Last Known Eruption
19y 274d 20h 24m ago

Latest Eruptions

Eruption DurationInterval
26 Sep 2004 @ 0000 A2y 71d 10h 0m
17 Jul 2002 @ 140012d 29m
05 Jul 2002 @ 13311y 140d 21h 37m
14 Feb 2001 @ 1454231d 3h 42m
28 Jun 2000 @ 1212340d 20h 24m
23 Jul 1999 @ 15483d 2h 33m
20 Jul 1999 @ 131522h 20m
19 Jul 1999 @ 145512d 4h 50m
07 Jul 1999 @ 10051y 13d 23h 18m
23 Jun 1998 @ 10472m 3y 318d 17h 30m
09 Aug 1994 @ 1717 ie2m
09 Aug 1994 @ 17152h 0m
09 Aug 1994 @ 1515 ie1y 23d 5h 40m
17 Jul 1993 @ 0935 ? ie294d 17h 28m
25 Sep 1992 @ 1607 ie71d 8h 5m
16 Jul 1992 @ 0802 ie2d 0m
14 Jul 1992 @ 080245d 21h 47m
29 May 1992 @ 1015 A8d 23h 50m
20 May 1992 @ 1025 ie274d 17h 41m
19 Aug 1991 @ 1644 A14d 1h 10m
05 Aug 1991 @ 1534 ie6d 7m
30 Jul 1991 @ 15278m 51d 6h 27m
09 Jun 1991 @ 0900 ie288d 20h 19m
24 Aug 1990 @ 124110m 13d 15h 45m
10 Aug 1990 @ 20565d 6h 47m
05 Aug 1990 @ 14096m 4d 17m
01 Aug 1990 @ 13523m 7d 21h 22m
24 Jul 1990 @ 1630 A36d 4h 39m
18 Jun 1990 @ 11518m 1d 19h 27m
16 Jun 1990 @ 1624237d 1h 18m
22 Oct 1989 @ 1506 ie7d 3h 38m
15 Oct 1989 @ 1128 ie1d 23m
14 Oct 1989 @ 1105 ie21d 22h 58m
22 Sep 1989 @ 1207 ie11d 23h 4m
10 Sep 1989 @ 1303 ie10d 38m
31 Aug 1989 @ 1225 ie20h 13m
30 Aug 1989 @ 161236d 2h 37m
25 Jul 1989 @ 133513d 23h 33m
11 Jul 1989 @ 1402 ie14d 14h 2m
27 Jun 1989 @ 00002d 0m
25 Jun 1989 @ 0000 A9d 15h 46m
15 Jun 1989 @ 081417m 41s 2d 4h 41m
13 Jun 1989 @ 03338m 38s 10h 33m
12 Jun 1989 @ 1700 A>5m 23h 56m
11 Jun 1989 @ 17049m 35s 13h 34m
11 Jun 1989 @ 0330 A10h 56m
10 Jun 1989 @ 163421m 43s 1d 20h 50m
08 Jun 1989 @ 19446m 37s 12h 15m
08 Jun 1989 @ 07294m 39s 1d 3h 59m
07 Jun 1989 @ 0330 A12h 34m
06 Jun 1989 @ 14565m 54s 9h 48m
06 Jun 1989 @ 050817m 55s 1d 18h 37m
04 Jun 1989 @ 10319m 42s 8h 55m
04 Jun 1989 @ 013610m 44s 20h 43m
03 Jun 1989 @ 04538m 3s 11h 10m
02 Jun 1989 @ 1743 ie7-9m10h 13m
02 Jun 1989 @ 0730 A1d 22h 1m
31 May 1989 @ 092910m 37s 9h 29m
31 May 1989 @ 0000 A16h 50m
30 May 1989 @ 071012m 31s 7h 58m
29 May 1989 @ 23129m 10s 10h 2m
29 May 1989 @ 131016m 44s 1d 23h 31m
27 May 1989 @ 133913m 2s 12h 9m
27 May 1989 @ 0130 A15h 55m
26 May 1989 @ 0935 A8h 59m
26 May 1989 @ 00367m 55s 8h 16m
25 May 1989 @ 162018m 38s 1d 8h 24m
24 May 1989 @ 07567m 22s 10h 16m
23 May 1989 @ 214010m 39s 17h 40m
23 May 1989 @ 0400 A8h 23m
22 May 1989 @ 19376m 14s 9h 6m
22 May 1989 @ 1031 ie>4.5m 317d 19h 31m
08 Jul 1988 @ 1500 A6y 5d 7h 30m
05 Jul 1982 @ 073047d 11h 15m
18 May 1982 @ 201510m 3h 15m
18 May 1982 @ 1700277d 7h 37m
14 Aug 1981 @ 09233d 19h 2m
10 Aug 1981 @ 14213d 3h 26m
07 Aug 1981 @ 1055 ie4d 21h 15m
02 Aug 1981 @ 13401d 1h 5m
01 Aug 1981 @ 123510+3d 18h 35m
28 Jul 1981 @ 1800 ie10h 0m
28 Jul 1981 @ 0800 ie21h 4m
27 Jul 1981 @ 10562d 22h 42m
24 Jul 1981 @ 1213:304d 16h 48m
19 Jul 1981 @ 1925 A8h 27m
19 Jul 1981 @ 1058 ie1d 14h 57m
17 Jul 1981 @ 200111h 10m
17 Jul 1981 @ 0851 ie3d 17h 7m
13 Jul 1981 @ 154433m 286d 15h 44m
30 Sep 1980 @ 0000 A1d 10h 15m
28 Sep 1980 @ 1345 A1d 22h 25m
