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Recent Geyser Activity
Interval Between Eruptions 
Most recent data collected 17 August 11
           
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 9-Aug-11 16-Aug-11 23 04:08 07:30 06:42 17:22 42.94%
Beehive 9-Aug-11 16-Aug-11 12 12:08 14:24 14:24 18:37 12.56%
Boardwalk                 Dormant - No eruptions since July 2006, no longer monitored
Depression 9-Aug-11 16-Aug-11 43 02:46 03:49 03:48 05:10 15.76%
Lion (series) 9-Aug-11 16-Aug-11 8 11:58 18:37 14:49 38:32 47.33%
Lion (eruptions/series) 9-Aug-11 16-Aug-11 8 1 5.38 6 11 62.05%
Little Cub 9-Aug-11 16-Aug-11 239 00:32 00:40 00:38 02:38 43.82%
Little Squirt 9-Aug-11 16-Aug-11 0 -- -- -- -- --
North Goggles 1-Jan-11 7-Jan-11             Last electronically recorded eruption 0838 on 08 September 2010
Plate 1-Jan-11 7-Jan-11 4 00:16 248:07 13:36 965:02 192.69%
Plume 9-Aug-11 16-Aug-11 186 0:45 0:54 0:53 1:03 6.00%
                 
Artemisia 10-Aug-11 17-Aug-11 10 11:26 16:13 14:46 25:09 28.57%
Baby Daisy                 Dormant - last eruption 09:50 on 8 December 2004
Castle (w/o minors) 10-Aug-11 17-Aug-11 8 13:27 15:10 13:48 25:12 26.75%
Castle (minor-major) 10-Aug-11 17-Aug-11 1 18:53 18:53 18:53 18:53  
Castle (1st post minor) 10-Aug-11 17-Aug-11 2 14:52 15:25 15:25 15:58 5.04%
Daisy 10-Aug-11 17-Aug-11 66 02:21 02:34 02:33 02:49 4.06%
Grand 10-Aug-11 17-Aug-11 18 07:01 09:20 09:16 12:46 15.89%
Grotto 1-Nov-10 8-Nov-10 27 01:10 05:19 05:26 14:07 44.94%
Grotto (dur>4h50m) 1-Nov-10 8-Nov-10 2          
Grotto (dur>12h00m) 1-Nov-10 8-Nov-10 1          
Oblong 10-Aug-11 17-Aug-11 30 02:54 05:39 05:50 08:04 26.23%
Old Faithful (all intervals) 6-Jul-11 13-Jul-11 109 00:52 01:33 01:35 01:50 10.46%
Old Faithful (Long) 6-Jul-11 13-Jul-11 104 01:15 01:34 01:35 01:50 6.86%
Old Faithful (Short) 6-Jul-11 13-Jul-11 5 00:52 01:00 00:58 01:09 11.78%
Pyramid 1-Sep-10 8-Sep-10 36 03:55 04:49 04:32 07:55 17.64% Logger removed for winter 8 September 2010
Rift 20-Sep-10 27-Sep-10 7 14:20 21:36 20:18 28:20 21.86% Last download of 2010 on 27 Sep; no further data until June 2011
Riverside 1-Nov-10 8-Nov-10 27 05:45 06:21 06:25 06:32 3.38%
Riverside (Long) 1-Nov-10 8-Nov-10 24 06:15 06:25 06:26 06:32 1.05%
Riverside (Short) 1-Nov-10 8-Nov-10 3 05:45 05:47 05:47 05:48 0.48%
West Triplet 20-Sep-10 27-Sep-10 23 02:46 07:16 07:46 11:58 41.67% Last download of 2010 on 27 Sep; no further data until June 2011
   
Mercury Geyser 31-Jul-10 7-Aug-10 58 00:31 02:28 01:24 15:20 110.56%
Spouter 21-Sep-10 28-Sep-10 46 02:33 03:44 03:28 05:47 22.45% Last download of 2010 on 28 Sep; no further data until June 2011
   
