Last Known Eruption
47y 291d 8h 53m ago

Interval Statistics

Interval Count26
Min52m
Max10d 20h 13m
Mean2d 6h 35m
Median1d 2h 16m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
31159 29 Aug 1983 @ 1200 --- research-mab 8/29/1983 temperatures - no time noted - Pequito Geyser 140ºF clear water fills up the tiny hole – as well as sticks.
31208 15 Jan 1982 @ 1200 --- research-mab January 15th, 1982 - no time noted - Pequito Geyserº 144º green algae lined.
31601 11 Dec 1981 @ 1200 --- research-mab Dec 11 1981 - no time noted - Pequito 138º dormant
31557 12 Sep 1981 @ 1200 --- research-mab Sept 12 1981 - no time noted - Pequito water is level w/surr. Ground. Clear & calm at 165º
31541 31 Aug 1981 @ 1200 --- research-mab Monday Aug 31 1981 - no time noted - Pequito inactive 167°° water level near surr. grnd
4763 17 Aug 1981 @ 1200 --- research-mab 8/17/1981 - no time noted - Pequito is active today: 2” continuous splash
31513 13 Aug 1981 @ 1200 --- research-mab Aug 13 1981 - no time noted - Pequito Geyser inactive again
31503 10 Aug 1981 @ 1200 --- research-mab Monday Aug 10, 1981 - no time noted - Pequito quiet,
31475 04 Aug 1981 @ 1200 --- research-mab 8/4/81 - no time noted - Pequito Geyser is erupting 6-8” continuous bursts, clear water
4640 02 Aug 1981 @ 1900 --- research-mab 8/2/1981 Pequito Geyser – active ‘n splashing to 8 inches, clear water 165ºF
31465 02 Aug 1981 @ 1200 --- research-mab Sunday August 2 1981 - no time noted - Pequito Geyser – active ‘n splashing to 8 inches, clear water 165ºF
31624 08 Jun 1980 @ 1200 --- research-mab June 8 1980 - no time noted - Pequito Geyser – green algae in vent – 118ºF
31952 20 Sep 1979 @ 1800 --- research-mab Thursday Sept 20 1979 - Disturbance check after 1730 - No activity out of Pequito Geyser.
5098 15 Sep 1978 @ 1800 --- research-mab 09/15/1978 *Pequito Geyser – was erupting! Just 6 to 8 inches though. Temp 189ºF
32192 09 Sep 1978 @ 1200 --- research-mab 09/09/1978 - no time noted - Pequito Geyser – Overflowing again, was dry a week ago. Temp 143ºF
32044 25 Mar 1978 @ 1200 --- research-mab March 25 1978 - no time noted - Pequito & Pinwheel – increased deposition of geyser between them, Pequito discharging steady flow of water.
32309 20 Aug 1977 @ 1200 --- research-mab Aug 20, 1977 - no time noted - Pequito quite active. Africa appears more powerful than before.
5113 19 Aug 1977 @ 1800 --- research-mab 08/19/1977 Pequito and nearby vents are splashing water a couple of inches high. This is the first time I have seen water in these vents since the first of the year.
5104 14 Jun 1977 @ 1800 --- research-mab 06/14/1977 Pequito Geyser – next to no activity. Cone has very interesting sinter deposits. Small amount of H20 coming out.
32591 22 Sep 1976 @ 1200 --- research-mab 09/22/1976 - no time noted - Pequito spraying fine mist up about a foot. The iron oxide deposits in its vent as well as in the surrounding cracks & fissures has darkened considerably.
32582 17 Sep 1976 @ 1300 --- research-mab 09/17/1976 Pequito wasn’t doing anything at 1300. Surrounding cracks were weakly active.
32573 16 Sep 1976 @ 0930 --- research-mab 09/16/1976 Pequito -a very weak fumarole at 0930. Small vents nearby seem to be depositing iron oxide more rapidly.
32563 11 Sep 1976 @ 1200 --- research-mab 09/11/1976 - no time noted - Peuqito puttng out a more powerful jet of steam & the cracks surrounding it are full of water.
32551 08 Sep 1976 @ 0900 --- research-mab 09/08/1976 - inferred approx time - Pequito & area around it – barely putting out steam
32525 03 Sep 1976 @ 1200 --- research-mab 09/03/1976 - no time noted - Pequito dry steam, 2 small rocks jammed in vent 204º
32523 02 Sep 1976 @ 1200 --- research-mab 09/02/1976 - no time noted - Pequito still dry steam vent
5255 31 Aug 1976 @ 1800 --- research-mab 08/31/1976 Pequito has dried up to only steam. There are 5 new cracks in the surrounding area, all producing steam.
