Station G TRIS - Tristan da Cunha

Network: G - GEOSCOPE

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
TRIS Tristan da Cunha (-37.07, -12.32) 2004-03-03 / 2599-12-31 60 m
Crust2 Type:A0,normal oceanic, 0.07 km seds.
Thickness Estimate:58 km
Thickness StdDev:19 km
Vp/Vs Estimate:1.90
Vp/Vs StdDev:0.13
Vs Estimate:2.226 km/s
Poisson's Ratio:0.31
Peak Value:0.06
Assumed Vp:4.24 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.870
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

2 with match > 90% ( 8.333333 %) and 3 with match > 80% ( 12.5 %) out of 24.

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Azimuth Distribution of Events:

Prior Results for this Station

Study Thickness Vp/Vs Vp Vs Poissons Ratio Extra
EARS 58 km 1.90 4.24 km/s 2.226 km/s 0.31
Crust2.0 12 km 2.19 4.24 km/s 1.94 km/s 0.37 A0,normal oceanic, 0.07 km seds.
Global Maxima 58 km 1.90 4.24 km/s 2.226 km/s 0.31 amp=0.059098694
Local Maxima 1 10 km 1.61 4.24 km/s 2.638 km/s 0.18 amp=0.04822434
Local Maxima 2 20 km 1.85 4.24 km/s 2.295 km/s 0.29 amp=0.04803501
Local Maxima 3 50 km 2.08 4.24 km/s 2.038 km/s 0.35 amp=0.04521178
Local Maxima 4 70 km 1.89 4.24 km/s 2.243 km/s 0.31 amp=0.03921979
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps12.49 SECOND
PpPs40.08 SECOND
PsPs/PpSs52.57 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

(3 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
90.6768 68.6 deg 284.029 deg Peru-Ecuador Border Region 2019/02/22 10:17:22 GMT (-2.2, -77.0) 132 km 7.5 mww
90.264755 58.8 deg 273.443 deg Near Coast Of Peru 2018/01/14 09:18:45 GMT (-15.8, -74.7) 36 km 7.1 mww
88.01508 67.2 deg 304.637 deg Near Coast Of Venezuela 2018/08/21 21:31:46 GMT (10.9, -62.9) 154 km 7.3 Mww

Losers

(21 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
96.54745 46.9 deg 242.082 deg Southern Chile 2016/12/25 14:22:28 GMT (-43.3, -74.5) 15 km 7.7 Mi
90.438446 86.2 deg 295.1 deg North Of Honduras 2018/01/10 02:51:31 GMT (17.5, -83.6) 33 km 7.8 Mi
84.508705 89.8 deg 44.352 deg Iran-Iraq Border Region 2017/11/12 18:18:17 GMT (34.9, 46.0) 19 km 7.3 Mww
82.15241 41.6 deg 115.931 deg Prince Edward Islands Region 2019/01/22 19:01:43 GMT (-43.1, 42.3) 13 km 6.7 Mww
77.79657 58.4 deg 280.533 deg Peru-Brazil Border Region 2018/08/24 09:04:06 GMT (-11.0, -70.8) 609 km 7.1 Mww
67.09593 89.4 deg 287.56 deg Near Coast Of Guatemala 2017/06/22 12:31:04 GMT (13.7, -91.1) 10 km 6.8 Mi
65.34032 48.3 deg 251.029 deg Near Coast Of Central Chile 2016/11/08 04:55:44 GMT (-36.6, -73.6) 17 km 5.9 MO
64.535065 84.1 deg 288.337 deg Off Coast Of Costa Rica 2018/01/16 15:03:54 GMT (10.9, -86.3) 31 km 5.9 Mww
64.38695 46.3 deg 259.272 deg San Juan Province, Argentina 2016/11/20 20:57:43 GMT (-31.6, -68.8) 116 km 6.4 MWP, 6.5 MWB
61.983513 70.7 deg 281.93 deg Near Coast Of Ecuador 2019/02/04 17:45:47 GMT (-2.4, -79.9) 70 km 5.8 Mww
61.1748 46.8 deg 275.952 deg Southern Bolivia 2018/04/02 13:40:34 GMT (-20.7, -63.0) 562 km 6.8 Mww
58.80223 81.8 deg 278.292 deg Galapagos Islands Region 2018/01/09 00:05:54 GMT (1.7, -90.8) 10 km 5.8 Mww
57.604187 60.7 deg 282.663 deg Western Brazil 2019/01/05 19:25:38 GMT (-8.1, -71.6) 575 km 6.8 Mww
55.410263 81.8 deg 288.413 deg Costa Rica 2017/11/13 02:28:23 GMT (9.5, -84.5) 19 km 6.5 mww
53.98777 73.5 deg 212.256 deg Pacific-Antarctic Ridge 2017/03/05 12:22:16 GMT (-55.2, -129.2) 10 km 5.6 Mwb
53.096645 42.3 deg 81.464 deg Mozambique 2016/09/22 20:06:11 GMT (-21.5, 33.3) 10 km 5.5 MB
51.67494 48.4 deg 256.157 deg Off Coast Of Central Chile 2017/04/24 21:46:04 GMT (-33.0, -72.0) 22 km 5.0 mb
51.27332 70.4 deg 213.971 deg Southern East Pacific Rise 2018/09/13 11:38:04 GMT (-55.9, -123.2) 10 km 5.5 Mww
50.319893 66.5 deg 281.223 deg Northern Peru 2016/09/10 10:08:20 GMT (-5.6, -77.0) 114 km 6.0 MB
46.192642 66.1 deg 306.374 deg Windward Islands 2016/12/06 21:42:21 GMT (11.1, -60.9) 35 km 5.9 Mww
40.83315 72.2 deg 283.259 deg Near Coast Of Ecuador 2017/12/03 11:19:06 GMT (-0.5, -80.3) 25 km 6.0 Mww