Station XA SA22 - XA.SA22

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

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
SA22 XA.SA22 (-27.97, 22.01) 1997-04-21 / 1999-12-31 1076 m
Crust2 Type:I7,late Proter., 1 km seds.
Thickness Estimate:26 km
Thickness StdDev:8.0 km
Vp/Vs Estimate:2.04
Vp/Vs StdDev:0.16
Vs Estimate:3.249 km/s
Poisson's Ratio:0.34
Peak Value:0.01
Assumed Vp:6.612 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.675
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

3 with match > 90% ( 21.428572 %) and 7 with match > 80% ( 50.0 %) out of 14.

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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 2.04 6.612 km/s 3.249 km/s 0.34
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 2.04 6.612 km/s 3.249 km/s 0.34 amp=0.007668084
Local Maxima 1 34 km 1.78 6.612 km/s 3.72 km/s 0.27 amp=0.0058942856
Local Maxima 2 45 km 1.62 6.612 km/s 4.069 km/s 0.20 amp=0.004162687
Local Maxima 3 30 km 1.60 6.612 km/s 4.132 km/s 0.18 amp=0.0035015957
Local Maxima 4 70 km 1.74 6.612 km/s 3.794 km/s 0.25 amp=0.0023710814
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps4.11 SECOND
PpPs12.05 SECOND
PsPs/PpSs16.16 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
99.932014 47.1 deg 298.872 deg North Of Ascension Island 1998/03/29 07:14:58 GMT (-0.2, -17.9) 10 km 5.5 MB, 5.6 MS, 6.1 UNKNOWN, 6.1 MW
97.86918 78.7 deg 241.028 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
91.49326 78.9 deg 38.307 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
89.45223 81.1 deg 251.895 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
88.7731 46.9 deg 212.709 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
82.09389 32.0 deg 221.863 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
80.08643 79.6 deg 241.575 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

Losers

(7 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
98.95664 87.9 deg 48.228 deg Xizang 1997/11/08 10:02:52 GMT (35.1, 87.3) 33 km 6.2 MB, 7.9 MS, 7.7 UNKNOWN, 7.6 MW
72.27323 95.0 deg 96.941 deg Sulawesi, Indonesia 1997/09/28 01:38:28 GMT (-3.8, 119.7) 33 km 5.6 MB, 5.5 MS, 5.9 UNKNOWN, 5.9 MW
68.26032 43.4 deg 80.317 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
68.13604 79.0 deg 245.144 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
67.79123 86.3 deg 94.448 deg Java Sea 1997/07/11 09:55:12 GMT (-5.7, 110.8) 574 km 5.6 MB
57.35968 85.6 deg 59.002 deg India-Bangladesh Border Region 1997/05/08 02:53:14 GMT (24.9, 92.2) 35 km 5.6 MB, 5.6 MS, 6.0 UNKNOWN, 5.9 MW
52.4741 80.2 deg 249.897 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