Station BK PKD - Bear Valley Ranch, Parkfield, CA

Network: BK - Berkeley Digital Seismograph Network

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
PKD Bear Valley Ranch, Parkfield, CA (35.95, -120.54) 1996-09-06 / 2499-01-01 583 m
Crust2 Type:S1,continental slope, margin, transition 1 km seds.
Thickness Estimate:27 km
Thickness StdDev:0.6 km
Vp/Vs Estimate:1.88
Vp/Vs StdDev:0.02
Vs Estimate:3.28 km/s
Poisson's Ratio:0.30
Peak Value:0.04
Assumed Vp:6.183 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.381
Nearby stations H:26 km +- 2.6 km
(2.0 deg) Vp/Vs:1.87 +- 0.11

20 with match > 90% ( 27.39726 %) and 72 with match > 80% ( 98.630135 %) out of 73.

Download stack as xyz text file.

Azimuth Distribution of Events:

Prior Results for this Station

Study Thickness Vp/Vs Vp Vs Poissons Ratio Extra
EARS 27 km 1.88 6.183 km/s 3.28 km/s 0.30
Crust2.0 23 km 1.81 6.183 km/s 3.422 km/s 0.28 S1,continental slope, margin, transition 1 km seds.
Global Maxima 27 km 1.88 6.183 km/s 3.28 km/s 0.30 amp=0.03948752
Local Maxima 1 21 km 2.08 6.183 km/s 2.98 km/s 0.35 amp=0.01760791
Local Maxima 2 27 km 1.82 6.183 km/s 3.397 km/s 0.28 amp=0.011034256
Local Maxima 3 28 km 1.85 6.183 km/s 3.346 km/s 0.29 amp=0.0076458296
Local Maxima 4 18 km 1.69 6.183 km/s 3.669 km/s 0.23 amp=0.006054788
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps3.90 SECOND
PpPs12.72 SECOND
PsPs/PpSs16.62 SECOND

Events Processed for this Station

Download zip of receiver functions as SAC

View Record Section

Plot maxima for each earthquake.

