Station AF EKNA - Ekona, Cameroon

Network: AF - Africa Array

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
EKNA Ekona, Cameroon (4.23, 9.33) 2007-01-23 / 2599-12-31 354 m
Crust2 Type:G2,Archean 0.5 km seds.
Thickness Estimate:48 km
Thickness StdDev:12 km
Vp/Vs Estimate:1.60
Vp/Vs StdDev:0.09
Vs Estimate:4.012 km/s
Poisson's Ratio:0.18
Peak Value:0.00
Assumed Vp:6.419 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.892
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

1 with match > 90% ( 0.8333333 %) and 4 with match > 80% ( 3.3333333 %) out of 120.

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 48 km 1.60 6.419 km/s 4.012 km/s 0.18
Crust2.0 39 km 1.77 6.419 km/s 3.636 km/s 0.26 G2,Archean 0.5 km seds.
Global Maxima 48 km 1.60 6.419 km/s 4.012 km/s 0.18 amp=0.004278871
Local Maxima 1 38 km 1.78 6.419 km/s 3.611 km/s 0.27 amp=0.0037760255
Local Maxima 2 61 km 1.80 6.419 km/s 3.561 km/s 0.28 amp=0.0033510216
Local Maxima 3 25 km 1.65 6.419 km/s 3.879 km/s 0.21 amp=0.003169843
Local Maxima 4 35 km 1.72 6.419 km/s 3.738 km/s 0.24 amp=0.0026420648
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps4.49 SECOND
PpPs19.44 SECOND
PsPs/PpSs23.93 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

(4 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
97.04089 96.3 deg 283.08 deg Off Coast Of Central America 2014/10/14 03:51:35 GMT (12.6, -88.0) 40 km 7.3 MWW, 7.4 MI
87.38418 82.2 deg 248.63 deg Near Coast Of Northern Chile 2014/04/04 01:37:51 GMT (-20.6, -70.7) 20 km 6.1 MWP, 6.1 MWB, 6.1 MWW, 6.3 MWC
84.4587 67.9 deg 284.013 deg North Atlantic Ocean 2014/02/18 09:27:13 GMT (14.7, -58.9) 17 km 6.5 MWW, 6.3 MWB, 6.5 MWC, 6.6 MWC, 6.7 MI
81.55048 74.0 deg 53.986 deg Xizang 2014/02/12 09:19:49 GMT (35.9, 82.6) 10 km 6.9 MWW, 6.9 MWB, 6.9 MWC

Losers

(116 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
99.02898 82.2 deg 249.615 deg Near Coast Of Northern Chile 2014/04/01 23:46:46 GMT (-19.6, -70.8) 20 km 8.2 MWW, 8.0 MI, 8.1 MWC
97.29112 67.2 deg 202.22 deg South Sandwich Islands Region 2014/06/29 07:52:56 GMT (-55.5, -28.5) 16 km 6.9 MWW, 7.2 MI
94.31481 82.0 deg 249.31 deg Near Coast Of Northern Chile 2014/03/16 21:16:30 GMT (-19.9, -70.6) 20 km 6.7 MWW, 6.7 MWC, 7.0 MI
93.26467 82.2 deg 249.502 deg Near Coast Of Northern Chile 2014/03/22 12:59:59 GMT (-19.8, -70.9) 20 km 6.2 MWW, 6.2 MWB, 6.3 MWC, 6.4 MWC
93.26307 84.2 deg 254.949 deg Central Peru 2014/08/24 23:21:45 GMT (-14.6, -73.6) 101 km 6.9 MWW, 6.8 MI, 6.9 MWB
