Station XA SA29 - XA.SA29

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

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
SA29 XA.SA29 (-26.93, 23.03) 1997-04-23 / 1999-12-31 1120 m
Crust2 Type:I7,late Proter., 1 km seds.
Thickness Estimate:26 km
Thickness StdDev:4.4 km
Vp/Vs Estimate:1.97
Vp/Vs StdDev:0.10
Vs Estimate:3.352 km/s
Poisson's Ratio:0.33
Peak Value:0.03
Assumed Vp:6.612 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.740
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

5 with match > 90% ( 27.777779 %) and 7 with match > 80% ( 38.88889 %) 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 26 km 1.97 6.612 km/s 3.352 km/s 0.33
Crust2.0 42 km 1.78 6.612 km/s 3.71 km/s 0.27 I7,late Proter., 1 km seds.
Global Maxima 26 km 1.97 6.612 km/s 3.352 km/s 0.33 amp=0.03301135
Local Maxima 1 36 km 1.75 6.612 km/s 3.778 km/s 0.26 amp=0.024217274
Local Maxima 2 32 km 2.01 6.612 km/s 3.285 km/s 0.34 amp=0.015805963
Local Maxima 3 32 km 1.80 6.612 km/s 3.678 km/s 0.28 amp=0.013269573
Local Maxima 4 44 km 1.62 6.612 km/s 4.088 km/s 0.19 amp=0.009555854
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps3.90 SECOND
PpPs11.91 SECOND
PsPs/PpSs15.81 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

(7 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
99.17454 81.0 deg 158.093 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
97.787285 80.0 deg 240.472 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
96.67284 82.2 deg 247.249 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
94.39231 78.7 deg 230.57 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
93.65442 80.1 deg 240.354 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
88.97077 65.7 deg 32.632 deg Northern And Central Iran 1998/03/14 19:40:27 GMT (30.2, 57.6) 9.0 km 5.9 MB, 6.9 MS, 6.6 UNKNOWN, 6.3 ME
85.59068 48.3 deg 212.434 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

Losers

(11 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
79.91499 42.4 deg 80.779 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
71.90747 79.9 deg 158.149 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
71.13255 45.0 deg 297.918 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
63.80056 85.5 deg 256.978 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
62.163467 81.4 deg 249.322 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
62.070942 95.9 deg 224.207 deg West Chile Rise 1997/05/11 22:16:13 GMT (-36.4, -97.7) 10 km 5.6 MB, 5.8 MS, 6.5 UNKNOWN, 6.4 MW
61.929657 34.4 deg 245.895 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
61.721516 44.4 deg 79.773 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
60.560436 49.7 deg 68.029 deg Carlsberg Ridge 1998/01/14 18:53:14 GMT (-2.1, 68.1) 10 km 5.6 MS, 5.3 MB
57.54608 79.6 deg 224.784 deg Off Coast Of Southern Chile 1998/01/19 18:23:59 GMT (-45.0, -79.5) 10 km 5.5 MS, 5.4 MB, 6.2 UNKNOWN, 6.2 MW
56.318275 82.3 deg 251.324 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