Events Used in the Stack

(72 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
95.25964 51.2 deg 119.859 deg Near West Coast Of Colombia 2007/09/10 01:49:14 GMT (3.0, -78.0) 31 km 6.1 MB, 6.7 MS, 6.8 MW
95.20261 50.3 deg 117.878 deg Near West Coast Of Colombia 2004/11/15 09:06:56 GMT (4.7, -77.5) 15 km 6.6 MB, 7.1 MS, 7.2 MW, 7.1 MW
95.17767 38.3 deg 105.621 deg Caribbean Sea 2004/12/14 23:20:13 GMT (19.0, -81.4) 10 km 6.2 MB, 6.7 MS, 6.8 MW, 6.8 MW
94.13794 64.3 deg 131.442 deg Near Coast Of Peru 2007/08/15 23:40:57 GMT (-13.4, -76.6) 39 km 6.7 MB, 7.9 MS, 8.0 MW, 7.5 ME
93.95247 50.9 deg 323.202 deg Eastern Siberia, Russia 2006/04/20 23:25:02 GMT (60.9, 167.1) 22 km 6.8 MB, 7.6 MS, 7.6 MW, 7.3 MW
93.91736 61.9 deg 308.424 deg East Of Kuril Islands 2007/01/13 04:23:21 GMT (46.2, 154.5) 10 km 7.3 MB, 8.2 MS, 8.1 MW, 7.9 MW
93.87897 88.8 deg 258.758 deg Solomon Islands 2007/04/01 20:39:56 GMT (-8.5, 157.0) 10 km 6.8 MB, 7.9 MS, 8.1 MW, 7.7 ME
92.623764 58.5 deg 125.649 deg Northern Peru 2005/09/26 01:55:37 GMT (-5.7, -76.4) 115 km 6.7 MB, 7.5 MW, 7.5 MW
92.19588 80.1 deg 303.745 deg Near S. Coast Of Honshu, Japan 2004/09/05 14:57:18 GMT (33.2, 137.1) 10 km 6.2 MB, 7.1 MS, 7.4 MW, 7.4 MW
92.19042 64.2 deg 131.255 deg Near Coast Of Peru 2007/08/16 00:02:41 GMT (-13.3, -76.5) 40 km 5.6 MB
92.18918 73.9 deg 130.127 deg Northern Chile 2005/06/13 22:44:33 GMT (-20.0, -69.2) 116 km 6.8 MB, 7.8 MW, 7.8 MW
91.841194 87.0 deg 226.823 deg Kermadec Islands Region 2006/05/16 10:39:23 GMT (-31.8, -179.3) 152 km 6.8 MB, 7.4 MW, 7.4 MW
91.80759 89.4 deg 263.996 deg New Ireland Region, P.N.G. 2005/09/09 07:26:43 GMT (-4.5, 153.5) 90 km 6.3 MB, 7.7 MW, 7.5 MW
91.23656 76.4 deg 130.766 deg Chile-Bolivia Border Region 2005/11/17 19:26:56 GMT (-22.3, -67.9) 163 km 6.0 MB, 6.9 MW, 6.8 MW
91.21527 74.8 deg 238.033 deg Fiji Islands Region 2005/12/13 03:16:06 GMT (-15.3, -178.6) 10 km 6.1 MB, 6.8 MS, 6.7 MW, 6.7 MW
90.89419 90.5 deg 260.564 deg Solomon Islands 2007/06/28 02:52:09 GMT (-8.0, 154.6) 10 km 6.3 MB, 6.7 MS, 6.7 MW, 6.7 MW
90.77704 39.4 deg 121.219 deg Off Coast Of Costa Rica 2004/06/29 07:01:30 GMT (10.7, -87.0) 9.0 km 5.8 MB, 5.8 MS, 6.3 MW, 6.1 MW
90.73912 71.4 deg 232.335 deg Samoa Islands Region 2006/09/28 06:22:09 GMT (-16.6, -172.0) 28 km 6.5 MB, 6.6 MS, 6.9 MW, 6.7 MW
90.50159 73.9 deg 305.659 deg Near East Coast Of Honshu, Japan 2005/08/16 02:46:28 GMT (38.3, 142.0) 36 km 6.5 MB, 6.8 MS, 7.2 MW, 7.1 MW
90.37113 80.4 deg 303.882 deg Near S. Coast Of Western Honshu 2004/09/05 10:07:07 GMT (33.1, 136.6) 14 km 6.7 MB, 7.0 MS, 7.2 MW, 7.0 MW
89.74446 76.6 deg 306.672 deg Near West Coast Of Honshu, Japan 2007/07/16 01:13:22 GMT (37.5, 138.4) 12 km 6.5 MB, 6.4 MS, 6.6 MW, 6.5 MW
89.66949 72.0 deg 304.247 deg Off East Coast Of Honshu, Japan 2005/11/14 21:38:51 GMT (38.1, 144.9) 11 km 6.7 MB, 6.8 MS, 7.0 MW, 6.9 MW
89.58276 39.6 deg 119.711 deg Near Coast Of Nicaragua 2005/07/02 02:16:43 GMT (11.2, -86.2) 27 km 5.6 MB, 6.4 MS, 6.6 MW, 6.6 MW
89.41413 62.7 deg 309.066 deg Kuril Islands 2006/10/01 09:06:02 GMT (46.5, 153.2) 19 km 6.1 MB, 6.4 MS, 6.6 MW, 6.5 MW