Fountain Geyser 7-Aug-11 14-Aug-11 29 04:38 05:55 05:52 06:40 6.51%
Great Fountain 7-Aug-11 14-Aug-11 13 11:00 12:44 11:53 18:17 16.14%
Logbridge Geyser 14-Sep-10 21-Sep-10 202 00:29 00:49 00:47 04:34 44.13%
Narcissus Geyser 14-Sep-10 21-Sep-10 53 01:32 03:13 03:05 04:59 27.69% Last download of 2010 on 21 Sep; no further data until June 2011
Pink Geyser 14-Sep-10 21-Sep-10 46 01:55 03:41 03:37 09:18 39.83% Last download of 2010 on 21 Sep; no further data until June 2011
   
Echinus                 Dormant
   
Hillside                 Dormant - last eruption 02:33 on 26 November 2005; no longer monitored
Occasional Geyser 29-Aug-10 5-Sep-10 207 00:27 00:48 00:48 01:09 15.74% Logger removed for winter 5 September 2010
Lone Pine 7-Jun-11 14-Jun-11 8 17:19 20:18 19:54 24:51 12.05%
Activity for the most recent month
Geyser Start Date Last Update Intervals Min Mean Median Max Coef. Of Variation
Aurum 17-Jul-11 16-Aug-11 112 03:24 06:41 06:11 17:22 36.19% Gap from 0732 24/Jun/11 to 0956 29/Jun/11 due to logger filling
Beehive 17-Jul-11 16-Aug-11 53 11:28 14:04 14:00 18:37 10.82%
Boardwalk                 Dormant - No eruptions since July 2006, no longer monitored
Depression 17-Jul-11 16-Aug-11 202 02:40 03:41 03:42 06:00 15.21%
Lion (series) 17-Jul-11 16-Aug-11 32 11:58 22:10 21:13 39:06 32.80%
Lion (eruptions/series) 16-Aug-11 16-Aug-11 32 1 6.78 7 13 43.32%
Little Cub 17-Jul-11 16-Aug-11 1165 00:30 00:38 00:36 03:12 31.85%
Little Squirt 17-Jul-11 16-Aug-11 2 328:00 384:54 384:54 441:48 20.91%
North Goggles 1-Jan-11 7-Jan-11             Last electronically recorded eruption 0838 on 08 September 2010
Plate 1-Jan-11 7-Jan-11 4 00:16 248:07 13:36 965:02 192.69%
Plume 17-Jul-11 16-Aug-11 804 00:42 00:55 00:55 01:10 7.43%
   