5254 30 Aug 1976 @ 1800 --- research-mab 08/30/1976 Pequito hasn’t been seen going higher than 4’ for the last few days. No splashes have been seen at Pinwheel.
5257 26 Aug 1976 @ 1800 --- research-mab 08/26/1976 Pequito is not as high now as previously most of the time only 3’-4’ with occasional periods to 10’
5265 06 Aug 1976 @ 1800 --- research-mab 08/06/1976 Pequito Geyser: Twice today during eruptions of Whirlygig Pequito activity subsided. Activity increased after Whirlygig ceased erupting.
32438 21 Jul 1976 @ 1200 --- research-mab July 21 1976 - no time noted - The boardwalk by Pequito will be moved, probably back away from the geyser, and the observation platform will be closed.
32432 20 Jul 1976 @ 1200 --- research-mab July 20 1976 - no time noted - Porcelain Basin observations in pm: It was noted that as Big Whirligig erupted the height of Pequito increased & Pinwheel showed bubbling activity.
5560 14 Jul 1976 @ 1800 --- research-mab 07/14/1976 Pequito geyser again has been the target for vandals, rocks, some bigger than fist size have been thrown in area, probably to see if geyser will move them out of the way. Also it still appears to be spouting continuously.
5583 14 Jul 1976 @ 0830 --- research-mab 07/14/1976 Pequito was in a forceful water phase at 0830. The eroded channels near the boardwalk were full of water & bubbling quite nicely. Pinwheel was quiet- no bubbles seen at all.
32412 13 Jul 1976 @ 1130 --- research-mab July 13 1976 Pequito sending up a powerful plume of steam (~15’) at 1130
32411 12 Jul 1976 @ 1200 --- research-mab July 12 1976 - no time noted - A new batch of rocks was observed around the vent of Pequito Geyser (which has been showing almost constant activity). There was no noticeable activity at Pinwheel.
5545 09 Jul 1976 @ 1800 --- research-mab 07/09/1976 Pequito seems to be almost constantly emitting steam and/or water 10’-15’
5540 06 Jul 1976 @ 1800 --- research-mab 07/06/1976 Pequito has been acting in its usual pattern while Pinwheel has been ejecting more silt & rather vigorous bubbling.
32389 03 Jul 1976 @ 1200 --- research-mab July 3 1976 - no time noted - I hereby christen the new geyser at the end of the boardwalk in Porcelain Basin, by right of rank, Pequito Geyser. Pronounced Peh-KEE-to. It is Spanish for “little one”. {What Happened to Democracy? Let’s Vote!”
5538 30 Jun 1976 @ 0845 --- research-mab 06/30/1976 New Geyser (called “Fife & Drums” by some, “Frijole” by others) was in a minor water phase at 0845. Eroded channels near boardwalk were dry, but Pinwheel was splashing away and emitting loud popping sounds.
5865 29 Jun 1976 @ 1800 --- research-mab 06/29/1976 {no times noted} Watched new geyser & Pinwheel for 25 min. At beginning of watch, new geyser was erupting about 1’ high & its eroded channel by the boardwalk was dry. Then it began pulsing higher & the channel filled with water. Pinwheel began emitting large bubbles from its vent & splashing as high as 2’ was seen. Big Whirligig began erupting after 5 minutes of this type of play.
32379 25 Jun 1976 @ 1235 --- research-mab June 25 1976 New Geyser at Basin overlook was in steam phase 1235
32374 23 Jun 1976 @ 0830 --- research-mab Wed June 23 1976 New little geyser near end of boardwalk was in a minor water phase at 0830, erosion of area near boardwalk continues to deepen & expand.
5531 20 Jun 1976 @ 1800 --- research-mab 06/20/1976 The new geyser near Pinwheel has opened up a couple of more vents close to the boardwalk. Will have to a watch [sic] on them. The new feature, Pinwheel, and Splutter Pot all seem to be connected.
32370 18 Jun 1976 @ 0825 --- research-mab June 18 1976 - Lots of activity down at the platform in Porc. Basin at 0825. The new spouter was in a strong steam and mist phase. Pinwheel was popping and bursting, and splutter pot was also bubbling.
5530 07 Jun 1976 @ 1800 --- research-mab 06/07/1976 New spouter by Pinwheel quite active -spraying the boardwalk.
5527 02 Jun 1976 @ 1800 --- research-mab 06/02/1976 One of the little bubblers near the boardwalk near the platform in Porc. Has become a spouter shooting steam and water 6’-10’. Could be a problem if wind blowing wrong.
No attachments for this geyser.
Baseline does not exist.