Recent Geyser Activity
Interval Between Eruptions 
Most recent data collected 31 December 2004
           
Compiled By Ralph Taylor
Activity for the most recent week with recorded activity
Geyser Start Date Last Update Intervals Min Mean Median Max Coef. Of Variation
Aurum 24-Dec-04 31-Dec-04 39 02:47 04:14 03:30 08:50 36.05%
Beehive 24-Dec-04 31-Dec-04 12 10:47 14:01 13:30 17:25 15.22% No known missed eruptions
Boardwalk 18-Sep-04 25-Sep-04 181 00:31 17:05 03:07 311:47 264.73%
Depression 24-Dec-04 31-Dec-04 13 08:53 10:26 10:02 14:44 14.96%
Lion (series) 24-Dec-04 31-Dec-04 16 06:35 10:35 10:40 14:53 22.81%
Little Cub 24-Dec-04 31-Dec-04 123 00:52 01:37 01:02 51:22 279.26% Still having long intervals some days
Little Squirt 24-Dec-04 31-Dec-04 2 70:34 76:32 76:32 82:30 11.03%
North Goggles 24-Dec-04 31-Dec-04 0 -- -- -- -- -- Last recorded eruption was 30 September 
Plate 24-Dec-04 31-Dec-04 40 01:16 04:13 03:08 38:19 138.34%
Plume 24-Dec-04 31-Dec-04 139 0:50 1:12 1:08 9:27 59.86% Reactivated 1 September, went dormant at 00:44 on 8 September
                 
Artemisia 24-Dec-04 31-Dec-04 12 10:29 14:52 14:17 21:38 20.93%
Baby Daisy 24-Dec-04 31-Dec-04 1 00:59 00:59 00:59 00:59 --
Castle (w/o minors) 24-Dec-04 31-Dec-04 10 12:44 12:58 12:55 13:20 1.69%
Castle (minor-major) 24-Dec-04 31-Dec-04 2 03:46 06:08 06:08 08:30 54.57%
Castle (1st post minor) 24-Dec-04 31-Dec-04 2 13:50 13:52 13:52 13:54 0.34%
Daisy 24-Dec-04 31-Dec-04 51 02:20 03:18 02:56 16:17 59.20%
Grand 24-Dec-04 31-Dec-04 24 06:20 07:11 06:59 09:08 10.89%
Grotto 24-Dec-04 31-Dec-04 14 04:44 11:34 06:22 39:40 102.07%
Grotto (marathons) 24-Dec-04 31-Dec-04 3          
Oblong 24-Dec-04 31-Dec-04 34 02:42 05:03 04:43 15:45 43.16%
Old Faithful (all intervals) 24-Dec-04 31-Dec-04 110 01:00 01:32 01:33 01:49 9.10%
Old Faithful (Long) 24-Dec-04 31-Dec-04 105 01:17 01:33 01:33 01:49 7.25%
Old Faithful (Short) 24-Dec-04 31-Dec-04 5 01:00 01:09 01:10 01:14 7.80%
Pyramid 4-Sep-04 11-Sep-04 55 02:37 03:06 03:01 04:06 11.79% Logger went missing after 11 Sep download
Rift 24-Dec-04 31-Dec-04 11 12:29 15:03 14:07 26:03 24.87%
Riverside 24-Dec-04 31-Dec-04 27 05:55 06:07 06:04 06:44 3.74%
Riverside (Long) 24-Dec-04 31-Dec-04 4 06:34 06:38 06:38 06:44 1.20%
Riverside (Short) 24-Dec-04 31-Dec-04 23 05:55 06:02 06:03 06:10 1.15%
West Triplet 24-Dec-04 31-Dec-04 26 02:30 06:43 06:40 12:38 37.45% Gap in data from 15 Sep to 19 Sep
   
Spouter 24-Dec-04 31-Dec-04 37 02:53 04:36 04:18 08:00 24.22%
   
Fountain Geyser 27-Oct-04 3-Nov-04 31 01:17 05:34 05:49 13:12 34.73%
Great Fountain 31-Oct-04 7-Nov-04 7 10:34 12:05 12:07 14:06 10.16%
Pink Geyser 27-Oct-04 3-Nov-04 30 05:13 05:49 05:43 07:49 8.67%
   