Artemisia 18-Jul-11 17-Aug-11 44 09:58 17:07 17:05 25:09 24.38%
Baby Daisy                 Dormant - last eruption 09:50 on 8 December 2004; no longer monitored
Castle (w/o minors) 18-Jul-11 17-Aug-11 38 13:17 14:37 13:52 30:20 22.04%
Castle (minor-major) 18-Jul-11 17-Aug-11 7 08:38 12:35 10:58 18:53 33.35%
Castle (1st post minor) 18-Jul-11 17-Aug-11 7 14:40 15:16 14:58 16:11 3.96%
Daisy 18-Jul-11 17-Aug-11 289 02:06 02:34 02:34 04:22 6.91%
Grand 18-Jul-11 17-Aug-11 82 06:04 09:08 09:16 12:46 15.29%
Grotto 9-Oct-10 8-Nov-10 91 00:26 07:54 05:55 42:33 100.93%
Grotto (dur>4h50m) 9-Oct-10 8-Nov-10 12          
Grotto (dur>12h00m) 9-Oct-10 8-Nov-10 6          
Oblong 18-Jul-11 17-Aug-11 137 02:45 05:26 05:15 10:23 30.87%
Old Faithful (all intervals) 13-Jun-11 13-Jul-11 459 00:52 01:34 01:34 02:01 9.03%
Old Faithful (Long) 13-Jun-11 13-Jul-11 442 01:15 01:35 01:35 02:01 6.52%
Old Faithful (Short) 13-Jun-11 13-Jul-11 17 00:52 01:04 01:06 01:13 10.41%
Pyramid 9-Aug-10 8-Sep-10 155 03:38 04:48 04:36 07:55 13.84% Logger removed for winter 8 September 2010
Rift 28-Aug-10 27-Sep-10 37 11:20 20:13 20:32 28:20 16.94%
Riverside 8-Nov-10 8-Nov-10 117 05:27 06:22 06:27 06:36 3.72% Last download of 2010 on 27 Sep; no further data until June 2011
Riverside (Long) 8-Nov-10 8-Nov-10 105 06:10 06:26 06:27 06:36 1.27%
Riverside (Short) 8-Nov-10 8-Nov-10 12 05:27 05:43 05:44 06:03 2.74%
West Triplet 28-Aug-10 27-Sep-10 108 02:13 06:53 07:07 13:46 46.68%
      Last download of 2010 on 27 Sep; no further data until June 2011
Mercury Geyser 7-Jul-10 7-Aug-10 72 00:33 02:45 01:52 16:45 100.23%
Spouter 29-Aug-10 28-Sep-10 194 02:19 03:50 03:31 06:12 22.53%
    Last download of 2010 on 28 Sep; no further data until June 2011
Fountain Geyser 15-Jul-11 14-Aug-11 127 04:24 05:53 05:48 08:19 7.87%
Great Fountain 15-Jul-11 14-Aug-11 59 10:28 12:32 12:09 18:17 11.62%
Logbridge Geyser 22-Aug-10 21-Sep-10 826 00:25 00:54 00:44 12:29 102.93% Last download of 2010 on 21 Sep; no further data until June 2011
Narcissus Geyser 21-Aug-10 21-Sep-10 230 01:32 03:13 02:55 05:00 28.14%
Pink Geyser 22-Aug-10 21-Sep-10 210 01:38 03:34 03:26 09:18 39.17% Last download of 2010 on 21 Sep; no further data until June 2011
    Last download of 2010 on 21 Sep; no further data until June 2011
Echinus                 Dormant
   
Hillside                 Dormant - last eruption 02:33 on 26 November 2005; no longer monitored
Occasional Geyser 5-Sep-10 5-Sep-10 908 00:27 00:50 00:49 01:25 19.24% Logger removed for winter 5 September 2010
Lone Pine 15-May-11 14-Jun-11 36 16:53 21:16 21:01 26:43 12.78%
All electronically recorded activity for 2010
Geyser Start Date Last Update Intervals Min Mean Median Max Coef. Of Variation
Aurum 1-Jan-11 16-Aug-11 1305 02:34 04:04 03:46 17:22 31.32% Gap from 0732 24/Jun/11 to 0956 29/Jun/11 due to logger filling
Beehive 1-Jan-11 16-Aug-11 403 07:21 13:30 13:09 48:18 19.98%
Boardwalk                 Dormant - No eruptions since July 2006, no longer monitored
Depression 1-Jan-11 16-Aug-11 1551 02:08 03:26 03:18 10:36 18.27%
Lion (series) 1-Jan-11 16-Aug-11 221 05:10 24:00 23:26 51:12 33.45%
Lion (eruptions/series) 1-Jan-11 16-Aug-11 221 1 6.85 7 17 46.97%
Little Cub 1-Jan-11 16-Aug-11 5768 00:28 00:56 00:38 122:52 321.31%
Little Squirt 1-Jan-11 16-Aug-11 49 36:00 109:32 85:06 441:48 68.90%
North Goggles 1-Jan-11 7-Jan-11             Last electronically recorded eruption 0838 on 08 September 2010
Plate 1-Jan-11 7-Jan-11 4 00:16 248:07 13:36 965:02 192.69%
Plume 1-Jan-11 16-Aug-11 5645 00:41 00:57 00:56 07:13 14.65%
   