92.9998 82.6 deg 100.658 deg South Indian Ocean 2014/06/14 11:11:00 GMT (-10.1, 91.1) 7.1 km 6.4 MWP, 6.4 MWB
92.976616 67.0 deg 205.747 deg South Georgia Island Region 2014/03/17 13:24:48 GMT (-53.2, -32.3) 5.4 km 5.6 MB, 5.8 MWB, 5.9 MWC
91.98848 84.5 deg 236.717 deg Near Coast Of Central Chile 2014/08/23 22:32:23 GMT (-32.7, -71.4) 32 km 6.4 MWW, 6.6 MWP
91.57726 82.2 deg 249.513 deg Near Coast Of Northern Chile 2014/03/23 18:20:03 GMT (-19.7, -70.8) 35 km 6.0 MB, 6.2 MWB, 6.2 MWW, 6.3 MWC
91.44098 36.7 deg 14.166 deg Greece-Albania Border Region 2014/05/12 00:54:32 GMT (39.8, 20.3) 15 km 4.9 mb
89.75456 57.6 deg 180.441 deg Bouvet Island Region 2014/04/15 03:57:02 GMT (-53.5, 8.7) 12 km 6.9 MWP, 6.8 MI, 6.9 MI
89.34292 82.0 deg 248.959 deg Near Coast Of Northern Chile 2014/04/03 01:58:31 GMT (-20.3, -70.6) 23 km 6.5 MWW, 6.5 MWB, 6.6 MWC
89.03529 75.5 deg 288.474 deg Puerto Rico Region 2014/01/13 04:01:03 GMT (19.0, -66.8) 20 km 6.4 MWW, 6.2 MWB, 6.3 MWC, 6.4 MI, 6.4 MWC
87.62312 86.8 deg 255.69 deg Near Coast Of Peru 2014/03/15 08:59:21 GMT (-14.1, -76.3) 20 km 6.1 MWW, 6.0 MWB, 6.2 MWC
86.81303 38.8 deg 19.833 deg Aegean Sea 2014/05/24 09:25:03 GMT (40.3, 25.5) 10 km 6.4 MWP, 6.4 M
86.79583 66.9 deg 202.113 deg South Sandwich Islands Region 2014/06/29 14:20:37 GMT (-55.4, -28.0) 10 km 5.6 MB, 5.8 MWB, 5.9 MWC
86.05771 67.8 deg 200.774 deg South Sandwich Islands Region 2014/02/01 03:58:43 GMT (-56.8, -27.3) 130 km 6.1 MWW, 6.1 MWC, 6.1 MWB, 6.2 MWC
85.65385 82.2 deg 249.419 deg Near Coast Of Northern Chile 2014/04/02 00:03:12 GMT (-19.8, -70.9) 10 km 5.8 MB
85.38518 77.1 deg 204.484 deg Scotia Sea 2014/02/08 19:50:36 GMT (-60.4, -45.2) 24 km 5.7 MWW, 5.6 MWB, 5.8 MWC
83.54259 82.2 deg 249.286 deg Near Coast Of Northern Chile 2014/03/18 21:26:45 GMT (-20.0, -70.8) 3.8 km 5.8 MWW, 5.9 MWC, 6.0 MWR, 6.0 MWB
81.39112 85.1 deg 272.651 deg Colombia 2014/01/09 12:50:16 GMT (3.0, -75.9) 15 km 5.0 MW
79.2746 88.4 deg 88.165 deg Northern Sumatra, Indonesia 2014/05/03 14:47:06 GMT (2.0, 97.9) 60 km 5.3 MW
79.18572 91.1 deg 277.668 deg South Of Panama 2014/05/14 05:28:25 GMT (7.6, -82.3) 19 km 5.3 MW
78.40953 82.1 deg 248.422 deg Near Coast Of Northern Chile 2014/04/03 05:26:16 GMT (-20.8, -70.5) 24 km 6.2 MWP, 6.2 MWR, 6.3 MWW, 6.5 MWC
76.7927 66.8 deg 202.091 deg South Sandwich Islands Region 2014/07/12 18:20:37 GMT (-55.3, -27.9) 10 km 5.6 MWW, 5.6 MWC
