Station XG SPR - Springfield, CO

Network: XG92 - Rocky Mountain Front

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
SPR Springfield, CO (37.46, -102.64) 1992-06-20 / 2499-01-01 1327 m
Crust2 Type:P4,orogen/50km, Urals, Tethian Orogen, Rockies 1 km seds.
Thickness Estimate:38 km
Thickness StdDev:0.9 km
Vp/Vs Estimate:1.89
Vp/Vs StdDev:0.04
Vs Estimate:3.332 km/s
Poisson's Ratio:0.31
Peak Value:0.04
Assumed Vp:6.306 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.473
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

4 with match > 90% ( 57.142857 %) and 7 with match > 80% ( 100.0 %) out of 7.

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 38 km 1.89 6.306 km/s 3.332 km/s 0.31
Crust2.0 50 km 1.76 6.306 km/s 3.584 km/s 0.26 P4,orogen/50km, Urals, Tethian Orogen, Rockies 1 km seds.
Global Maxima 38 km 1.89 6.306 km/s 3.332 km/s 0.31 amp=0.041902237
Local Maxima 1 36 km 1.97 6.306 km/s 3.209 km/s 0.33 amp=0.019321151
Local Maxima 2 43 km 1.60 6.306 km/s 3.935 km/s 0.18 amp=0.013560212
Local Maxima 3 41 km 1.81 6.306 km/s 3.479 km/s 0.28 amp=0.010749925
Local Maxima 4 37 km 1.72 6.306 km/s 3.672 km/s 0.24 amp=0.009417015
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps5.45 SECOND
PpPs17.66 SECOND
PsPs/PpSs23.11 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

(7 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
94.23305 92.8 deg 244.056 deg South Of Fiji Islands 1992/07/11 10:44:20 GMT (-22.3, -178.5) 381 km 6.2 MB
93.65547 89.9 deg 91.343 deg North Of Ascension Island 1992/08/28 18:18:45 GMT (-1.0, -13.6) 10 km 6.4 MB, 7.0 MS
92.48662 51.6 deg 309.074 deg Andreanof Islands, Aleutian Is. 1992/08/19 00:57:43 GMT (50.5, -174.8) 33 km 6.1 MB, 5.7 MS, 5.6 ML
91.49392 75.5 deg 315.453 deg Kuril Islands 1992/07/10 09:31:26 GMT (44.7, 149.5) 11 km 6.1 MB, 6.5 MS
89.85408 33.2 deg 320.437 deg Gulf Of Alaska 1992/08/07 18:19:19 GMT (57.6, -143.0) 10 km 6.3 MB, 6.5 MS, 6.5 ML
86.416016 89.9 deg 313.009 deg Southeast Of Honshu, Japan 1992/08/29 19:19:07 GMT (33.2, 138.0) 309 km 6.0 MB
83.661995 82.1 deg 317.683 deg Hokkaido, Japan Region 1992/08/24 06:59:40 GMT (41.9, 140.7) 127 km 6.2 MB

Losers

(0 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason