Station XA SA37 - XA.SA37

Network: XA97 - Anatomy of an Archean Craton, South Africa

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
SA37 XA.SA37 (-25.97, 23.72) 1997-04-20 / 1999-12-31 1142 m
Crust2 Type:I7,late Proter., 1 km seds.
Thickness Estimate:35 km
Thickness StdDev:0.3 km
Vp/Vs Estimate:1.69
Vp/Vs StdDev:0.01
Vs Estimate:3.907 km/s
Poisson's Ratio:0.23
Peak Value:0.07
Assumed Vp:6.612 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.378
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

6 with match > 90% ( 24.0 %) and 10 with match > 80% ( 40.0 %) out of 25.

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 35 km 1.69 6.612 km/s 3.907 km/s 0.23
Crust2.0 42 km 1.78 6.612 km/s 3.71 km/s 0.27 I7,late Proter., 1 km seds.
Global Maxima 35 km 1.69 6.612 km/s 3.907 km/s 0.23 amp=0.06590822
Local Maxima 1 32 km 1.75 6.612 km/s 3.778 km/s 0.26 amp=0.02754112
Local Maxima 2 42 km 1.60 6.612 km/s 4.126 km/s 0.18 amp=0.021814855
Local Maxima 3 36 km 1.69 6.612 km/s 3.918 km/s 0.23 amp=0.015024475
Local Maxima 4 27 km 1.86 6.612 km/s 3.555 km/s 0.30 amp=0.008587078
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps3.64 SECOND
PpPs14.15 SECOND
PsPs/PpSs17.79 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

(10 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
98.79385 81.6 deg 157.931 deg Balleny Islands Region 1998/03/25 03:12:25 GMT (-62.9, 149.5) 10 km 6.6 MB, 8.0 MS, 8.3 UNKNOWN, 8.1 MW
98.52017 81.0 deg 240.08 deg Near Coast Of Central Chile 1997/10/15 01:03:33 GMT (-30.9, -71.2) 58 km 6.8 MB, 6.8 MS, 7.3 UNKNOWN, 7.1 MW
97.57804 83.2 deg 246.862 deg Near Coast Of Northern Chile 1998/01/30 12:16:08 GMT (-23.9, -70.2) 42 km 6.3 MB, 6.5 MS, 7.0 UNKNOWN, 6.7 ME
95.29564 81.1 deg 239.963 deg Near Coast Of Central Chile 1998/01/12 10:14:07 GMT (-31.0, -71.4) 35 km 5.8 MB, 6.2 MS, 6.6 UNKNOWN, 6.2 ME
94.61675 79.8 deg 230.2 deg Off Coast Of Southern Chile 1998/04/01 22:42:56 GMT (-40.3, -74.9) 9.0 km 6.2 MB, 6.0 MS, 6.7 UNKNOWN, 6.6 ME
92.619316 76.4 deg 37.538 deg Hindu Kush Region, Afghanistan 1997/05/13 14:13:45 GMT (36.4, 70.9) 196 km 6.1 MB, 6.5 UNKNOWN, 6.4 MW
85.07359 34.5 deg 220.838 deg Southern Mid-Atlantic Ridge 1997/04/25 09:11:34 GMT (-48.3, -10.0) 10 km 5.8 MS, 5.3 MB, 5.8 UNKNOWN, 5.7 MW
84.09031 49.4 deg 212.137 deg South Sandwich Islands Region 1997/10/05 18:04:30 GMT (-59.7, -29.2) 274 km 6.0 MB, 6.3 UNKNOWN, 6.3 MW
81.74067 81.9 deg 240.639 deg Near Coast Of Central Chile 1997/07/06 09:54:00 GMT (-30.1, -71.9) 19 km 5.8 MB, 6.5 MS, 6.8 UNKNOWN, 6.4 ME
80.36272 46.9 deg 213.722 deg South Sandwich Islands Region 1997/06/02 21:24:38 GMT (-57.8, -25.5) 33 km 5.9 MB, 5.8 MS, 6.1 UNKNOWN, 6.1 MW

Losers

(15 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
80.00538 82.1 deg 241.417 deg Near Coast Of Central Chile 1997/07/19 12:22:57 GMT (-29.3, -71.7) 26 km 5.8 MB, 5.5 MS, 5.9 UNKNOWN, 5.8 MW
77.4365 76.3 deg 37.45 deg Hindu Kush Region, Afghanistan 1997/12/17 05:51:29 GMT (36.4, 70.8) 207 km 5.5 MB, 6.3 UNKNOWN
74.89313 41.6 deg 81.419 deg Mid-Indian Ridge 1997/09/25 14:20:48 GMT (-13.8, 66.2) 10 km 5.3 MB, 5.7 MS, 6.0 UNKNOWN, 6.0 MW
69.98208 86.3 deg 256.617 deg Peru-Bolivia Border Region 1997/11/28 22:53:41 GMT (-13.7, -68.8) 586 km 6.4 MB, 6.6 UNKNOWN, 6.6 MW
69.48141 80.6 deg 158.004 deg South Of Australia 1998/03/25 12:17:22 GMT (-63.6, 147.9) 10 km 5.8 MB, 6.1 MS, 6.5 UNKNOWN
68.108894 48.8 deg 68.294 deg Carlsberg Ridge 1998/01/14 18:53:14 GMT (-2.1, 68.1) 10 km 5.6 MS, 5.3 MB
66.86216 84.9 deg 93.837 deg Java Sea 1997/07/11 09:55:12 GMT (-5.7, 110.8) 574 km 5.6 MB
66.8519 80.3 deg 249.224 deg Jujuy Province, Argentina 1997/07/20 10:14:22 GMT (-23.0, -66.3) 256 km 5.7 MB, 6.1 UNKNOWN, 5.7 ME
66.83691 48.6 deg 123.727 deg Mid-Indian Ridge 1997/08/20 13:51:16 GMT (-41.7, 80.1) 10 km 5.6 MB, 6.4 MS, 6.5 UNKNOWN, 6.4 MW
65.938225 81.2 deg 244.173 deg Northern Chile 1997/05/17 02:10:18 GMT (-27.2, -69.5) 106 km 5.5 MB, 5.6 UNKNOWN, 5.5 MW
61.41368 45.1 deg 296.484 deg North Of Ascension Island 1998/04/10 16:40:38 GMT (-1.3, -15.7) 10 km 5.9 MS, 5.4 MB, 6.2 UNKNOWN, 6.1 MW
59.797173 82.3 deg 248.921 deg Northern Chile 1997/09/28 23:13:13 GMT (-22.4, -68.4) 107 km 5.7 MB, 5.6 UNKNOWN, 5.6 MW
57.934475 35.4 deg 244.713 deg Southern Mid-Atlantic Ridge 1998/01/03 06:10:08 GMT (-35.5, -16.2) 10 km 5.9 MS, 5.4 MB, 6.3 UNKNOWN, 6.1 MW
54.606384 43.7 deg 80.334 deg Mid-Indian Ridge 1998/04/09 23:26:52 GMT (-12.2, 67.8) 10 km 5.5 MB, 5.4 MS, 5.9 UNKNOWN, 5.9 MW
43.045437 83.2 deg 250.93 deg Chile-Bolivia Border Region 1997/12/09 14:23:45 GMT (-20.2, -68.4) 133 km 5.7 MB, 5.7 UNKNOWN, 5.7 MW