26 Sep 1980 @ 1520 ie14d 3h 40m
12 Sep 1980 @ 1140 ie2d 20h 40m
09 Sep 1980 @ 1500 A4d 3h 45m
05 Sep 1980 @ 1115 A2d 20h 25m
02 Sep 1980 @ 145021h 50m
01 Sep 1980 @ 1700 A23h 58m
31 Aug 1980 @ 17025m 15s 5d 34m
26 Aug 1980 @ 16288d 7h 8m

Interval Statistics

Interval Count100
Min2m
Max6y 5d 7h 30m
Mean88d 1h 6m
Median2d 20h 32m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
4726 18 Sep 2000 @ 0900 --- research-mab 09/18/2000 Valentine steam phase 0900-1100
30195 31 Aug 1994 @ 1200 --- research-mab 8/31/1994 - no time noted -. Met w/a geyser gazer who saw Ledge start on 8/28. he said from the boardwalk heading towards Dark Cavern he saw water spouting from Valentine & Guardian.
30317 26 Apr 1992 @ 1200 --- research-mab 4/26/1992 - no time noted - Valentine – lightly steaming
30534 23 Jun 1991 @ 1200 --- research-mab 6/23/91 - no time noted - visited Guardian Geyser & Valentine Geyser. Guardian’s cone is deep orange-brown & wet, although there wasn’t a distinct run-off from Guardian. Valentine appears t
30650 30 Jul 1990 @ 1200 --- research-mab 7/30/90 - no time noted - Valentine Geyser is creating a distinct runoff channel.
30645 11 Jul 1990 @ 1200 --- research-mab 7/11/1990 - no time noted - Valentine very active late this afternoon more than just steam, spurts of H20 ↑10’
4712 09 Jul 1990 @ 1800 --- research-mab 7/9/1990 Valentine very active late this afternoon more than just steam, spurts of H20 ↑10’
7615 11 Feb 1984 @ 1800 --- research-mab 02/11/1984 Valentine Geyser Dormant
31252 20 Feb 1982 @ 1200 --- research-mab February 20 1982 - no time noted - Valentine Geyser 200º marker in place- gently steaming
31195 15 Jan 1982 @ 1200 --- research-mab January 15th, 1982 - no time noted -Valentine 202º marker blown 8’ from vent so probably is active, steaming gently.
31792 22 Sep 1980 @ 1200 --- research-mab Monday Sept 22, 1980 - no time noted - One week following the disturbance, some porcelain basin observations: Valentine Geyser – also splashing 204ºF
31732 06 Sep 1980 @ 1200 --- research-mab Sat Sept 6 1980 - no time noted - Valentine Geyser – steaming 203°F – replaced marker
31674 22 Jul 1980 @ 1315 --- research-mab Porcelain report 7/22/80 Porcelain 1:15-1:30: - Valentine – heavy steam, five minutes
31611 08 Jun 1980 @ 1200 --- research-mab June 8 1980 - no time noted - Valentine Geyser- steaming, last fall’s marker gone, 203ºF
31984 27 Sep 1979 @ 1200 --- research-mab September 27 1979 - no time noted - Valentine 201ºF marker in place
31947 20 Sep 1979 @ 1800 --- research-mab Thursday Sept 20 1979 - Disturbance check after 1730 - Valentine- marker stick gone, but no real evidence of an eruption. Stick replaced on cone. Temp. 200ºF
31926 11 Sep 1979 @ 1200 --- research-mab Sept 11 1979 -no time noted - Temps taken in Porcelain this AM - Valentine 200° - chugs while Dark Cavern is erupting
31888 09 Aug 1979 @ 1200 --- research-mab Aug 9 1979 - no time noted - Valentine’s marker is still in place.
