 Grover S |
4627 |
09 Jun 1981 @ 1200 |
--- |
research-mab |
6/9/1981 - no time noted - SUNDAY Schrayer saw that at each of the first three times Sunday erupted Africa’s pool would be simultaneously full and overflowing. For the fourth eruption of Sunday that Grover caught Africa’s level only came to up to 6 inches below the rim. |
4624 |
04 Jun 1981 @ 1800 |
--- |
research-mab |
6/4/1981 Africa Geyser – dormant, Sunday Geyser active |
4607 |
02 Jun 1981 @ 1200 |
--- |
research-mab |
6/2/1981 - no time - Sunday Geyser Appears to have taken energy from Africa’s system. Eruptions of turbid gray water to 20 feet were occurring every five minutes. Considerable overflow was leaving the area. |
31797 |
22 Sep 1980 @ 1200 |
--- |
research-mab |
Monday Sept 22, 1980 - no time noted - One week following the disturbance, some porcelain basin observations: - Sunday Geyser – somewhat turbid, grey, no overflow 139ºF
= Colloidal Pool – still bubbling with vigor, opaque gray-white |
31754 |
09 Sep 1980 @ 1200 |
--- |
research-mab |
Tuesday Sept 9 1980 - no time noted - Sunday Geyser - murky, calm, slight trickle 139° |
31678 |
24 Jul 1980 @ 1200 |
--- |
research-mab |
Norris July 24, 1980 - no time noted - Sunday Geyser 150° |
31658 |
06 Jul 1980 @ 1200 |
--- |
research-mab |
July 6 1980 - no time noted - Sunday Geyser has risen with the increase in rain. |
5084 |
23 Jun 1980 @ 1800 |
--- |
research-mab |
06/23/1980 Sunday Geyser dropped 6 inches |
31627 |
08 Jun 1980 @ 1200 |
--- |
research-mab |
June 8 1980 - no time noted - Sunday Geyser – full of algae, calm, 127ºF |
32193 |
09 Sep 1978 @ 1200 |
--- |
research-mab |
09/09/1978 - no time noted - Sunday Geyser water 2 feet below crack 196ºF |
32329 |
15 Sep 1977 @ 1200 |
--- |
research-mab |
09/15/1977 - no time noted - The water level in Sunday Geyser has come back up but it is not boiling as it once was. |
32320 |
04 Sep 1977 @ 1200 |
--- |
research-mab |
09/04/1977 -no time noted - Sunday Geyser has drained about a foot back to its former level sans any bubbling. |
5119 |
31 Aug 1977 @ 1800 |
--- |
research-mab |
08/31/1977 Sunday Geyser’s water level has risen approximately 1 ½ feet.
Hurricane Vent’s level has declined 8-10” |
32298 |
19 Aug 1977 @ 1200 |
--- |
research-mab |
08/19/1977 - no time noted - A number of changes in the Porcelain Basin this AM. Much more run-off than earlier and it is somewhat turbid. Congress is murky again instead of blue. Big Whirligig was in eruption at 0830. This is the first observed eruption in several weeks. Sunday Geyser was muddy. |
32359 |
04 Jun 1976 @ 1200 |
--- |
research-mab |
June 4 1976 - no time noted - Sunday Geyser, which usually supports a pool extending NW from the vent, has water only in the vent itself. |
32875 |
30 Sep 1973 @ 1630 |
--- |
research-mab |
09/30/1973 Porcelain Basin 4:30 pm Some bubbling in Sunday & Congress. |
32859 |
27 Sep 1973 @ 1500 |
--- |
research-mab |
Sept 27 1973 - Porcelain Basin 3:00 pm Sunday & Colloidal pools pretty clear |
33151 |
15 May 1972 @ 1200 |
--- |
research-mab |
May 15 1972 - no time - 190F No activity- (a little bubbling) – no overflow – a little gray brown water. Some frying-pan spring activity at the entrance to the little alcove. Some red color in these springs. |
32943 |
11 Sep 1971 @ 1800 |
--- |
research-mab |
09/11/1971 - {afternoon temps 1430-1900} - Sunday 187° minor bubbling |
33152 |
31 Jul 1971 @ 1200 |
--- |
research-mab |
July 31 1971 - no time - No action from geyser, no water flowing from area water 89C (192F) |
33153 |
14 Jul 1970 @ 1200 |
--- |
research-mab |
July 14 1970 - no time - see picture. Aug 18 air 65F water 192F |