75.123055 45.7 deg 47.108 deg Iran-Iraq Border Region 2014/08/18 05:25:50 GMT (32.7, 47.8) 10 km 6.0 M
75.01198 35.0 deg 20.446 deg Southern Greece 2014/08/29 03:45:06 GMT (36.7, 23.8) 92 km 5.6 MB
74.48057 70.2 deg 197.281 deg South Sandwich Islands Region 2014/03/19 20:17:43 GMT (-60.7, -25.3) 10 km 5.5 MWW, 5.4 MWB, 5.5 MWC
74.30355 82.1 deg 249.427 deg Near Coast Of Northern Chile 2014/03/24 11:26:39 GMT (-19.8, -70.8) 22 km 5.7 MWW, 5.7 MWB, 5.8 MWC
74.185455 71.0 deg 48.429 deg Kyrgyzstan-Xinjiang Border Reg. 2014/05/04 20:23:32 GMT (40.7, 77.8) 17 km 5.4 mb
73.233444 82.3 deg 249.373 deg Near Coast Of Northern Chile 2014/04/01 23:57:57 GMT (-19.9, -70.9) 20 km 6.9 MWW, 6.9 MWC
71.85075 35.8 deg 265.319 deg Central Mid-Atlantic Ridge 2014/05/24 11:49:26 GMT (0.7, -26.3) 10 km 5.9 MWC, 5.9 MWC
70.85717 33.0 deg 350.884 deg Northern Algeria 2014/08/01 04:11:16 GMT (36.9, 3.2) 10 km 5.6 MWP
70.66892 67.0 deg 202.242 deg South Sandwich Islands Region 2014/05/22 08:38:01 GMT (-55.4, -28.3) 35 km 5.5 MB
70.59674 63.1 deg 347.491 deg Iceland 2014/10/07 10:22:31 GMT (64.5, -17.2) 10 km 5.5 MWW, 5.4 MWB, 5.5 MWC
70.05951 67.0 deg 202.258 deg South Sandwich Islands Region 2014/06/29 17:33:54 GMT (-55.4, -28.3) 10 km 5.1 mb
69.560104 82.2 deg 249.65 deg Near Coast Of Northern Chile 2014/03/24 15:45:31 GMT (-19.6, -70.8) 18 km 5.6 MWB, 5.5 MWR, 5.7 MWC, 5.7 MWW
68.852554 84.6 deg 82.589 deg Nicobar Islands, India Region 2014/03/21 13:44:10 GMT (7.8, 94.4) 21 km 5.0 mb
68.68169 82.1 deg 248.403 deg Near Coast Of Northern Chile 2014/04/03 05:28:50 GMT (-20.8, -70.6) 11 km 5.6 mb
67.79862 57.2 deg 179.908 deg Southwest Of Africa 2014/03/08 07:14:09 GMT (-53.2, 9.5) 10 km 5.4 MW
67.45553 82.2 deg 249.137 deg Near Coast Of Northern Chile 2014/04/02 06:29:16 GMT (-20.1, -70.8) 15 km 5.2 mb
66.50441 31.6 deg 261.518 deg Central Mid-Atlantic Ridge 2014/03/29 07:46:50 GMT (-0.8, -21.9) 12 km 5.9 MWW, 5.8 MWB, 6.0 MWC
66.18402 73.9 deg 53.946 deg Xizang 2014/02/11 02:14:56 GMT (35.9, 82.4) 8.1 km 5.3 MW
66.05154 89.4 deg 66.715 deg Yunnan, China 2014/10/07 13:49:39 GMT (23.4, 100.5) 5.6 km 5.8 MB
65.624725 88.9 deg 70.445 deg Thailand 2014/05/05 11:08:43 GMT (19.7, 99.7) 7.4 km 6.0 MWP
65.224106 96.3 deg 95.606 deg Sunda Strait, Indonesia 2014/01/05 11:32:11 GMT (-6.1, 105.3) 54 km 5.1 mb
65.019485 93.8 deg 96.687 deg Southwest Of Sumatra, Indonesia 2014/05/23 09:06:56 GMT (-7.0, 102.6) 17 km 4.9 MW
64.35026 35.4 deg 20.09 deg Southern Greece 2014/04/04 20:08:07 GMT (37.2, 23.8) 107 km 5.5 MWB, 5.5 MWR, 5.6 MWC, 5.6 MWW