32237 06 Nov 1978 @ 1200 --- research-mab 11/06/1978 - no time noted - Valentine has not erupted as the marker stick placed on the cone in July was still in place. Temp 202ºF-steam
32186 03 Sep 1978 @ 0940 --- research-mab 09/03/1978 - - inferred approx time - Valentine has definitely not had an eruption for over a month. Stick marker placed on it in July is still there.
5110 05 Jul 1977 @ 1800 --- research-mab 07/05/1977 Tom you were right about Valentine & Guardian. At 1133 Valentine erupted causing Guardian to go into heavy steam phase and by 1134 it went into eruption.
32335 17 May 1976 @ 1200 --- research-mab May 17 1976 - no times noted - saw the following geysers in action:African (continuous), Constant, Big whirligig, Valentine, Dark Cavern, Vixen, Corporal, (Fan?)
5522 16 May 1976 @ 1800 --- research-mab 05/16/1976 saw Valentine erupting {no time in log}
5812 07 Sep 1974 @ 1800 --- research-mab 09/07/1974 Valentine = marker gone {no time-prob a.m.}
32881 02 Oct 1973 @ 1200 --- research-mab 10/02/1973 - no time noted - Ledge and Valentine markers were replaced. As noted on Sept 20 Ledge & Valentine played together again although neither one was seen in eruption. When I left yesterday afternoon at 6:00 pm Ledge had very heavy splashing.
32741 08 Aug 1973 @ 0800 --- research-mab 08/08/1973 - Valentine in steam 0800
5983 05 May 1973 @ 1800 --- research-mab 05/05/1973 Valentine – is still apparently on the interval of playing once every night, marker replaced 0800
5979 30 Apr 1973 @ 1800 --- research-mab 04/30/1973 Valentine Geyser – Summary of Activity 4/1-4/31 There were 31 eruption intervals over a 716 hour period, averaging out to 23.1 hours with the estimated range being 18 to 26 hours.
5943 31 Mar 1973 @ 1800 --- research-mab 03/31/1973 Valentine Summary There were 19 eruption intervals over a 501.7 hour period, averaging out to 26.4 hours with the estimated range being 23 to 27 hours. Guardian Geyser, which only plays immediately before or after an eruption of Valentine, was irregular, playing 11 out of the 20 possible times.
5938 19 Mar 1973 @ 1800 --- research-mab 03/21/1973 Valentine in later part of steamphase from eruption at 1800
32730 18 Mar 1973 @ 1200 --- research-mab 03/18/1973 - no time noted - Valentine cone is covered with dark red sinter 200º
32931 28 Sep 1972 @ 0915 --- research-mab 09/28/1972 - Valentine marker replaced 9:15 am, because of weather conditions the last few days markers haven’t been checked since 9/26/72 am so have no estimate on eruption. Ebony and Ledge still marked.
6467 20 Sep 1972 @ 1500 --- research-mab 09/20/1972 Valentine marker replaced 3:00 pm – did not see eruption
33336 30 Jun 1972 @ 1200 --- research-mab 1972 –- no time - Active all summer with an average of about 2.7 days from May 15 to June 30. {May 15 178 F}
32945 11 Sep 1971 @ 1800 --- research-mab 09/11/1971 - {afternoon temps 1430-1900} - Valentine 201° up 9° 7/31/71 (steam temp) more leaks active around vent
33339 30 Jul 1971 @ 1200 --- research-mab July 30 1971 - no time - Has erupted on July 15 and more steam coming from base of vent to the west. Steam- 89C (192F)
6556 15 Jul 1971 @ 0800 --- research-mab 07/15/1971 Valentine Geyser & Guardian Geyser played sometime during the night. There is an increase in steam activity all around the Valentine, especially at Black Growler.
6555 12 Jul 1971 @ 1800 --- research-mab 07/12/1971 Valentine had a steam “eruption” this evening (about 6) which included a small quantity of water which reach [sic] heights of 20 feet. No appreciable amount of runoff. Markers did not need replacing.
6551 01 Jul 1971 @ 0805 --- research-mab 07/01/1971 Valentine marker in place, however it was throwing about 2-3 times as much water out as normal as indicated by the height of the water jets & by the amount of water in the runoff channel at 8:05; all others in place.
33342 08 Sep 1970 @ 1200 --- research-mab – no time - Valentine Geyser played on Sept 5 1970. Mr Mills saw the geyser, it also erupted on Sept 7 and 8th; at last the markers were replaced. This is the first eruption seen since Aug of 1968.
33341 07 Sep 1970 @ 1200 --- research-mab – no time - Valentine Geyser played on Sept 5 1970. Mr Mills saw the geyser, it also erupted on Sept 7 and 8th; at last the markers were replaced. This is the first eruption seen since Aug of 1968.
33340 05 Sep 1970 @ 1200 --- research-mab – no time - Valentine Geyser played on Sept 5 1970. Mr Mills saw the geyser, it also erupted on Sept 7 and 8th; at last the markers were replaced. This is the first eruption seen since Aug of 1968.
