Station TA B23A - Brockton, MT, USA

Network: TA - USArray Transportable Network (new EarthScope stations)

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
B23A Brockton, MT, USA (48.46, -104.99) 2008-09-17 / 2599-12-31 716 m
Crust2 Type:H5,early/mid Proter. shield, Africa, 3 km seds.
Thickness Estimate:40 km
Thickness StdDev:1.3 km
Vp/Vs Estimate:2.05
Vp/Vs StdDev:0.03
Vs Estimate:3.136 km/s
Poisson's Ratio:0.34
Peak Value:0.03
Assumed Vp:6.438 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.574
Nearby stations (2.0 deg): +-

6 with match > 90% ( 5.882353 %) and 14 with match > 80% ( 13.725491 %) out of 102.

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 40 km 2.05 6.438 km/s 3.136 km/s 0.34
Crust2.0 48 km 1.78 6.438 km/s 3.613 km/s 0.27 H5,early/mid Proter. shield, Africa, 3 km seds.
Global Maxima 40 km 2.05 6.438 km/s 3.136 km/s 0.34 amp=0.030353764
Local Maxima 1 38 km 2.10 6.438 km/s 3.073 km/s 0.35 amp=0.021753198
Local Maxima 2 39 km 2.10 6.438 km/s 3.069 km/s 0.35 amp=0.007919952
Local Maxima 3 25 km 1.60 6.438 km/s 4.023 km/s 0.18 amp=0.0065575624
Local Maxima 4 44 km 1.91 6.438 km/s 3.362 km/s 0.31 amp=0.0065445844
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps6.62 SECOND
PpPs19.20 SECOND
PsPs/PpSs25.83 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

(14 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
97.2783 94.4 deg 240.037 deg Tonga Islands Region 2009/03/19 18:17:40 GMT (-23.0, -174.7) 34 km 7.0 MB, 7.6 MS, 7.6 MW, 7.6 MW
95.77585 48.7 deg 127.973 deg Near Coast Of Venezuela 2009/09/12 20:06:24 GMT (10.7, -67.9) 10 km 6.3 MB, 6.4 MS, 6.3 MW, 6.3 MW
94.29502 81.2 deg 310.913 deg Near S. Coast Of Honshu, Japan 2009/08/09 10:55:55 GMT (33.2, 137.9) 297 km 6.5 MB, 7.1 MW, 7.1 MW
93.47597 87.1 deg 243.319 deg Samoa Islands Region 2009/08/30 14:51:32 GMT (-15.2, -172.6) 11 km 6.4 MB, 6.3 MS, 6.6 MW, 6.6 MW
93.06738 44.8 deg 13.529 deg North Of Svalbard 2009/03/06 10:50:29 GMT (80.3, -1.9) 9.0 km 6.6 MB, 6.5 MS, 6.5 MW, 6.4 MW
92.74389 64.7 deg 311.47 deg Kuril Islands 2009/04/07 04:23:33 GMT (46.0, 151.5) 31 km 6.5 MB, 6.8 MS, 6.9 MW, 6.9 MW
89.37551 71.8 deg 312.956 deg Hokkaido, Japan Region 2009/06/05 03:30:33 GMT (41.8, 143.4) 29 km 6.0 MB, 6.3 MS, 6.4 MW, 6.4 MW
88.47703 64.8 deg 311.508 deg Kuril Islands 2009/04/18 19:17:58 GMT (46.0, 151.4) 35 km 6.3 MB, 6.3 MS, 6.6 MW, 6.4 MW
