Station XA SA68 - XA.SA68

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

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
SA68 XA.SA68 (-21.95, 28.19) 1997-04-30 / 1999-12-31 737 m
Crust2 Type:G1,Archean, no seds.
Thickness Estimate:35 km
Thickness StdDev:4.1 km
Vp/Vs Estimate:2.05
Vp/Vs StdDev:0.14
Vs Estimate:3.159 km/s
Poisson's Ratio:0.34
Peak Value:0.01
Assumed Vp:6.459 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.652
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

7 with match > 90% ( 31.818182 %) and 8 with match > 80% ( 36.363636 %) out of 22.

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 2.05 6.459 km/s 3.159 km/s 0.34
Crust2.0 37 km 1.76 6.459 km/s 3.665 km/s 0.26 G1,Archean, no seds.
Global Maxima 35 km 2.05 6.459 km/s 3.159 km/s 0.34 amp=0.012667666
Local Maxima 1 35 km 1.72 6.459 km/s 3.766 km/s 0.24 amp=0.007720175
Local Maxima 2 32 km 2.08 6.459 km/s 3.106 km/s 0.35 amp=0.004969789
Local Maxima 3 40 km 1.84 6.459 km/s 3.511 km/s 0.29 amp=0.004077464
Local Maxima 4 52 km 1.69 6.459 km/s 3.822 km/s 0.23 amp=0.0030507953
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps5.62 SECOND
PpPs16.38 SECOND
PsPs/PpSs22.00 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

(8 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
98.44245 83.7 deg 156.808 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
97.51142 86.6 deg 238.129 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
96.93946 63.1 deg 29.298 deg Northern And Central Iran 1997/05/10 07:57:29 GMT (33.8, 59.8) 10 km 6.4 MB, 7.3 MS, 7.5 UNKNOWN, 7.2 MW
95.897675 79.7 deg 45.689 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
94.20639 70.7 deg 35.464 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
90.405594 86.7 deg 238.017 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
90.09224 94.5 deg 90.471 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
80.59123 87.4 deg 238.704 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

(14 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
94.132385 70.6 deg 35.372 deg Hindu Kush Region, Afghanistan 1997/12/17 05:51:29 GMT (36.4, 70.8) 207 km 5.5 MB, 6.3 UNKNOWN
78.285446 55.0 deg 211.394 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
75.05663 37.1 deg 83.817 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
73.07884 81.1 deg 92.551 deg Java Sea 1997/07/11 09:55:12 GMT (-5.7, 110.8) 574 km 5.6 MB
71.7816 85.6 deg 247.146 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
71.745705 79.0 deg 319.065 deg Azores Islands, Portugal 1997/06/27 04:39:52 GMT (38.3, -26.7) 10 km 5.6 MB, 5.4 MS, 5.9 UNKNOWN, 5.9 MW
66.96791 86.3 deg 152.028 deg West Of Macquarie Island 1997/10/17 09:55:15 GMT (-57.5, 148.0) 10 km 5.2 MB, 5.9 MS, 6.2 UNKNOWN, 6.0 MW
66.49456 47.6 deg 126.981 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
64.214874 86.7 deg 242.184 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
56.63712 43.5 deg 68.623 deg Carlsberg Ridge 1998/01/14 18:53:14 GMT (-2.1, 68.1) 10 km 5.6 MS, 5.3 MB
53.384583 71.4 deg 81.019 deg Northern Sumatra, Indonesia 1997/07/07 11:24:37 GMT (1.1, 97.6) 29 km 5.7 MS, 5.4 MB, 5.9 UNKNOWN, 5.8 MW
52.83681 87.6 deg 239.479 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
52.586628 91.3 deg 254.75 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
45.94251 88.4 deg 248.95 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