64.337006 83.1 deg 86.235 deg Off W Coast Of Northern Sumatra 2014/05/18 01:02:29 GMT (4.3, 92.7) 9.8 km 6.2 MWP
63.983185 67.9 deg 53.372 deg Eastern Kashmir 2014/07/03 20:40:01 GMT (35.6, 75.1) 35 km 4.9 mb
61.945843 80.6 deg 248.875 deg Northern Chile 2014/08/23 04:45:33 GMT (-20.2, -69.1) 98 km 5.7 MB
61.571873 85.1 deg 235.893 deg Near Coast Of Central Chile 2014/03/04 10:51:15 GMT (-33.6, -72.0) 20 km 5.7 MWW, 5.7 MWB, 5.8 MWC
61.403915 82.4 deg 249.255 deg Off Coast Of Northern Chile 2014/10/07 12:33:22 GMT (-20.0, -71.0) 9.0 km 5.2 MW
61.32971 82.2 deg 249.057 deg Near Coast Of Northern Chile 2014/04/15 16:21:17 GMT (-20.2, -70.7) 18 km 5.1 MW
60.79197 29.9 deg 232.0 deg Southern Mid-Atlantic Ridge 2014/02/20 04:09:57 GMT (-14.1, -14.6) 14 km 5.1 MW
60.449543 95.1 deg 95.501 deg Southern Sumatra, Indonesia 2014/10/18 08:02:35 GMT (-5.9, 104.1) 76 km 4.9 MW
60.269993 35.5 deg 265.373 deg Central Mid-Atlantic Ridge 2014/08/10 12:12:24 GMT (0.7, -26.0) 10 km 5.1 MW, 5.0 mb
60.26243 54.8 deg 304.35 deg Northern Mid-Atlantic Ridge 2014/10/08 03:04:07 GMT (30.3, -41.9) 2.8 km 5.5 MW
58.92851 85.0 deg 78.076 deg Andaman Islands, India Region 2014/02/02 23:43:59 GMT (12.3, 95.1) 24 km 5.4 MW
58.526527 63.3 deg 347.395 deg Iceland 2014/09/09 01:07:31 GMT (64.6, -17.6) 10 km 5.2 MW
57.522243 82.3 deg 249.993 deg Near Coast Of Northern Chile 2014/05/05 09:02:55 GMT (-19.3, -71.0) 21 km 4.9 MW
57.309338 93.3 deg 137.619 deg Southeast Indian Ridge 2014/05/11 12:34:57 GMT (-47.9, 99.7) 12 km 5.2 mb
57.13151 82.2 deg 249.325 deg Near Coast Of Northern Chile 2014/03/17 11:12:17 GMT (-19.9, -70.9) 26 km 5.0 MW
56.846977 57.9 deg 132.13 deg Southwest Indian Ridge 2014/04/28 12:43:53 GMT (-32.0, 57.0) 19 km 5.3 MW
55.90156 48.6 deg 57.172 deg Southern Iran 2014/01/02 03:13:55 GMT (27.2, 54.4) 9.1 km 5.3 MW
55.404476 63.2 deg 347.422 deg Iceland 2014/09/21 10:51:47 GMT (64.5, -17.4) 2.6 km 5.5 MW
55.25692 63.2 deg 347.423 deg Iceland 2014/09/07 07:07:59 GMT (64.5, -17.4) 5.0 km 5.5 MWW, 5.3 MWB, 5.6 MWC
55.153297 75.7 deg 249.016 deg Southern Bolivia 2014/01/27 16:42:37 GMT (-19.3, -63.9) 600 km 5.6 MWB
55.016308 78.6 deg 278.97 deg Venezuela 2014/02/19 11:10:13 GMT (9.7, -69.8) 20 km 5.3 MW
54.809982 82.3 deg 249.312 deg Near Coast Of Northern Chile 2014/06/19 09:38:37 GMT (-20.0, -70.9) 19 km 5.7 MWP
54.351395 78.7 deg 245.944 deg Jujuy Province, Argentina 2014/05/14 03:38:22 GMT (-22.7, -66.6) 223 km 5.6 MW