89.39626 84.1 deg 246.368 deg Vanuatu Islands 2007/07/15 09:27:34 GMT (-15.4, 168.6) 8.0 km 6.0 MB, 5.8 MS, 6.1 MW, 6.0 MW
89.34783 86.9 deg 280.605 deg South Of Mariana Islands 2007/09/30 02:08:30 GMT (10.5, 145.7) 14 km 6.4 MB, 7.1 MS, 6.9 MW, 6.9 MW
89.34075 83.9 deg 251.044 deg Santa Cruz Islands 2007/09/02 01:05:18 GMT (-11.6, 165.8) 35 km 5.9 MB, 7.3 MS, 7.2 MW, 6.9 ME
89.294205 82.6 deg 291.692 deg Volcano Islands, Japan Region 2007/09/28 13:38:59 GMT (22.0, 142.7) 276 km 6.7 MB, 7.4 MW, 7.4 MW
89.14596 83.6 deg 283.197 deg Mariana Islands 2004/10/04 19:20:34 GMT (14.5, 147.0) 7.2 km 5.9 MB, 5.9 MS, 6.0 MW, 5.9 MW
88.70181 69.4 deg 308.6 deg Hokkaido, Japan Region 2004/11/28 18:32:14 GMT (43.0, 145.1) 39 km 6.4 MB, 6.7 MS, 7.0 MW, 7.0 MW
88.65579 84.9 deg 246.769 deg Vanuatu Islands 2007/08/01 17:08:51 GMT (-15.6, 167.7) 120 km 6.2 MB, 7.2 MW, 7.2 MW
88.48101 44.8 deg 309.406 deg Rat Islands, Aleutian Islands 2005/06/14 17:10:16 GMT (51.2, 179.4) 51 km 6.0 MB, 6.8 MW, 6.6 MW
88.294174 81.3 deg 288.442 deg Mariana Islands 2005/08/13 07:36:52 GMT (20.1, 145.8) 49 km 5.8 MB, 5.6 MS, 6.0 MW, 6.0 MW
88.15951 82.3 deg 287.664 deg Mariana Islands 2007/10/31 03:30:17 GMT (18.9, 145.4) 223 km 6.2 MB, 7.2 MW, 7.2 MW
88.05704 55.1 deg 124.264 deg Peru-Ecuador Border Region 2007/11/16 03:13:00 GMT (-2.3, -77.8) 123 km 6.3 MB, 6.8 MW, 6.7 MW
88.00526 85.0 deg 246.556 deg Vanuatu Islands 2006/08/07 22:18:54 GMT (-15.8, 167.8) 141 km 6.0 MB, 6.8 MW, 6.8 MW
88.00301 83.6 deg 285.025 deg Mariana Islands 2005/02/05 03:34:25 GMT (16.0, 145.9) 143 km 6.3 MB, 6.6 MW, 6.5 MW
87.93092 67.3 deg 131.309 deg Near Coast Of Peru 2004/09/28 21:32:18 GMT (-15.7, -74.5) 27 km 5.4 MB, 5.3 MS, 5.8 MW, 5.7 MW
87.77243 83.5 deg 231.757 deg South Of Fiji Islands 2007/10/16 21:05:43 GMT (-25.8, 179.5) 509 km 6.2 MB, 6.6 MW, 6.5 MW
87.49271 87.7 deg 256.236 deg Solomon Islands 2007/08/16 08:39:27 GMT (-9.8, 159.5) 10 km 6.1 MB, 6.7 MS, 6.4 MW
87.28498 58.1 deg 314.012 deg Kamchatka Peninsula, Russia 2007/05/30 20:22:12 GMT (52.1, 157.3) 116 km 6.4 MB, 6.4 MW, 6.4 MW
87.26545 37.1 deg 311.608 deg Fox Islands, Aleutian Islands 2007/07/15 13:08:00 GMT (52.5, -168.0) 10 km 5.8 MB, 5.9 MS, 6.1 MW, 6.0 MW
87.16132 90.5 deg 283.823 deg W. Caroline Islands, Micronesia 2005/01/16 20:17:52 GMT (10.9, 140.8) 25 km 6.3 MB, 6.7 MS, 6.6 MW, 6.6 MW
86.62059 31.5 deg 124.771 deg Off Coast Of Chiapas, Mexico 2006/06/27 13:03:12 GMT (15.0, -94.2) 29 km 5.4 MB, 5.5 MS, 5.8 MW, 5.8 MW
86.57564 58.3 deg 312.856 deg Near East Coast Of Kamchatka 2006/08/24 21:50:36 GMT (51.1, 157.5) 43 km 5.9 MB, 6.2 MS, 6.5 MW, 6.5 MW
85.771736 42.2 deg 119.407 deg Costa Rica 2004/11/20 08:07:22 GMT (9.6, -84.2) 16 km 6.2 MB, 6.3 MS, 6.4 MW, 6.4 MW
85.50928 35.4 deg 121.589 deg Near Coast Of Guatemala 2004/11/20 22:01:45 GMT (13.4, -90.1) 41 km 5.6 MB, 6.0 MS, 6.3 MW, 6.2 MW
85.295135 45.8 deg 121.962 deg South Of Panama 2005/05/05 19:12:20 GMT (5.7, -82.8) 10 km 5.9 MB, 5.8 MS, 6.5 MW, 6.4 MW
85.28947 81.7 deg 289.744 deg Mariana Islands 2007/01/30 21:37:45 GMT (21.0, 144.7) 30 km 6.3 MB, 6.5 MS, 6.6 MW, 6.5 MW
