Station XA SA70 - XA.SA70

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

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
SA70 XA.SA70 (-21.09, 26.34) 1997-05-02 / 1999-12-31 990 m
Crust2 Type:G1,Archean, no seds.
Thickness Estimate:50 km
Thickness StdDev:4.1 km
Vp/Vs Estimate:1.74
Vp/Vs StdDev:0.03
Vs Estimate:3.718 km/s
Poisson's Ratio:0.25
Peak Value:0.01
Assumed Vp:6.459 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.445
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

9 with match > 90% ( 34.615383 %) and 13 with match > 80% ( 50.0 %) out of 26.

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 50 km 1.74 6.459 km/s 3.718 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 50 km 1.74 6.459 km/s 3.718 km/s 0.25 amp=0.012263971
Local Maxima 1 52 km 1.70 6.459 km/s 3.8 km/s 0.24 amp=0.0041414956
Local Maxima 2 64 km 1.60 6.459 km/s 4.037 km/s 0.18 amp=0.0031988632
Local Maxima 3 29 km 2.06 6.459 km/s 3.136 km/s 0.35 amp=0.0025066447
Local Maxima 4 52 km 1.80 6.459 km/s 3.584 km/s 0.28 amp=0.0022494318
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps5.71 SECOND
PpPs21.19 SECOND
PsPs/PpSs26.90 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

(13 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
99.29824 85.2 deg 157.363 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
98.26221 85.6 deg 238.693 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
98.10228 87.3 deg 245.534 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
97.65595 63.2 deg 30.945 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
96.665184 80.4 deg 46.682 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
95.06239 85.7 deg 238.584 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
93.662315 96.2 deg 91.069 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
93.427444 71.0 deg 36.799 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
92.42698 57.3 deg 355.911 deg Southern Greece 1997/10/13 13:39:37 GMT (36.4, 22.1) 24 km 6.2 MB, 6.6 MS, 6.7 UNKNOWN, 6.5 MW
89.74414 38.7 deg 85.793 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
88.36624 71.2 deg 36.835 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
85.31497 54.8 deg 210.72 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
80.458954 91.1 deg 168.899 deg Balleny Islands Region 1997/09/23 17:51:23 GMT (-65.5, 178.8) 10 km 5.9 MS, 5.0 MB

Losers

(13 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
78.282585 58.6 deg 354.714 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
74.69089 86.4 deg 239.292 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
73.04448 39.8 deg 239.548 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
71.69083 68.3 deg 53.013 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
68.60022 82.8 deg 93.335 deg Java Sea 1997/07/11 09:55:12 GMT (-5.7, 110.8) 574 km 5.6 MB
66.323586 86.2 deg 238.871 deg Near Coast Of Central Chile 1997/07/27 05:21:29 GMT (-30.5, -71.9) 33 km 5.6 MB, 5.8 MS, 6.3 UNKNOWN, 6.2 MW
65.93448 86.3 deg 239.028 deg Near Coast Of Central Chile 1997/07/21 23:19:39 GMT (-30.3, -71.9) 33 km 5.2 MB, 5.5 MS, 6.1 UNKNOWN
65.02901 87.1 deg 249.569 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
63.686676 89.8 deg 255.437 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
61.27908 86.5 deg 240.073 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
59.443474 85.5 deg 242.753 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
58.39915 84.3 deg 247.693 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
51.393993 86.4 deg 247.524 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