88.01376 86.6 deg 39.196 deg Crete, Greece 2009/07/01 09:30:10 GMT (34.2, 25.5) 19 km 6.1 MB, 6.3 MS, 6.4 MW, 6.4 MW
87.8263 87.5 deg 153.092 deg Near Coast Of Central Chile 2010/03/11 14:39:43 GMT (-34.3, -71.9) 11 km 6.7 MB, 7.0 MS, 6.9 MW, 6.9 MW
85.86437 44.5 deg 141.869 deg Panama 2009/07/04 06:49:35 GMT (9.6, -79.0) 38 km 6.0 MB, 5.5 MS, 6.0 MW, 6.0 MW
81.58923 57.9 deg 317.038 deg Sea Of Okhotsk 2008/11/24 09:02:58 GMT (54.2, 154.3) 492 km 6.5 MB, 7.3 MW, 7.3 MW
81.03336 49.9 deg 153.697 deg Off Coast Of Ecuador 2009/05/10 01:16:06 GMT (1.4, -85.2) 6.0 km 5.5 MB, 5.7 MS, 6.1 MW, 6.1 MW
80.233284 46.6 deg 148.822 deg South Of Panama 2009/03/12 23:23:34 GMT (5.7, -82.8) 9.0 km 6.1 MB, 5.9 MS, 6.3 MW, 6.2 MW

Losers

(88 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
96.841644 62.3 deg 310.219 deg East Of Kuril Islands 2009/01/15 17:49:39 GMT (46.9, 155.2) 36 km 6.9 MB, 7.5 MS, 7.4 MW, 7.4 MW
95.01803 35.2 deg 147.67 deg North Of Honduras 2009/05/28 08:24:45 GMT (16.7, -86.2) 10 km 6.7 MB, 7.2 MS, 7.3 MW, 7.3 MW
92.81685 49.2 deg 23.012 deg Norwegian Sea 2009/08/20 06:35:04 GMT (72.2, 0.9) 6.0 km 5.9 MB, 5.7 MS, 6.0 MW, 6.0 MW
92.333595 70.3 deg 144.411 deg Southern Peru 2009/07/12 06:12:47 GMT (-15.0, -70.4) 199 km 5.7 MB, 6.1 MW, 6.1 MW
91.94556 35.7 deg 156.63 deg Guatemala 2009/05/03 16:21:47 GMT (14.6, -91.2) 124 km 5.6 MB, 6.2 MW, 6.2 MW
86.21971 31.7 deg 169.861 deg Guerrero, Mexico 2009/04/27 16:46:28 GMT (17.0, -99.4) 35 km 5.7 MB, 5.4 MS, 5.8 MW, 5.8 MW
86.13278 30.8 deg 180.949 deg Off Coast Of Jalisco, Mexico 2008/09/24 02:33:05 GMT (17.6, -105.5) 10 km 5.7 MB, 6.2 MS, 6.4 MW, 6.4 MW
84.33886 35.5 deg 158.615 deg Near Coast Of Chiapas, Mexico 2008/10/16 19:41:25 GMT (14.4, -92.4) 24 km 6.1 MB, 6.6 MS, 6.7 MW, 6.6 MW
81.60531 86.7 deg 315.282 deg Kyushu, Japan 2009/09/03 13:26:18 GMT (31.1, 130.0) 166 km 5.9 MB, 6.2 MW, 6.2 MW
80.72422 89.8 deg 243.377 deg Tonga Islands 2008/11/05 03:41:43 GMT (-17.3, -174.4) 188 km 5.7 MW, 5.1 MB, 5.7 MW
79.52586 61.8 deg 311.94 deg Kuril Islands 2009/09/10 02:46:50 GMT (48.3, 154.2) 36 km 6.0 MB, 5.5 MS, 6.0 MW, 5.8 MW
79.304405 35.8 deg 149.221 deg Honduras 2009/06/08 05:13:14 GMT (15.8, -86.9) 10 km 5.5 MB, 4.9 MS, 5.4 MW, 5.4 MW
