Station XL S224 - Twin Wash

Network: XL97 - Deep Probe (Archean-Proterozoic)

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
S224 Twin Wash (40.22, -108.98) 1997-08-19 / 1997-12-31 1819 m
Crust2 Type:Q4,orogen/43km no ice, Tethian Belt, 5 km seds.
Thickness Estimate:29 km
Thickness StdDev:10 km
Vp/Vs Estimate:2.10
Vp/Vs StdDev:0.17
Vs Estimate:2.959 km/s
Poisson's Ratio:0.35
Peak Value:0.05
Assumed Vp:6.207 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.805
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

2 with match > 90% ( 20.0 %) and 3 with match > 80% ( 30.0 %) out of 10.

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Azimuth Distribution of Events:

Prior Results for this Station

Study Thickness Vp/Vs Vp Vs Poissons Ratio Extra
EARS 29 km 2.10 6.207 km/s 2.959 km/s 0.35
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 29 km 2.10 6.207 km/s 2.959 km/s 0.35 amp=0.04524928
Local Maxima 1 36 km 2.10 6.207 km/s 2.959 km/s 0.35 amp=0.042229712
Local Maxima 2 32 km 1.83 6.207 km/s 3.392 km/s 0.29 amp=0.034520887
Local Maxima 3 48 km 2.10 6.207 km/s 2.959 km/s 0.35 amp=0.03439184
Local Maxima 4 50 km 1.80 6.207 km/s 3.458 km/s 0.27 amp=0.019150296
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps5.13 SECOND
PpPs14.47 SECOND
PsPs/PpSs19.60 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
94.26766 79.0 deg 147.582 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
93.61211 53.4 deg 138.393 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
80.613785 47.0 deg 131.613 deg Colombia 1997/09/02 12:13:22 GMT (3.8, -75.7) 199 km 6.5 MB, 6.8 UNKNOWN, 6.4 ME

Losers

(7 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
80.323044 93.9 deg 256.254 deg Vanuatu Islands 1997/10/31 12:29:49 GMT (-13.1, 166.9) 183 km 5.9 UNKNOWN, 5.4 MB
77.13404 86.3 deg 238.145 deg Tonga Islands 1997/09/10 12:57:07 GMT (-21.3, -174.4) 10 km 5.7 MB, 6.1 MS, 6.1 UNKNOWN, 5.9 MW
76.12867 93.6 deg 235.073 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
70.180336 94.7 deg 239.08 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
45.941788 88.2 deg 240.776 deg Fiji Islands Region 1997/08/25 11:59:00 GMT (-20.8, -177.8) 394 km 5.5 UNKNOWN, 5.3 MB
39.42471 88.9 deg 241.407 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
26.101776 78.6 deg 312.177 deg Eastern Honshu, Japan 1997/10/26 19:06:44 GMT (39.3, 140.5) 134 km 5.6 UNKNOWN, 5.2 MB