Echinus 23-Sep-04 30-Sep-04 47 03:06 03:34 03:33 04:12 6.41%
   
Hillside 16-Sep-04 23-Sep-04 3 23:56 43:28 36:43 76:32 53.86%
Lone Pine 16-Sep-04 23-Sep-04 6 22:54 26:27 25:46 30:42 10.45%
Activity for the most recent month
Geyser Start Date Last Update Intervals Min Mean Median Max Coef. Of Variation
Aurum 30-Nov-04 31-Dec-04 174 02:47 04:16 03:38 12:03 34.64% Aurum logger failed after 28 August; relaunched 13 September
Beehive 30-Nov-04 31-Dec-04 49 08:46 15:12 15:16 26:08 24.29%
Boardwalk 25-Aug-04 25-Sep-04 188 00:31 20:12 03:07 311:47 244.65%
Depression 30-Nov-04 31-Dec-04 56 08:53 12:51 12:23 23:21 21.23%
Lion (series) 30-Nov-04 31-Dec-04 77 05:21 09:44 09:15 17:03 25.03%
Little Cub 30-Nov-04 31-Dec-04 232 00:51 02:50 01:02 121:57 388.67%
Little Squirt 30-Nov-04 31-Dec-04 9 65:11 78:32 82:30 87:01 10.96%
North Goggles 30-Nov-04 31-Dec-04 0 -- -- -- -- -- Last recorded eruption was 30 September 
Plate 1-Dec-04 31-Dec-04 134 01:16 05:34 03:35 114:02 194.22%
Plume 30-Nov-04 31-Dec-04 358 00:48 01:25 01:14 09:27 50.70% Reactivated 1 September, went dormant at 00:44 on 8 September
   
Artemisia 30-Nov-04 31-Dec-04 48 10:29 15:47 15:09 26:42 20.74%
Baby Daisy 30-Nov-04 31-Dec-04 173 00:32 01:01 01:02 01:44 21.52%
Castle (w/o minors) 30-Nov-04 31-Dec-04 33 12:20 13:00 12:54 14:46 3.75%
Castle (minor-major) 30-Nov-04 31-Dec-04 10 02:10 06:12 05:22 11:30 50.16%
Castle (1st post minor) 30-Nov-04 31-Dec-04 8 13:22 13:53 13:54 14:24 2.22%
Daisy 30-Nov-04 31-Dec-04 237 02:19 03:09 02:50 16:17 36.52%
Grand 30-Nov-04 31-Dec-04 85 06:18 07:18 07:11 09:08 9.41%
Grotto 30-Nov-04 31-Dec-04 67 04:14 10:59 06:18 45:27 88.91%
Grotto (marathons) 30-Nov-04 31-Dec-04 14          
Oblong 30-Nov-04 31-Dec-04 148 02:26 05:02 04:47 15:45 40.56%
Old Faithful (all intervals) 30-Nov-04 31-Dec-04 487 01:00 01:31 01:32 01:57 8.54%
Old Faithful (Long) 30-Nov-04 31-Dec-04 471 01:17 01:32 01:33 01:57 7.00%
Old Faithful (Short) 30-Nov-04 31-Dec-04 16 01:00 01:07 01:09 01:14 7.36%
Pyramid 11-Aug-04 11-Sep-04 245 02:32 03:02 02:58 04:40 11.02% Logger missing after 11 Sep, no further data
Rift 30-Nov-04 31-Dec-04 47 03:32 15:41 15:01 26:03 25.79%
Riverside 30-Nov-04 31-Dec-04 101 05:50 06:11 06:04 07:10 4.54%
Riverside (Long) 30-Nov-04 31-Dec-04 25 06:22 06:38 06:39 07:10 2.23%
Riverside (Short) 30-Nov-04 31-Dec-04 76 05:50 06:02 06:03 06:11 1.18%
West Triplet 30-Nov-04 31-Dec-04 124 02:08 06:01 05:56 13:41 45.10% Gap in data from 15 Sep to 19 Sep
     
Spouter 30-Nov-04 31-Dec-04 156 02:53 04:46 04:24 08:29 25.83%
   
Fountain Geyser 3-Oct-04 3-Nov-04 135 01:17 05:33 05:52 13:12 28.44%
Great Fountain 7-Oct-04 7-Nov-04 52 10:00 12:26 11:41 20:57 17.95%
Pink Geyser 3-Oct-04 3-Nov-04 128 05:13 05:49 05:44 07:50 7.65%
   