79.21892 87.6 deg 153.031 deg Near Coast Of Central Chile 2010/03/11 14:55:27 GMT (-34.3, -71.8) 18 km 6.5 MB, 6.7 MW
78.85266 43.6 deg 151.553 deg Off Coast Of Costa Rica 2009/08/13 09:37:35 GMT (7.9, -85.6) 10 km 5.8 MW, 5.3 MB
78.82932 96.3 deg 316.245 deg Southwestern Ryukyu Isl., Japan 2009/08/17 00:05:49 GMT (23.5, 123.5) 20 km 6.2 MB, 6.6 MS, 6.7 MW, 6.6 MW
78.29217 48.1 deg 352.008 deg East Of Severnaya Zemlya 2009/10/07 20:52:13 GMT (81.6, 119.5) 8.0 km 5.7 MB, 5.1 MS, 5.8 MW, 5.8 MW
76.94007 94.9 deg 315.351 deg Southwestern Ryukyu Isl., Japan 2009/08/05 00:17:58 GMT (24.2, 125.1) 25 km 5.9 MB, 5.9 MS, 6.2 MW, 6.1 MW
76.85217 92.4 deg 0.868 deg Tajikistan-Xinjiang Border Reg. 2008/10/05 16:11:10 GMT (39.5, 73.9) 35 km 5.6 MB
76.205635 91.4 deg 315.751 deg Northwest Of Ryukyu Islands 2009/03/26 19:19:59 GMT (27.4, 126.7) 160 km 5.6 MB, 5.9 MW, 5.9 MW
75.98959 59.7 deg 313.702 deg Kuril Islands 2009/04/21 05:26:11 GMT (50.8, 155.0) 152 km 6.0 MB, 6.2 MW, 6.2 MW
74.83206 88.5 deg 314.411 deg Ryukyu Islands, Japan 2009/10/30 07:03:39 GMT (29.2, 129.8) 34 km 6.3 MB, 6.8 MS, 6.8 MW, 6.8 MW
72.727585 92.9 deg 244.993 deg Fiji Islands Region 2008/11/29 05:59:16 GMT (-18.7, -177.7) 386 km 5.7 MB, 6.0 MW, 5.9 MW
70.57816 42.0 deg 148.494 deg Costa Rica 2009/01/08 19:21:35 GMT (10.2, -84.2) 14 km 5.7 MB, 6.0 MS, 6.1 MW, 6.1 MW
69.92168 31.7 deg 356.475 deg Arctic Ocean 2008/10/07 10:00:48 GMT (79.8, -115.4) 10 km 5.6 MB, 5.5 MS, 5.7 MW, 5.7 MW
68.404396 87.0 deg 243.001 deg Samoa Islands Region 2009/10/19 22:49:38 GMT (-15.4, -172.3) 18 km 6.2 MB, 5.7 MS, 6.0 MW, 5.9 MW
67.31655 86.8 deg 36.469 deg Eastern Mediterranean Sea 2009/06/19 14:04:59 GMT (35.4, 28.5) 28 km 5.6 MB, 5.6 MS, 5.8 MW, 5.8 MW
65.39546 77.9 deg 310.366 deg Near East Coast Of Honshu, Japan 2009/06/06 05:52:43 GMT (35.5, 140.9) 34 km 5.8 MB, 5.4 MS, 5.8 MW, 5.7 MW
64.91495 43.9 deg 148.028 deg Costa Rica 2009/03/11 17:24:36 GMT (8.5, -83.2) 14 km 5.8 MB, 5.6 MS, 5.9 MW, 5.9 MW
64.550156 96.4 deg 317.559 deg Taiwan Region 2009/07/13 18:05:01 GMT (24.1, 122.2) 17 km 6.1 MB, 6.3 MS, 6.3 MW, 6.2 MW
64.36222 74.6 deg 310.238 deg Off East Coast Of Honshu, Japan 2010/01/17 06:04:36 GMT (37.9, 143.6) 7.0 km 5.7 MB, 5.2 MS, 5.6 MW, 5.6 MW
64.14552 91.3 deg 243.433 deg Tonga Islands 2008/10/22 12:55:57 GMT (-18.4, -175.4) 233 km 5.9 MB, 6.4 MW, 6.3 MW
