Station XA SA55 - XA.SA55

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

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
SA55 XA.SA55 (-22.98, 28.30) 1997-04-26 / 1999-12-31 918 m
Crust2 Type:G1,Archean, no seds.
Thickness Estimate:42 km
Thickness StdDev:1.0 km
Vp/Vs Estimate:1.73
Vp/Vs StdDev:0.02
Vs Estimate:3.734 km/s
Poisson's Ratio:0.25
Peak Value:0.05
Assumed Vp:6.459 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.413
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

5 with match > 90% ( 23.809525 %) and 8 with match > 80% ( 38.095238 %) out of 21.

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 42 km 1.73 6.459 km/s 3.734 km/s 0.25
Crust2.0 37 km 1.76 6.459 km/s 3.665 km/s 0.26 G1,Archean, no seds.
Global Maxima 42 km 1.73 6.459 km/s 3.734 km/s 0.25 amp=0.04736298
Local Maxima 1 45 km 1.68 6.459 km/s 3.845 km/s 0.23 amp=0.024592359
Local Maxima 2 40 km 1.78 6.459 km/s 3.624 km/s 0.27 amp=0.021663291
Local Maxima 3 54 km 1.60 6.459 km/s 4.037 km/s 0.18 amp=0.007391723
Local Maxima 4 38 km 1.97 6.459 km/s 3.283 km/s 0.33 amp=0.005379788
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps4.80 SECOND
PpPs17.96 SECOND
PsPs/PpSs22.77 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
95.42703 80.4 deg 45.506 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
94.69636 86.3 deg 238.032 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
94.341736 88.2 deg 244.898 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
93.313614 71.5 deg 35.191 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
92.27011 59.9 deg 29.355 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
84.891335 54.2 deg 211.796 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
83.1883 94.4 deg 90.509 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
83.09419 37.1 deg 82.412 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

Losers

(13 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
92.89149 91.1 deg 254.687 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
79.375755 50.3 deg 290.132 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
76.81401 47.8 deg 290.418 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
75.22377 68.0 deg 51.238 deg Southern India 1997/05/21 22:51:28 GMT (23.1, 80.0) 36 km 6.0 MB, 5.6 MS, 5.8 UNKNOWN, 5.6 ME
75.023766 87.3 deg 246.926 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
74.80493 98.2 deg 98.356 deg Banda Sea 1998/02/19 14:14:51 GMT (-4.5, 129.1) 33 km 6.1 MB, 6.4 MS, 6.5 UNKNOWN, 6.5 MW
74.105606 79.9 deg 319.134 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
73.28337 91.3 deg 90.31 deg Minahassa Peninsula, Sulawesi 1998/05/21 05:34:25 GMT (0.2, 119.6) 33 km 6.2 MB, 6.3 MS, 6.6 UNKNOWN, 6.6 MW
72.891594 87.2 deg 239.48 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
71.52399 40.5 deg 241.822 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
66.75552 85.3 deg 247.183 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
65.791046 80.9 deg 92.347 deg Java Sea 1997/07/11 09:55:12 GMT (-5.7, 110.8) 574 km 5.6 MB
53.607426 71.4 deg 80.631 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