Station XA SA07 - XA.SA07

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

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
SA07 XA.SA07 (-31.98, 20.23) 1997-05-07 / 1999-12-31 1277 m
Crust2 Type:I7,late Proter., 1 km seds.
Thickness Estimate:68 km
Thickness StdDev:17 km
Vp/Vs Estimate:1.78
Vp/Vs StdDev:0.11
Vs Estimate:3.715 km/s
Poisson's Ratio:0.27
Peak Value:0.01
Assumed Vp:6.612 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.878
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

3 with match > 90% ( 16.666666 %) and 6 with match > 80% ( 33.333332 %) out of 18.

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Azimuth Distribution of Events:

Prior Results for this Station

Study Thickness Vp/Vs Vp Vs Poissons Ratio Extra
EARS 68 km 1.78 6.612 km/s 3.715 km/s 0.27
Crust2.0 42 km 1.78 6.612 km/s 3.71 km/s 0.27 I7,late Proter., 1 km seds.
Global Maxima 68 km 1.78 6.612 km/s 3.715 km/s 0.27 amp=0.005469144
Local Maxima 1 28 km 1.88 6.612 km/s 3.522 km/s 0.30 amp=0.0042986493
Local Maxima 2 70 km 1.88 6.612 km/s 3.512 km/s 0.30 amp=0.0040354203
Local Maxima 3 49 km 1.67 6.612 km/s 3.959 km/s 0.22 amp=0.003915617
Local Maxima 4 30 km 1.60 6.612 km/s 4.132 km/s 0.18 amp=0.002685249
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps8.05 SECOND
PpPs28.70 SECOND
PsPs/PpSs36.75 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

(6 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
98.38335 77.2 deg 158.671 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
95.39587 75.5 deg 242.555 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
93.839584 78.1 deg 249.278 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
89.42616 75.6 deg 242.427 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
83.829575 47.3 deg 97.877 deg Mid-Indian Ridge 1999/01/24 08:00:08 GMT (-26.5, 74.5) 10 km 6.0 MB, 6.3 MS, 6.3 MW, 6.3 ME
83.39899 37.4 deg 295.158 deg Ascension Island Region 1998/06/18 04:17:54 GMT (-11.6, -13.9) 10 km 6.1 MS, 5.4 MB, 6.2 UNKNOWN

Losers

(12 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
75.24236 74.8 deg 241.277 deg Near Coast Of Central Chile 1998/07/29 07:14:24 GMT (-32.3, -71.3) 51 km 6.3 MB, 6.5 UNKNOWN, 6.5 ME
74.59822 31.3 deg 249.724 deg Southern Mid-Atlantic Ridge 1998/06/24 10:44:30 GMT (-37.3, -17.4) 10 km 5.7 MB, 5.8 MS, 6.0 UNKNOWN, 5.9 MW
72.949905 81.0 deg 153.574 deg West Of Macquarie Island 1998/08/04 15:51:01 GMT (-56.7, 147.4) 10 km 5.5 MS, 5.3 MB
67.1342 81.7 deg 92.098 deg Sunda Strait, Indonesia 1999/02/03 06:35:56 GMT (-6.2, 104.2) 33 km 5.6 MB, 5.6 MS, 5.8 MW, 5.7 MW
67.05752 71.9 deg 235.927 deg S. Chile-Argentina Border Region 1998/12/14 16:25:24 GMT (-38.2, -71.0) 138 km 6.0 UNKNOWN, 4.8 MS, 5.4 MB
64.45651 69.5 deg 34.431 deg Southern Iran 1999/03/04 05:47:49 GMT (28.3, 57.1) 33 km 5.6 MB
63.30669 80.7 deg 78.965 deg Northern Sumatra, Indonesia 1997/08/20 07:15:15 GMT (4.4, 96.5) 33 km 5.9 MB, 6.0 MS, 6.1 UNKNOWN, 6.0 MW
59.91481 40.5 deg 219.802 deg South Sandwich Islands Region 1998/08/29 08:30:21 GMT (-55.7, -27.0) 33 km 5.6 MB, 5.6 MS, 6.0 UNKNOWN, 5.9 MW
59.747547 82.0 deg 258.835 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
56.59729 87.5 deg 95.112 deg Java Sea 1997/07/11 09:55:12 GMT (-5.7, 110.8) 574 km 5.6 MB
55.945366 30.4 deg 253.359 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
55.54983 79.5 deg 78.566 deg Northern Sumatra, Indonesia 1999/02/04 19:28:00 GMT (4.0, 95.3) 56 km 5.8 MB, 5.4 MS, 5.9 MW, 5.9 MW