64.06053 71.2 deg 143.552 deg Peru-Bolivia Border Region 2009/09/30 19:03:17 GMT (-15.6, -69.3) 255 km 5.9 MB, 5.8 MW
63.96276 93.0 deg 240.164 deg Tonga Islands 2008/10/19 05:10:33 GMT (-21.9, -173.8) 29 km 6.8 MB, 7.0 MS, 6.9 MW, 6.9 MW
63.960884 90.5 deg 315.176 deg Ryukyu Islands, Japan 2009/09/28 19:22:57 GMT (27.9, 127.8) 9.0 km 5.7 MB, 5.6 MS, 5.8 MW, 5.8 MW
63.929718 69.8 deg 144.085 deg Central Peru 2009/03/15 08:19:05 GMT (-14.5, -70.4) 190 km 5.7 MW, 5.1 MB, 5.6 MW
63.831768 46.6 deg 166.38 deg Galapagos Islands Region 2009/03/15 03:14:31 GMT (2.4, -95.1) 10 km 5.5 MS, 5.4 MB, 5.8 MW, 5.8 MW
63.70784 61.8 deg 311.901 deg Kuril Islands 2009/09/11 08:49:11 GMT (48.3, 154.2) 35 km 5.8 MB, 5.0 MS, 5.6 MW, 5.6 MW
63.07928 43.6 deg 117.846 deg Virgin Islands 2008/10/11 10:40:14 GMT (19.2, -64.8) 23 km 6.1 MB, 5.9 MS, 6.1 MW, 6.0 MW
62.59227 87.5 deg 243.495 deg Samoa Islands Region 2009/10/19 07:41:38 GMT (-15.4, -173.0) 10 km 5.8 MW, 5.4 MS, 5.4 MB, 5.8 MW
62.445034 50.1 deg 60.623 deg Northern Mid-Atlantic Ridge 2008/12/19 08:31:51 GMT (47.0, -27.3) 2.0 km 5.8 MB, 5.6 MS, 5.9 MW, 5.8 MW
62.212757 95.6 deg 239.731 deg South Of Tonga Islands 2009/11/02 10:47:13 GMT (-24.1, -175.2) 9.0 km 6.1 MB, 6.1 MS, 6.2 MW, 6.1 MW
62.20504 92.5 deg 241.11 deg Tonga Islands 2009/07/30 20:05:34 GMT (-20.8, -174.3) 10 km 5.9 MB, 5.7 MS, 5.8 MW, 5.7 MW
61.190617 97.8 deg 261.375 deg Santa Cruz Islands 2009/10/08 02:12:39 GMT (-11.7, 166.2) 35 km 5.8 MB, 6.6 MW
61.135456 60.4 deg 103.883 deg Northern Mid-Atlantic Ridge 2008/12/07 06:23:09 GMT (13.4, -44.8) 10 km 5.6 MB, 5.3 MS, 5.7 MW
61.06666 94.6 deg 293.884 deg South Of Mariana Islands 2009/02/12 13:41:43 GMT (12.1, 143.8) 40 km 5.5 MB
60.574154 86.2 deg 150.533 deg Mendoza Province, Argentina 2009/05/08 13:44:53 GMT (-32.1, -69.7) 112 km 5.6 MB, 5.4 MW
58.606777 92.7 deg 241.12 deg Tonga Islands 2008/10/09 17:49:58 GMT (-21.0, -174.4) 10 km 5.8 MB, 5.6 MS, 5.9 MW, 5.9 MW
58.52768 88.1 deg 244.566 deg Tonga Islands 2008/11/08 09:15:51 GMT (-15.2, -174.2) 140 km 5.5 MW, 5.3 MB
58.509556 58.7 deg 151.955 deg Near Coast Of Northern Peru 2009/02/09 14:09:02 GMT (-6.6, -81.2) 15 km 5.5 MB, 5.5 MS, 6.0 MW, 5.9 MW
58.268036 88.4 deg 297.624 deg Mariana Islands 2010/03/08 09:47:11 GMT (19.3, 144.7) 457 km 6.0 MB, 6.1 MW, 6.1 MW