Echinus 30-Aug-04 30-Sep-04 131 02:57 05:44 03:45 39:33 91.96%
   
Hillside 23-Aug-04 23-Sep-04 18 15:48 40:44 31:56 90:20 52.08%
Lone Pine 23-Aug-04 23-Sep-04 28 18:22 25:42 26:05 30:42 17.94%
All electronically recorded activity for 2004
Geyser Start Date Last Update Intervals Min Mean Median Max Coef. Of Variation
Aurum 1-Jan-04 31-Dec-04 1933 02:33 04:20 03:39 17:22 37.15% Aurum logger failed after 28 August; relaunched 13 September
Beehive 3-Jul-04 31-Dec-04 287 08:19 15:11 14:59 27:58 21.02% Only includes data from re-location of sensor in July
Boardwalk 1-Jan-04 25-Sep-04 505 00:31 18:51 03:40 1187:35 372.90% Includes periods of dormancy and probably eruptions of "Park Place"
Depression 21-Jan-04 31-Dec-04 783 07:14 10:33 10:10 24:39 19.23%
Lion (series) 1-Jan-04 31-Dec-04 923 03:02 09:30 09:18 17:06 23.59%
Little Cub 1-Jan-04 31-Dec-04 6676 00:44 01:17 00:58 121:57 205.43%
Little Squirt 3-Jan-04 31-Dec-04 118 32:42 73:58 75:45 145:51 24.02%
North Goggles 1-Jan-04 31-Dec-04 19 07:03 51:07 31:22 193:22 98.45% Logger failed after 7 April; replaced 10 July
Plate 1-Jan-04 31-Dec-04 2173 00:40 04:02 03:37 114:02 77.37%
Plume 1-Jan-04 31-Dec-04 1684 00:46 01:26 01:17 09:27 47.95% Reactivated 1 September, went dormant at 00:44 on 8 September
   
Artemisia 1-Jan-04 31-Dec-04 424 07:43 13:49 13:35 26:42 19.35% Gap in data from 4 March to 4 July
Baby Daisy 1-Jan-04 31-Dec-04 9247 00:20 00:53 00:53 01:49 24.46%
Castle (w/o minors) 1-Jan-04 31-Dec-04 358 11:45 12:45 12:44 14:46 2.83%
Castle (minor-major) 1-Jan-04 31-Dec-04 125 01:56 05:32 04:58 11:34 41.41%
Castle (1st post minor) 1-Jan-04 31-Dec-04 111 12:50 13:37 13:37 14:48 2.68%
Daisy 1-Jan-04 31-Dec-04 2991 01:59 02:55 02:48 16:17 24.09%
Grand 1-Jan-04 31-Dec-04 1022 06:04 07:47 07:34 11:43 14.49%
Grotto 1-Jan-04 31-Dec-04 874 03:01 10:03 06:05 45:27 90.92%
Grotto (marathons) 1-Jan-04 31-Dec-04 143 04:44 57:01 58:55 120:38 41.56%
Oblong 1-Jan-04 31-Dec-04 1172 02:20 07:16 06:16 47:39 60.83%
Old Faithful (all intervals) 1-Jan-04 31-Dec-04 5737 00:47 01:31 01:32 02:05 8.25%
Old Faithful (Long) 1-Jan-04 31-Dec-04 5586 01:16 01:32 01:32 02:05 6.78%
Old Faithful (Short) 1-Jan-04 31-Dec-04 151 00:47 01:05 01:06 01:15 8.39%
Pyramid 31-Jul-04 11-Sep-04 329 02:20 03:02 02:57 04:40 11.50% Logger missing after 11 Sep; no more data this year
Rift 1-Jan-04 31-Dec-04 588 00:56 14:48 14:35 43:22 29.29%
Riverside 1-Jan-04 31-Dec-04 1030 05:44 06:10 06:02 07:10 4.65% Gap in data from 30 Jan to 8 Apr
Riverside (Long) 1-Jan-04 31-Dec-04 295 06:20 06:36 06:37 07:10 1.44% Gap in data from 30 Jan to 8 Apr
Riverside (Short) 1-Jan-04 31-Dec-04 735 05:44 06:00 06:00 06:18 1.28% Gap in data from 30 Jan to 8 Apr
West Triplet 1-Jan-04 31-Dec-04 1391 00:38 06:14 06:16 27:41 47.58% Gap in data from 15 Sep to 19 Sep
     
Spouter 1-Jan-04 31-Dec-04 1253 02:33 05:09 04:49 12:25 31.10%
   
Fountain Geyser 1-Jan-04 3-Nov-04 1046 00:16 05:23 05:42 13:12 23.19% Gaps from 6 Mar to 8 Apr and 23 May to 3 Jul
Great Fountain 1-Jan-04 7-Nov-04 386 08:53 12:11 11:54 20:57 13.73% Gaps from 2 Jan to 23 Jan and 31 May to 1 June
Pink Geyser 1-Jan-04 3-Nov-04 619 04:59 05:52 05:48 08:59 7.83% Gaps from 2 Jan to 21 Jan and 22 Jan to 7 June
   
Echinus 1-Jan-04 30-Sep-04 462 00:54 10:44 06:48 86:06 117.37% Gap from 12 Feb to 17 Apr
   
Hillside 1-Jan-04 23-Sep-04 77 11:40 53:28 33:40 221:42 93.24% No data from 8 April to 12 July
Lone Pine 2-Jan-04 23-Sep-04 73 18:16 25:47 25:50 36:14 13.51% Includes 4 intervals in January; no data 6 Jan-12 July