Station XA SA169 - XA.SA169

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

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
SA169 XA.SA169 (-22.26, 29.21) 1997-11-14 / 1999-12-31 618 m
Crust2 Type:G1,Archean, no seds.
Thickness Estimate:66 km
Thickness StdDev:6.9 km
Vp/Vs Estimate:1.68
Vp/Vs StdDev:0.12
Vs Estimate:3.851 km/s
Poisson's Ratio:0.22
Peak Value:0.01
Assumed Vp:6.459 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.922
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

5 with match > 90% ( 27.777779 %) and 5 with match > 80% ( 27.777779 %) 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 66 km 1.68 6.459 km/s 3.851 km/s 0.22
Crust2.0 37 km 1.76 6.459 km/s 3.665 km/s 0.26 G1,Archean, no seds.
Global Maxima 66 km 1.68 6.459 km/s 3.851 km/s 0.22 amp=0.0057078586
Local Maxima 1 69 km 2.03 6.459 km/s 3.19 km/s 0.34 amp=0.005513229
Local Maxima 2 51 km 1.89 6.459 km/s 3.409 km/s 0.31 amp=0.0050845062
Local Maxima 3 26 km 1.67 6.459 km/s 3.868 km/s 0.22 amp=0.0049135145
Local Maxima 4 57 km 1.72 6.459 km/s 3.761 km/s 0.24 amp=0.004686739
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps6.92 SECOND
PpPs27.36 SECOND
PsPs/PpSs34.28 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

(5 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
94.63991 87.3 deg 237.673 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
93.35045 41.3 deg 105.193 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
93.0601 93.5 deg 90.109 deg Minahassa Peninsula, Sulawesi 1997/11/25 12:14:33 GMT (1.2, 122.5) 24 km 6.1 MB, 6.8 MS, 7.1 UNKNOWN, 6.7 ME
91.77119 70.6 deg 34.787 deg Afghanistan-Tajikistan Bord Reg. 1998/02/20 12:18:06 GMT (36.5, 71.1) 236 km 5.8 MB, 5.7 MS, 6.4 UNKNOWN, 6.3 MW
90.92668 36.9 deg 79.22 deg Mid-Indian Ridge 1998/03/22 01:08:57 GMT (-11.4, 66.2) 10 km 5.4 MB, 6.1 MS, 6.1 UNKNOWN, 6.1 MW

Losers

(13 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
83.66832 77.1 deg 91.027 deg Java, Indonesia 1999/03/07 01:32:27 GMT (-5.8, 107.6) 325 km 5.6 MW, 5.0 MB
78.115395 60.1 deg 352.158 deg Ionian Sea 1997/11/18 13:07:41 GMT (37.6, 20.7) 33 km 5.9 MB, 6.4 MS, 6.7 UNKNOWN, 6.1 ML
77.86242 68.0 deg 35.183 deg Southeastern Afghanistan 1999/02/11 14:08:51 GMT (34.3, 69.4) 33 km 5.8 MS, 5.4 MB, 6.0 MW, 6.0 MW
72.62966 82.1 deg 156.694 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
71.67898 57.1 deg 29.507 deg Southern Iran 1999/03/04 05:38:26 GMT (28.3, 57.2) 33 km 6.2 MB, 6.5 MS, 6.6 MW, 6.4 MW
68.03399 69.6 deg 76.605 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
65.647995 88.3 deg 246.261 deg Northern Chile 1999/03/02 17:45:55 GMT (-22.7, -68.5) 111 km 5.8 MB, 6.1 MW, 5.9 MW
63.853237 53.0 deg 216.071 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
61.454063 70.5 deg 34.721 deg Afghanistan-Tajikistan Bord Reg. 1998/12/11 20:16:24 GMT (36.5, 71.0) 223 km 5.7 UNKNOWN, 5.0 MB, 5.6 MW
55.736214 96.6 deg 91.777 deg Northern Molucca Sea 1998/10/28 16:25:03 GMT (0.8, 126.0) 33 km 6.2 MB, 6.2 MS, 6.6 UNKNOWN, 6.6 MW
54.746384 84.1 deg 231.191 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
52.600468 95.3 deg 92.335 deg Southern Molucca Sea 1998/08/28 12:40:58 GMT (-0.2, 125.0) 66 km 6.2 MB, 6.1 UNKNOWN, 6.1 MW
51.267857 92.1 deg 254.35 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