Artemisia 1-Jan-11 17-Aug-11 305 09:26 17:56 17:20 31:13 25.98%
Baby Daisy                 Dormant - last eruption 09:50 on 8 December 2004; no longer monitored
Castle (w/o minors) 1-Jan-11 17-Aug-11 252 12:01 13:58 13:49 30:20 9.70% Yes, there was a 30-hour interval!
Castle (minor-major) 1-Jan-11 17-Aug-11 100 02:49 06:57 05:41 18:53 46.42%
Castle (1st post minor) 1-Jan-11 17-Aug-11 85 13:48 14:53 14:44 18:05 24.14%
Daisy 1-Jan-11 17-Aug-11 1955 02:06 02:48 02:42 11:27 17.39%
Grand 1-Jan-11 17-Aug-11 594 06:01 09:13 09:17 12:46 12.85%
Grotto 1-Jan-10 8-Nov-10 840 00:26 08:52 06:30 50:45 90.71%
Grotto (dur>4h50m) 1-Jan-10 8-Nov-10 91          
Grotto (dur>12h00m) 1-Jan-10 8-Nov-10 60 23:22 118:41 93:11 322:59 63.19%
Oblong 1-Jan-11 17-Aug-11 956 01:40 05:43 04:40 62:53 74.28% Possibly missed some eruptions due to ice
Old Faithful (all intervals) 1-Jan-11 13-Jul-11 2983 00:52 01:33 01:34 02:01 10.08%
Old Faithful (Long) 1-Jan-11 13-Jul-11 2821 01:15 01:34 01:34 02:01 6.87%
Old Faithful (Short) 1-Jan-11 13-Jul-11 162 00:52 01:04 01:04 01:14 8.80%
Pyramid 23-Jun-10 8-Sep-10 382 03:26 04:49 04:44 07:55 12.54% Logger removed for winter 8 September 2010
Rift 1-Jan-10 27-Sep-10 316 03:14 20:29 19:39 137:42 41.19% Last download of 2010 on 27 Sep; no further data until June 2011
Riverside 1-Jan-10 8-Nov-10 1189 04:58 06:17 06:25 06:47 4.82%
Riverside (Long) 1-Jan-10 8-Nov-10 924 06:05 06:26 06:26 06:47 1.54%
Riverside (Short) 1-Jan-10 8-Nov-10 265 04:58 05:45 05:45 06:03 2.12%
West Triplet 1-Jan-10 27-Sep-10 1056 00:44 06:07 05:38 32:40 52.78% Last download of 2010 on 27 Sep; no further data until June 2011
     
Mercury Geyser 1-Jan-10 7-Aug-10 72 00:33 02:45 01:52 16:45 100.23%
Spouter 1-Jan-10 28-Sep-10 1043 01:32 03:55 03:38 15:40 27.94% Last download of 2010 on 28 Sep; no further data until June 2011
   
Fountain Geyser 1-Jan-11 14-Aug-11 843 04:24 06:24 06:07 13:37 17.48%
Great Fountain 1-Jan-11 14-Aug-11 403 08:50 12:28 12:14 21:08 13.43%
Logbridge Geyser 1-Jan-10 21-Sep-10 3570 00:21 00:58 00:43 12:29 96.22%
Narcissus Geyser 1-Jan-10 21-Sep-10 1992 01:17 03:10 02:58 06:29 26.85% Last download of 2010 on 21 Sep; no further data until June 2011
Pink Geyser 1-Jan-10 21-Sep-10 914 00:25 04:05 03:41 11:15 41.37% Last download of 2010 on 21 Sep; no further data until June 2011
   
Echinus                 Dormant
                 
Hillside                 Dormant - last eruption 02:33 on 26 November 2005; no longer monitored
Occasional Geyser 4-Jul-10 5-Sep-10 1689 00:25 00:53 00:52 01:33 22.01% Logger deployed on 4 July; logger removed for winter 5 September 2010
Lone Pine 2-Jan-11 14-Jun-11 128 16:53 30:44 27:48 62:37 32.07%