33338 14 Jul 1970 @ 1200 --- research-mab July 14 1970 - no time - The geyser cone has green plant life on the sides, steam coming out under little pressure.
33337 30 Jun 1970 @ 1200 --- research-mab Valentine Geyser June 1970 [- no time -no date in Thermal Record – EOM] -Valentine is inactive as last year. A little hot steam and water only.
7511 04 Jun 1969 @ 0800 --- research-mab 06/04/1969 Valentine was putting forth small jets of H2O this morning and did have considerable runoff. However, marker was in place.
33381 24 Aug 1968 @ 1200 --- research-mab 08/24/1968 - no time - Valentine Aug 24 ? Most of marker gone.
7451 22 Aug 1968 @ 0800 --- research-mab 08/22/1968 Valentine shooting H2O some ten feet into air. {no time}
33380 14 Aug 1968 @ 1200 --- research-mab 08/14/1968 Valentine Aug 14th, has not played yet
33379 11 Jul 1968 @ 1200 --- research-mab 07/11/1968 - no time - Valentine July 11, has not played yet
33378 13 Jun 1968 @ 1200 --- research-mab 06/13/1968 - no time - Valentine June 13, marker partly gone (rain?)
33377 11 Jun 1968 @ 1200 --- research-mab 06/11/1968 - no time - Valentine Marked Jun 11th, had been marked about the 8th
7375 27 Oct 1967 @ 0800 --- research-mab 10/27/1967 Valentine – still nothing.
7371 10 Oct 1967 @ 0800 --- research-mab 10/10/1967 Valentine – still hasn’t played.
7365 27 Sep 1967 @ 1800 --- research-mab 09/27/1967 Valentine Still hasn’t erupted.
20373 20 Jul 1967 @ 1200 --- research-mab 07-20-1967 - no time - Valentine chart in back of log: Valentine markers washed July 20, 23, 29, Aug 1
32994 09 Jul 1967 @ 1200 --- research-mab 07/09/1967 - no time noted - Very heavy rain last night. Just west of Valentine a large section of the alcove wall has collapsed during the night leaving a hole about 4 ft by 3 ft and exposing a large cavern beneath the hill. There is no activity in the cavern. The sinter covering appeared to have been about 3 in thick and showed signs of steam vent activity on its underside (sulphur growths)
20372 20 Jun 1967 @ 1200 --- research-mab June 20 1967 - no time - Valentine chart in back of log: markers replaced June 20, 26, 28, July 3, July 7 inferring intervals of 2-7 days
7174 12 Aug 1966 @ 1000 --- research-mab 08/12/1966 Valentine In weak steam phase at 10 am
7154 03 Aug 1966 @ 0800 --- research-mab 08/03/1966 Valentine erupted early this am everything wet marker replaced. - marker survived rain this afternoon fairly well.
6984 22 Aug 1965 @ 0800 --- research-mab 08/22/1965 Valentine – Refurbished marker. Rain apparently had washed most of the old one away. Green algae is becoming very apparent on the sides of the cone.
6910 05 Jul 1965 @ 0800 --- research-mab 07/05/1965 Valentine – Played early AM. Still in steam phase (mild) at 8 AM.
6906 02 Jul 1965 @ 1000 --- research-mab 07/02/1965 Valentine – Putting out enough spray at 10:00 to wet visitors going down walk, not enough to remove marker.
6881 17 Jun 1965 @ 1800 --- research-mab 06/17/1965 Valentine – Have not as yet seen it erupt (I doubt that it does)
6838 05 Aug 1964 @ 0800 --- research-mab 08/05/1964 Valentine during night. Ledge no action. {Typical daily note each morning in log.- mab}
33584 31 Jul 1961 @ 1200 --- research-mab - no times noted July report - Schroeder and DeSanto [RG06 S1 Box 21]: Valentine average one eruption in 24 hrs.
33564 28 Jun 1961 @ 1200 --- research-mab - no times noted - It is reported that Valentine erupted on June 2. Since June 12, three eruptions have been reported. The first, at 9:50 AM on June 15, played to a height of 40-50 feet with a duration of 40 minutes. The other observed eruptions occurred on June 25 and June 27. No interval has been established.
10806 01 Jul 1933 @ 0000 --- research-mab Report for June 1933: Valentine Geyser – plays 100 ft. with eruptions lasting 2 ½ hrs with maximum height maintained usually for ½ hour.
EntrySourceLinkComment
28 Oct 1952 @ 1519 mhreed http://purl.clemson.edu/FF99996CB7D0DE767BF649099FD0F731 Photo of an eruption on this day on page 77 of a black album (3a) scanned from the park archives.
Baseline does not exist.