Station XB FREI - Base Frei, South Shetland Is.

Network: XB97 - Seismic Experiment in Patagonia and Antarctica

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
FREI Base Frei, South Shetland Is. (-62.19, -58.98) 1997-01-23 / 2000-12-31 37 m
Crust2 Type:S1,continental slope, margin, transition 1 km seds.
Thickness Estimate:27 km
Thickness StdDev:14 km
Vp/Vs Estimate:2.10
Vp/Vs StdDev:0.13
Vs Estimate:2.951 km/s
Poisson's Ratio:0.35
Peak Value:0.06
Assumed Vp:6.183 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.742
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

2 with match > 90% ( 11.764706 %) and 4 with match > 80% ( 23.529411 %) out of 17.

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 27 km 2.10 6.183 km/s 2.951 km/s 0.35
Crust2.0 23 km 1.81 6.183 km/s 3.422 km/s 0.28 S1,continental slope, margin, transition 1 km seds.
Global Maxima 27 km 2.10 6.183 km/s 2.951 km/s 0.35 amp=0.060077347
Local Maxima 1 56 km 2.05 6.183 km/s 3.02 km/s 0.34 amp=0.0407037
Local Maxima 2 30 km 1.60 6.183 km/s 3.864 km/s 0.18 amp=0.029327517
Local Maxima 3 46 km 1.65 6.183 km/s 3.741 km/s 0.21 amp=0.028362148
Local Maxima 4 23 km 2.09 6.183 km/s 2.958 km/s 0.35 amp=0.024976818
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps4.78 SECOND
PpPs13.52 SECOND
PsPs/PpSs18.30 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

(4 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
90.60695 59.2 deg 339.333 deg Northern Peru 1997/10/28 06:15:17 GMT (-4.4, -76.7) 112 km 6.6 MB, 6.3 MS, 7.2 UNKNOWN, 6.6 ME
90.45952 32.3 deg 340.055 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
85.697205 77.0 deg 232.306 deg Kermadec Islands Region 1997/09/20 16:11:32 GMT (-28.7, -177.6) 30 km 6.1 MB, 7.0 MS, 7.2 UNKNOWN, 6.7 ME
80.71574 48.9 deg 347.314 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

Losers

(13 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
79.35964 82.7 deg 235.814 deg South Of Fiji Islands 1997/10/14 09:53:18 GMT (-22.1, -176.8) 167 km 6.7 MB, 7.7 UNKNOWN, 7.4 ME
75.39054 79.3 deg 330.557 deg El Salvador 1997/11/09 22:56:42 GMT (13.8, -88.8) 176 km 5.6 MB, 6.4 UNKNOWN, 5.0 MD
75.25818 89.5 deg 314.989 deg Off Coast Of Jalisco, Mexico 1997/05/01 11:37:36 GMT (19.0, -107.3) 33 km 6.1 MB, 6.8 MS, 7.1 UNKNOWN, 7.1 ME
71.91511 80.4 deg 229.858 deg South Of Fiji Islands 1997/09/04 04:23:37 GMT (-26.6, 178.3) 625 km 6.3 MB, 6.8 UNKNOWN, 6.5 ME
70.32485 67.1 deg 341.795 deg Colombia 1997/09/02 12:13:22 GMT (3.8, -75.7) 199 km 6.5 MB, 6.8 UNKNOWN, 6.4 ME
66.03624 45.7 deg 209.526 deg Balleny Islands Region 1997/09/23 17:51:23 GMT (-65.5, 178.8) 10 km 5.9 MS, 5.0 MB
65.87136 94.8 deg 224.531 deg Vanuatu Islands 1997/11/15 18:59:24 GMT (-15.1, 167.4) 123 km 6.4 MB, 7.0 UNKNOWN, 6.8 ME
57.014908 84.6 deg 234.552 deg Fiji Islands Region 1997/10/17 15:02:00 GMT (-20.9, -178.8) 579 km 5.3 MB, 6.0 UNKNOWN, 6.0 MW
54.06791 33.4 deg 340.546 deg Near Coast Of Central Chile 1997/03/09 11:43:43 GMT (-29.8, -71.1) 33 km 5.5 MB, 5.7 MS, 6.2 UNKNOWN, 6.2 MW
53.050312 67.2 deg 341.767 deg Colombia 1997/12/11 07:56:28 GMT (3.9, -75.8) 178 km 6.0 MB, 6.4 UNKNOWN, 6.3 MW
42.36904 44.5 deg 345.634 deg Northern Chile 1997/04/01 18:33:32 GMT (-18.3, -69.5) 114 km 5.9 MB, 6.2 UNKNOWN, 6.1 MW
33.82239 40.3 deg 346.389 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
28.920473 96.7 deg 224.173 deg Vanuatu Islands 1997/04/21 12:15:56 GMT (-13.4, 166.3) 33 km 6.0 MB