58.225285 62.8 deg 145.596 deg Peru-Brazil Border Region 2010/01/25 22:52:46 GMT (-8.5, -74.5) 147 km 5.7 MB, 5.9 MW, 5.9 MW
57.422928 83.4 deg 146.464 deg Catamarca Province, Argentina 2009/08/12 18:00:52 GMT (-27.9, -66.7) 174 km 5.5 MW, 5.3 MB, 5.5 MW
56.13694 79.3 deg 144.59 deg Jujuy Province, Argentina 2010/01/28 08:04:14 GMT (-23.4, -66.7) 208 km 5.8 MB, 5.9 MW, 5.9 MW
56.047585 93.1 deg 240.01 deg Tonga Islands 2008/10/19 12:55:05 GMT (-22.0, -173.7) 35 km 5.7 MB, 5.3 MS, 5.6 MW, 5.5 MW
55.976307 95.4 deg 3.455 deg Hindu Kush Region, Afghanistan 2009/01/03 20:23:20 GMT (36.4, 70.7) 205 km 5.8 MB
55.842907 64.5 deg 311.481 deg Kuril Islands 2009/04/17 14:51:58 GMT (46.2, 151.7) 49 km 5.5 MB, 5.0 MS, 5.7 MW, 5.6 MW
55.680054 74.6 deg 311.601 deg Near East Coast Of Honshu, Japan 2009/06/23 07:37:17 GMT (38.8, 142.4) 37 km 5.7 MB, 5.0 MS, 5.6 MW, 5.6 MW
55.412216 45.4 deg 302.806 deg Andreanof Islands, Aleutian Is. 2009/03/30 12:07:28 GMT (51.5, -178.3) 31 km 6.0 MB, 5.5 MS, 5.7 MW, 5.7 MW
55.120495 95.4 deg 3.341 deg Hindu Kush Region, Afghanistan 2009/01/04 23:12:59 GMT (36.4, 70.9) 187 km 5.7 MB, 5.7 MW, 5.6 MW
55.111324 63.6 deg 142.304 deg Western Brazil 2009/01/29 22:28:05 GMT (-8.1, -71.4) 602 km 5.7 MW, 5.3 MB, 5.6 MW
54.966198 68.0 deg 312.187 deg Kuril Islands 2010/03/06 13:31:12 GMT (44.2, 147.6) 53 km 5.7 MW, 5.1 MS, 5.4 MB, 5.6 MW
54.624214 77.1 deg 141.684 deg Southern Bolivia 2008/10/12 20:55:41 GMT (-20.1, -65.0) 353 km 6.0 MB, 6.2 MW, 6.2 MW
53.841785 43.9 deg 148.017 deg Costa Rica 2009/03/11 21:03:58 GMT (8.5, -83.2) 17 km 5.7 MB, 5.6 MS, 5.9 MW, 5.8 MW
53.768436 87.7 deg 242.176 deg Samoa Islands Region 2009/10/17 10:45:26 GMT (-16.4, -172.0) 10 km 5.7 MB, 5.3 MS, 5.7 MW, 5.7 MW
53.505016 87.6 deg 243.735 deg Tonga Islands 2009/10/01 06:13:32 GMT (-15.4, -173.3) 10 km 5.6 MB, 5.7 MS, 5.8 MW, 5.7 MW
52.965435 92.5 deg 1.045 deg Tajikistan-Xinjiang Border Reg. 2008/10/05 15:55:24 GMT (39.4, 73.7) 35 km 5.9 MB
52.314034 65.1 deg 190.925 deg Southern East Pacific Rise 2010/03/07 07:05:23 GMT (-16.2, -115.3) 10 km 5.8 MB, 5.7 MS, 6.3 MW, 6.2 MW
51.738377 97.9 deg 261.472 deg Santa Cruz Islands 2009/08/10 04:06:31 GMT (-11.6, 166.1) 35 km 5.8 MB, 6.3 MS, 6.6 MW, 6.6 MW
50.490864 85.9 deg 152.295 deg Near Coast Of Central Chile 2008/12/18 21:19:28 GMT (-32.5, -71.7) 18 km 5.8 MB, 6.0 MS, 6.2 MW, 6.1 MW