54.339447 82.2 deg 249.452 deg Near Coast Of Northern Chile 2014/03/24 11:40:44 GMT (-19.8, -70.8) 23 km 5.5 MB, 5.5 MWR, 5.6 MWW, 5.7 MWC
53.3156 76.3 deg 240.281 deg Santiago Del Estero Prov., Arg. 2014/04/18 07:46:57 GMT (-27.7, -62.8) 610 km 5.6 MW
53.268723 97.8 deg 30.519 deg Southeastern Siberia, Russia 2014/08/16 15:50:55 GMT (57.5, 120.7) 11 km 4.9 MW, 4.4 MS, 4.9 mb
52.240627 39.2 deg 1.967 deg Central Italy 2014/08/09 13:47:49 GMT (43.5, 11.0) 9.9 km 3.4 Mw, 3.4 ML
51.962822 81.9 deg 249.072 deg Near Coast Of Northern Chile 2014/04/05 05:44:57 GMT (-20.1, -70.5) 39 km 5.3 MW
51.71905 94.5 deg 12.544 deg Laptev Sea 2014/06/21 14:37:21 GMT (74.8, 134.0) 10 km 3.6 mb
51.5265 67.3 deg 201.565 deg South Sandwich Islands Region 2014/09/22 16:01:42 GMT (-56.0, -27.8) 112 km 5.6 MB, 5.7 MWB
51.377457 82.2 deg 248.69 deg Near Coast Of Northern Chile 2014/04/03 09:23:21 GMT (-20.6, -70.7) 15 km 5.6 MB, 5.3 MWR
50.966805 82.2 deg 249.63 deg Near Coast Of Northern Chile 2014/04/02 00:06:44 GMT (-19.6, -70.8) 10 km 5.7 MB
50.38979 52.3 deg 40.521 deg Caspian Sea 2014/06/07 06:05:27 GMT (40.3, 51.6) 12 km 5.5 MB
50.332355 82.1 deg 248.521 deg Near Coast Of Northern Chile 2014/01/06 03:59:02 GMT (-20.7, -70.6) 27 km 5.2 MW
49.937122 45.8 deg 349.194 deg France 2014/07/11 11:54:32 GMT (49.1, -2.5) 8.0 km 4.1 mb, 4.5 Md, 4.6 Ml
49.638565 94.6 deg 282.53 deg Nicaragua 2014/04/14 05:07:04 GMT (12.2, -86.3) 17 km 5.2 MW
48.929325 55.3 deg 160.02 deg Prince Edward Islands Region 2014/06/25 09:29:54 GMT (-47.0, 33.6) 10 km 5.2 MW
48.538837 83.3 deg 89.657 deg Off W Coast Of Northern Sumatra 2014/06/16 14:03:18 GMT (0.8, 92.7) 10 km 4.5 mb
48.075386 64.6 deg 51.571 deg Hindu Kush Region, Afghanistan 2014/03/19 14:15:43 GMT (36.5, 70.7) 193 km 4.7 mb
47.683147 63.3 deg 347.464 deg Iceland 2014/09/01 11:41:10 GMT (64.7, -17.5) 10 km 5.5 MWW, 5.5 MWC
47.434044 67.1 deg 199.705 deg South Sandwich Islands Region 2014/05/13 14:40:55 GMT (-56.9, -25.2) 20 km 5.5 MW
46.992306 94.9 deg 282.016 deg Near Coast Of Nicaragua 2014/03/28 14:36:08 GMT (11.6, -86.6) 46 km 5.6 MWW, 5.5 MWB, 5.6 MWC
46.704746 81.5 deg 248.996 deg Northern Chile 2014/08/14 00:02:55 GMT (-20.2, -70.0) 48 km 5.7 MB
45.928295 83.4 deg 66.617 deg Myanmar-India Border Region 2014/01/29 13:46:50 GMT (23.8, 93.9) 59 km 5.1 MW
45.004463 82.3 deg 249.588 deg Near Coast Of Northern Chile 2014/05/14 05:51:50 GMT (-19.7, -71.0) 27 km 5.3 MW
