Station XA SA139 - XA.SA139
Network: XA97 - Anatomy of an Archean Craton, South Africa
Nearby stations (2 deg radius)
| Station | Name | (Lat, Lon) | Start / End | Elevation |
| SA139 | XA.SA139 | (-25.85, 26.27) | 1998-02-19 / 1999-12-31 | 1600 m |
| Crust2 Type: | G1,Archean, no seds. |
| Thickness Estimate: | 41 km |
| Thickness StdDev: | 0.7 km |
| Vp/Vs Estimate: | 1.73 |
| Vp/Vs StdDev: | 0.01 |
| Vs Estimate: | 3.728 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: | 0.389 |
| Nearby stations H: | +- |
| (2.0 deg) Vp/Vs: | +- |
3 with match > 90% ( 15.0 %) and 7 with match > 80% ( 35.0 %) out of 20.
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 | 41 km | 1.73 | 6.459 km/s | 3.728 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 | 41 km | 1.73 | 6.459 km/s | 3.728 km/s | 0.25 | amp=0.04978815 |
| Local Maxima 1 | 37 km | 1.82 | 6.459 km/s | 3.544 km/s | 0.28 | amp=0.017338067 |
| Local Maxima 2 | 43 km | 1.68 | 6.459 km/s | 3.851 km/s | 0.22 | amp=0.01049357 |
| Local Maxima 3 | 52 km | 1.60 | 6.459 km/s | 4.037 km/s | 0.18 | amp=0.009569705 |
| Local Maxima 4 | 38 km | 1.83 | 6.459 km/s | 3.539 km/s | 0.29 | amp=0.008526515 |
| Predicted Arrivals for vertical incidence (zero ray parameter) | |
| Ps | 4.65 SECOND |
| PpPs | 17.34 SECOND |
| PsPs/PpSs | 21.99 SECOND |
Events Processed for this Station
Download zip of receiver functions as SAC
Plot maxima for each earthquake.
Events Used in the Stack
(7 events)| Radial Match | Distance | Baz | FERegion | Time | Lat/Lon | Depth | Magnitude |
| 99.08917 | 80.9 deg | 157.159 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 |
| 96.09614 | 81.6 deg | 229.322 deg | Off Coast Of Southern Chile | 1998/04/01 22:42:56 GMT | (-40.3, -74.9) | 9.0 km | 6.2 MB, 6.0 MS, 6.7 UNKNOWN, 6.6 ME |
| 94.35024 | 75.7 deg | 45.449 deg | Western Xizang-India Border Reg. | 1999/03/28 19:05:11 GMT | (30.5, 79.4) | 15 km | 6.4 MB, 6.6 MS, 6.6 MW, 6.5 ME |
| 89.43315 | 84.1 deg | 240.269 deg | Near Coast Of Central Chile | 1998/09/03 17:37:58 GMT | (-29.5, -71.7) | 27 km | 6.2 MB, 6.6 MS, 6.5 UNKNOWN, 6.4 ME |
| 88.9901 | 43.1 deg | 101.856 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 |
| 82.740074 | 40.4 deg | 282.939 deg | Ascension Island Region | 1998/06/18 04:17:54 GMT | (-11.6, -13.9) | 10 km | 6.1 MS, 5.4 MB, 6.2 UNKNOWN |
| 82.54617 | 38.6 deg | 241.942 deg | Southern Mid-Atlantic Ridge | 1998/06/24 10:44:30 GMT | (-37.3, -17.4) | 10 km | 5.7 MB, 5.8 MS, 6.0 UNKNOWN, 5.9 MW |
Losers
(13 events)| Radial Match | Distance | Baz | FERegion | Time | Lat/Lon | Depth | Magnitude | Reason |
| 99.799576 | 65.6 deg | 350.503 deg | Southern Italy | 1998/05/18 17:19:04 GMT | (39.3, 15.1) | 280 km | 5.6 MB | |
| 71.734535 | 79.8 deg | 232.548 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 | |
| 71.23604 | 83.0 deg | 95.709 deg | Java, Indonesia | 1998/09/28 13:34:30 GMT | (-8.2, 112.4) | 152 km | 6.4 MB, 6.5 UNKNOWN, 6.5 MW | |
| 70.64002 | 67.5 deg | 18.689 deg | Armenia-Azerbaijan-Iran Bord Reg | 1998/07/09 14:19:18 GMT | (38.7, 48.5) | 26 km | 5.9 MB, 6.0 UNKNOWN, 5.7 ME | |
| 65.9246 | 41.4 deg | 78.904 deg | Mid-Indian Ridge | 1998/04/09 23:26:52 GMT | (-12.2, 67.8) | 10 km | 5.5 MB, 5.4 MS, 5.9 UNKNOWN, 5.9 MW | |
| 61.239273 | 62.3 deg | 80.422 deg | South Indian Ocean | 1999/03/29 06:17:58 GMT | (-4.0, 87.3) | 10 km | 5.5 MS, 5.4 MB, 5.8 MW, 5.8 MW | |
| 54.870483 | 82.2 deg | 319.716 deg | Azores Islands, Portugal | 1998/07/09 05:19:07 GMT | (38.7, -28.6) | 10 km | 5.7 MB, 6.0 MS, 6.6 UNKNOWN, 6.2 MW | |
| 53.136784 | 96.1 deg | 94.44 deg | Sulawesi, Indonesia | 1998/12/26 15:39:07 GMT | (-1.4, 123.6) | 33 km | 5.6 MS, 5.4 MB, 6.1 UNKNOWN, 6.0 MW | |
| 53.121994 | 81.1 deg | 238.722 deg | Mendoza Province, Argentina | 1998/11/27 10:27:02 GMT | (-32.1, -69.3) | 127 km | 5.2 MB, 5.5 UNKNOWN, 5.3 MD | |
| 52.78892 | 73.0 deg | 76.834 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 | |
| 52.634758 | 84.4 deg | 247.599 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 | |
| 51.808094 | 47.1 deg | 294.329 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 | |
| 49.410072 | 71.2 deg | 15.76 deg | Eastern Caucasus | 1999/01/31 05:07:13 GMT | (43.2, 46.8) | 33 km | 5.8 MW, 5.4 MS, 5.3 MB, 5.7 MW |