50.110867 70.4 deg 144.26 deg Southern Peru 2009/09/05 03:58:39 GMT (-15.1, -70.2) 210 km 5.8 MW, 5.2 MB, 5.8 MW
50.077133 86.7 deg 300.692 deg Volcano Islands, Japan Region 2009/07/29 14:52:08 GMT (22.6, 143.3) 140 km 5.5 MW, 5.2 MB, 5.4 MW
48.259434 88.5 deg 243.317 deg Tonga Islands 2009/10/02 01:07:39 GMT (-16.3, -173.5) 8.0 km 6.1 MB, 6.0 MS, 6.1 MW, 6.1 MW
48.25829 40.3 deg 188.229 deg East Central Pacific Ocean 2010/01/21 08:03:22 GMT (8.3, -110.4) 10 km 5.8 MB, 5.3 MS, 5.6 MW, 5.6 MW
47.768356 92.3 deg 343.696 deg Qinghai, China 2009/08/28 01:52:06 GMT (37.7, 95.7) 13 km 6.2 MB, 6.2 MS, 6.2 MW, 6.2 MW
47.369987 92.2 deg 293.998 deg Mariana Islands 2009/06/19 15:06:24 GMT (14.1, 145.2) 114 km 5.5 MB, 5.5 MW
47.3493 47.1 deg 305.017 deg Rat Islands, Aleutian Islands 2009/10/07 05:38:37 GMT (52.2, 178.1) 138 km 5.6 MB, 5.6 MW, 5.6 MW
46.875275 92.4 deg 343.577 deg Qinghai, China 2008/11/10 01:22:02 GMT (37.6, 95.8) 19 km 6.4 MB, 6.4 MS, 6.3 MW, 6.3 MW
46.394245 45.4 deg 302.564 deg Andreanof Islands, Aleutian Is. 2009/06/22 21:05:33 GMT (51.3, -178.2) 29 km 5.5 MB, 5.0 MS, 5.4 MW, 5.4 MW
46.305897 78.3 deg 186.055 deg Easter Island Region 2009/09/10 19:46:03 GMT (-29.9, -111.8) 10 km 5.5 MW, 5.4 MB
46.102303 58.1 deg 151.404 deg Near Coast Of Northern Peru 2009/02/15 10:04:49 GMT (-5.9, -80.9) 21 km 5.8 MB, 5.7 MS, 6.1 MW, 6.1 MW
45.9732 76.3 deg 310.066 deg Off East Coast Of Honshu, Japan 2008/12/20 10:29:23 GMT (36.5, 142.4) 19 km 6.0 MB, 6.3 MS, 6.3 MW, 6.3 MW
43.751614 88.9 deg 243.03 deg Tonga Islands 2009/05/17 06:23:03 GMT (-16.8, -173.5) 67 km 5.5 MB, 5.6 MW, 5.6 MW
43.720295 45.5 deg 302.459 deg Andreanof Islands, Aleutian Is. 2009/06/22 19:55:24 GMT (51.3, -178.2) 35 km 5.6 MB, 5.6 MW, 5.6 MW
43.712765 96.2 deg 316.236 deg Southwestern Ryukyu Isl., Japan 2009/08/18 13:17:35 GMT (23.5, 123.5) 5.7 km 5.6 MB, 5.2 MS
43.149036 71.8 deg 314.291 deg Hokkaido, Japan Region 2009/02/28 00:35:56 GMT (42.6, 142.1) 105 km 5.5 MB, 5.5 MW, 5.5 MW
40.882957 73.6 deg 312.617 deg Near East Coast Of Honshu, Japan 2009/02/15 09:24:31 GMT (40.2, 142.2) 33 km 6.1 MB, 5.5 MS, 5.7 MW, 5.7 MW
40.362858 88.0 deg 296.72 deg Mariana Islands 2008/12/02 12:31:43 GMT (19.1, 145.8) 137 km 5.9 MB, 5.9 MW, 5.9 MW
35.884747 73.4 deg 314.593 deg Hokkaido, Japan Region 2008/09/22 07:31:59 GMT (41.6, 140.4) 149 km 5.7 MW, 5.3 MB, 5.6 MW