44.18223 83.4 deg 238.663 deg Chile-Argentina Border Region 2014/07/13 07:18:25 GMT (-30.6, -70.5) 91 km 5.4 MW, 5.2 mb
44.027485 82.2 deg 249.454 deg Near Coast Of Northern Chile 2014/03/22 13:14:55 GMT (-19.8, -70.9) 4.6 km 5.2 Mww
43.846317 89.9 deg 224.27 deg Off Coast Of Southern Chile 2014/03/02 17:03:43 GMT (-45.8, -76.2) 10 km 5.4 MW
43.779755 47.3 deg 74.202 deg Owen Fracture Zone Region 2014/04/02 10:36:43 GMT (14.5, 56.3) 19 km 4.9 mb
43.55006 89.8 deg 281.688 deg North Of Panama 2014/06/16 13:26:46 GMT (11.7, -81.3) 19 km 5.3 MW
43.202087 65.0 deg 51.195 deg Afghanistan-Tajikistan Bord Reg. 2014/07/19 07:17:56 GMT (36.9, 71.1) 84 km 5.3 MW, 5.2 Mwb, 5.3 mb
42.374435 78.6 deg 247.258 deg Southern Bolivia 2014/10/23 14:39:57 GMT (-21.4, -66.7) 223 km 3.9 ML
40.999626 49.6 deg 58.437 deg Southern Iran 2014/05/27 05:44:31 GMT (26.6, 55.8) 12 km 5.3 MW
40.850483 76.6 deg 358.006 deg North Of Svalbard 2014/10/08 10:29:57 GMT (80.6, -2.6) 8.2 km 5.0 MW
40.157448 97.8 deg 96.069 deg Java, Indonesia 2014/01/15 09:26:11 GMT (-6.6, 106.7) 129 km 4.5 mb
39.922565 62.3 deg 50.894 deg Hindu Kush Region, Afghanistan 2014/07/13 16:23:44 GMT (36.4, 67.7) 35 km 5.0 MW, 5.0 mb
39.616848 67.9 deg 351.299 deg Jan Mayen Island Region 2014/06/16 14:24:31 GMT (70.4, -15.2) 11 km 5.5 MW
38.647095 84.9 deg 253.672 deg Near Coast Of Peru 2014/02/02 08:57:09 GMT (-15.9, -74.1) 45 km 5.2 MW
38.10142 81.6 deg 247.855 deg Northern Chile 2014/05/30 15:32:27 GMT (-21.3, -70.0) 57 km 5.6 MWW, 5.5 MWR, 5.6 MWB
37.733315 63.2 deg 347.332 deg Iceland 2014/10/18 09:40:12 GMT (64.5, -17.6) 4.7 km 5.3 MW
36.155792 66.9 deg 199.38 deg South Sandwich Islands Region 2014/04/11 14:22:06 GMT (-57.0, -24.5) 10 km 5.1 mb
35.949047 45.6 deg 47.22 deg Iran-Iraq Border Region 2014/08/19 10:32:51 GMT (32.5, 47.7) 17 km 4.8 mb
35.46188 95.3 deg 282.141 deg Near Coast Of Nicaragua 2014/03/24 11:24:42 GMT (11.7, -87.0) 61 km 4.5 mb
34.780422 51.1 deg 312.674 deg Azores Islands Region 2014/07/04 21:08:45 GMT (35.1, -34.9) 10 km 5.6 MW, 5.2 mb, 5.0 Ms_20, 5.4 Mwb, 5.6 Mwc
34.644737 89.3 deg 288.74 deg North Of Honduras 2014/09/03 10:01:04 GMT (18.9, -81.3) 8.9 km 5.3 MW
32.125076 85.0 deg 84.975 deg Northern Sumatra, Indonesia 2014/08/04 10:36:09 GMT (5.4, 94.7) 57 km 5.0 MW, 5.3 mb
31.531164 63.3 deg 347.51 deg Iceland 2014/08/28 08:13:42 GMT (64.7, -17.4) 4.0 km 5.4 MW, 5.0 mb, 5.0 Ms_20, 5.4 Mwb, 5.4 Mww, 5.5 Mwc
12.780993 63.3 deg 347.389 deg Iceland 2014/10/15 11:16:34 GMT (64.7, -17.6) 4.5 km 5.5 MW