Station XT TWIN - XT.TWIN

Network: XT97 - Colorado BB Array - Lodore

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
TWIN XT.TWIN (40.76, -108.38) 1997-08-01 / 1998-07-15 1883 m
Crust2 Type:Q4,orogen/43km no ice, Tethian Belt, 5 km seds.
Thickness Estimate:46 km
Thickness StdDev:8.2 km
Vp/Vs Estimate:1.63
Vp/Vs StdDev:0.17
Vs Estimate:3.814 km/s
Poisson's Ratio:0.20
Peak Value:0.04
Assumed Vp:6.207 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.670
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

2 with match > 90% ( 6.25 %) and 5 with match > 80% ( 15.625 %) out of 32.

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 46 km 1.63 6.207 km/s 3.814 km/s 0.20
Crust2.0 43 km 1.76 6.207 km/s 3.535 km/s 0.26 Q4,orogen/43km no ice, Tethian Belt, 5 km seds.
Global Maxima 46 km 1.63 6.207 km/s 3.814 km/s 0.20 amp=0.043474477
Local Maxima 1 27 km 2.10 6.207 km/s 2.959 km/s 0.35 amp=0.032268547
Local Maxima 2 40 km 1.78 6.207 km/s 3.487 km/s 0.27 amp=0.021843186
Local Maxima 3 52 km 1.60 6.207 km/s 3.879 km/s 0.18 amp=0.020398645
Local Maxima 4 69 km 2.05 6.207 km/s 3.028 km/s 0.34 amp=0.011227341
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps4.70 SECOND
PpPs19.68 SECOND
PsPs/PpSs24.39 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

(5 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
93.974304 89.1 deg 239.577 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
92.36965 57.7 deg 316.845 deg Near East Coast Of Kamchatka 1997/12/05 11:26:54 GMT (54.8, 162.0) 33 km 6.3 MB, 7.6 MS, 7.9 UNKNOWN, 7.3 ME
85.28395 53.5 deg 139.297 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
84.89166 79.2 deg 148.097 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
80.574394 30.1 deg 145.848 deg Guatemala 1998/01/10 08:20:05 GMT (14.4, -91.5) 33 km 6.1 MB, 6.2 MS, 6.6 UNKNOWN, 6.6 ME

Losers

(27 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
84.07883 59.7 deg 315.434 deg Off East Coast Of Kamchatka 1998/06/01 05:34:03 GMT (52.9, 160.1) 44 km 6.2 MB, 6.3 MS, 6.5 UNKNOWN, 6.4 MW
82.90019 87.4 deg 244.335 deg Fiji Islands Region 1998/03/29 19:48:16 GMT (-17.6, -179.1) 537 km 6.5 MB, 7.2 UNKNOWN, 7.1 MW
79.47196 94.2 deg 235.471 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
78.501076 86.3 deg 154.973 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
76.61776 96.3 deg 235.014 deg Kermadec Islands, New Zealand 1998/07/09 14:45:39 GMT (-30.5, -179.0) 130 km 6.2 MB, 6.2 MS, 6.9 UNKNOWN, 6.4 ME
74.87894 57.4 deg 316.396 deg Near East Coast Of Kamchatka 1997/12/07 17:56:18 GMT (54.7, 162.9) 33 km 5.6 MB, 6.0 MS, 6.3 UNKNOWN, 6.1 MW
74.144394 49.7 deg 307.964 deg Rat Islands, Aleutian Islands 1997/12/17 04:38:51 GMT (51.2, 178.9) 20 km 5.8 MB, 6.5 MS, 6.7 UNKNOWN, 6.1 ME
73.977684 65.5 deg 137.088 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
73.62874 79.2 deg 148.269 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
73.4205 31.1 deg 145.211 deg Near Coast Of Guatemala 1998/05/10 06:05:58 GMT (13.7, -90.7) 33 km 5.3 MB, 5.9 MS, 6.3 UNKNOWN, 5.3 MD
72.5471 91.0 deg 241.274 deg South Of Fiji Islands 1998/05/16 02:22:03 GMT (-22.2, -179.5) 586 km 6.1 MB, 6.8 UNKNOWN
72.53395 80.0 deg 310.477 deg Near East Coast Of Honshu, Japan 1998/04/09 08:45:40 GMT (36.9, 140.8) 111 km 5.6 UNKNOWN, 5.3 MB, 5.5 MW
70.37191 45.0 deg 176.209 deg Central East Pacific Rise 1997/08/15 07:37:49 GMT (-4.4, -105.7) 10 km 5.3 MB, 5.8 MS, 6.2 UNKNOWN, 6.1 MW
64.882614 58.4 deg 316.009 deg Off East Coast Of Kamchatka 1997/12/05 11:35:19 GMT (53.9, 161.6) 33 km 5.7 MB
62.608643 76.1 deg 319.791 deg Primor'ye, Russia 1997/10/01 06:05:48 GMT (46.2, 136.1) 416 km 5.5 UNKNOWN, 5.2 MB
60.49983 46.9 deg 132.638 deg Colombia 1997/12/11 07:56:28 GMT (3.9, -75.8) 178 km 6.0 MB, 6.4 UNKNOWN, 6.3 MW
59.93601 31.2 deg 144.431 deg Near Coast Of Guatemala 1997/12/22 10:03:45 GMT (13.7, -90.3) 59 km 5.1 MB, 6.1 UNKNOWN, 5.2 MD
56.205124 95.4 deg 239.486 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
54.374035 95.4 deg 234.641 deg Kermadec Islands, New Zealand 1998/06/20 20:24:45 GMT (-30.1, -177.9) 57 km 5.7 MB, 6.0 UNKNOWN, 6.0 MW
52.383007 89.6 deg 241.789 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
51.762177 31.8 deg 141.756 deg El Salvador 1997/12/18 15:02:00 GMT (13.8, -88.7) 182 km 5.3 MB, 6.1 UNKNOWN, 6.0 MW
50.60912 41.9 deg 307.092 deg Fox Islands, Aleutian Islands 1998/01/23 09:20:08 GMT (52.4, -168.6) 33 km 5.8 MB, 5.5 MS, 5.8 UNKNOWN, 5.5 ML
50.26089 73.0 deg 141.595 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
49.87803 65.5 deg 140.859 deg Southern Peru 1998/04/12 23:49:35 GMT (-15.5, -71.8) 33 km 5.6 MB, 5.4 MS, 6.1 UNKNOWN, 5.6 MW
49.38098 84.0 deg 309.569 deg Southeast Of Honshu, Japan 1998/02/28 17:38:48 GMT (33.5, 138.1) 291 km 5.7 UNKNOWN, 5.3 MB, 5.7 MW
44.70186 81.1 deg 145.806 deg San Juan Province, Argentina 1998/06/07 16:10:46 GMT (-31.5, -67.8) 113 km 5.6 MB, 5.9 UNKNOWN, 5.9 MW
43.21139 88.8 deg 241.155 deg Fiji Islands Region 1997/08/25 11:59:00 GMT (-20.8, -177.8) 394 km 5.5 UNKNOWN, 5.3 MB