84.79713 78.5 deg 131.576 deg Chile-Argentina Border Region 2006/08/25 00:44:46 GMT (-24.4, -67.0) 184 km 5.9 MB, 6.6 MW, 6.6 MW
84.70914 43.9 deg 119.299 deg Panama-Costa Rica Border Region 2005/06/30 21:26:36 GMT (8.4, -82.9) 38 km 5.3 MB, 5.6 MS, 6.0 MW, 5.8 MW
83.70952 42.1 deg 310.128 deg Andreanof Islands, Aleutian Is. 2007/07/13 21:54:43 GMT (51.8, -176.3) 35 km 5.7 MB, 5.6 MS, 6.0 MW, 5.9 MW
83.60019 79.4 deg 307.798 deg Sea Of Japan 2007/07/16 14:17:37 GMT (36.8, 134.9) 350 km 6.2 MB, 6.8 MW, 6.8 MW
83.33175 76.6 deg 306.256 deg Near West Coast Of Honshu, Japan 2004/10/23 08:56:00 GMT (37.2, 138.8) 16 km 6.4 MB, 6.3 MS, 6.6 MW, 6.4 MW
83.2907 76.5 deg 302.496 deg Off East Coast Of Honshu, Japan 2004/05/29 20:56:09 GMT (34.3, 141.4) 16 km 5.6 MB, 6.6 MS, 6.5 MW, 6.3 MW
83.10843 69.4 deg 308.459 deg Hokkaido, Japan Region 2004/12/06 14:15:11 GMT (42.9, 145.2) 35 km 6.5 MB, 6.5 MS, 6.8 MW, 6.8 MW
82.73106 59.3 deg 43.525 deg North Atlantic Ocean 2006/11/29 15:38:44 GMT (53.7, -35.4) 10 km 5.6 MB, 5.3 MS, 5.6 MW, 5.6 MW
82.18569 82.3 deg 133.58 deg Santiago Del Estero Prov., Arg. 2004/09/07 11:53:06 GMT (-28.6, -65.8) 22 km 6.1 MB, 6.1 MS, 6.4 MW, 6.2 MW
82.15376 40.0 deg 120.011 deg Costa Rica 2004/04/29 00:57:21 GMT (10.8, -86.0) 10 km 5.6 MB, 6.0 MS, 6.2 MW, 6.2 MW
81.977684 87.1 deg 240.3 deg Southeast Of Loyalty Islands 2004/05/07 01:26:42 GMT (-22.0, 170.3) 14 km 5.7 MB, 6.2 MS, 6.3 MW, 6.2 MW
81.6463 81.3 deg 139.029 deg Near Coast Of Central Chile 2006/10/12 18:05:58 GMT (-31.3, -71.3) 46 km 5.8 MB, 6.1 MS, 6.4 MW, 6.3 MW
81.5941 86.9 deg 241.896 deg Vanuatu Islands 2007/03/25 00:40:01 GMT (-20.6, 169.4) 34 km 6.5 MB, 7.0 MS, 7.1 MW, 7.1 MW
81.27581 84.4 deg 248.067 deg Vanuatu Islands 2005/02/08 14:48:21 GMT (-14.3, 167.3) 206 km 6.1 MB, 6.8 MW, 6.7 MW
81.073235 45.3 deg 120.497 deg South Of Panama 2005/08/27 18:38:20 GMT (6.8, -82.4) 10 km 5.6 MB, 5.6 MS, 6.2 MW, 6.1 MW
80.99707 92.4 deg 263.76 deg New Britain Region, P.N.G. 2006/11/07 17:38:33 GMT (-6.5, 151.2) 10 km 6.2 MB, 6.3 MS, 6.5 MW, 6.4 MW
80.93407 40.1 deg 119.039 deg Nicaragua 2005/08/03 11:03:15 GMT (11.2, -85.5) 14 km 6.0 MB, 6.5 MS, 6.3 MW, 6.3 MW
80.30362 92.2 deg 264.369 deg New Britain Region, P.N.G. 2006/10/17 01:25:12 GMT (-5.9, 151.0) 32 km 6.4 MB, 6.9 MS, 6.7 MW, 6.6 MW
80.27334 80.8 deg 287.484 deg Mariana Islands Region 2004/07/20 14:16:23 GMT (19.6, 146.8) 13 km 5.7 MB, 5.6 MS, 5.9 MW, 5.9 MW
80.26213 39.1 deg 120.043 deg Near Coast Of Nicaragua 2004/10/09 21:26:53 GMT (11.4, -86.7) 35 km 6.0 MB, 7.0 MS, 6.9 MW, 6.8 MW
80.167786 72.0 deg 128.818 deg Peru-Bolivia Border Region 2005/10/17 19:23:02 GMT (-17.8, -69.5) 123 km 5.6 MB, 5.8 MW, 5.7 MW
80.16621 49.7 deg 118.883 deg South Of Panama 2007/03/18 02:11:05 GMT (4.6, -78.5) 8.0 km 6.4 MB, 5.7 MS, 6.2 MW, 6.1 MW
80.12096 56.2 deg 187.219 deg South Pacific Ocean 2004/07/11 23:46:12 GMT (-20.3, -126.9) 12 km 6.1 MB, 5.9 MS, 6.1 MW, 6.1 MW

Losers

(1 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
73.096436 39.4 deg 119.614 deg Near Coast Of Nicaragua 2005/07/02 04:11:04 GMT (11.4, -86.3) 40 km 5.4 MB, 5.4 MS, 5.8 MW, 5.0 MD