Station XK S21 - South 21

Network: XK99 - CDROM (Colorado)

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
S21 South 21 (35.42, -105.20) 1999-04-18 / 2000-12-31 1991 m
Crust2 Type:Q2,orogen/39km no ice, Appalachians, North Andes, 0.5 km seds.
Thickness Estimate:44 km
Thickness StdDev:1.6 km
Vp/Vs Estimate:1.79
Vp/Vs StdDev:0.03
Vs Estimate:3.586 km/s
Poisson's Ratio:0.27
Peak Value:0.03
Assumed Vp:6.419 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.413
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

4 with match > 90% ( 25.0 %) and 16 with match > 80% ( 100.0 %) out of 16.

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 44 km 1.79 6.419 km/s 3.586 km/s 0.27
Crust2.0 39 km 1.75 6.419 km/s 3.659 km/s 0.26 Q2,orogen/39km no ice, Appalachians, North Andes, 0.5 km seds.
Global Maxima 44 km 1.79 6.419 km/s 3.586 km/s 0.27 amp=0.032776557
Local Maxima 1 41 km 1.92 6.419 km/s 3.343 km/s 0.31 amp=0.011064141
Local Maxima 2 30 km 1.63 6.419 km/s 3.944 km/s 0.20 amp=0.009791659
Local Maxima 3 47 km 1.72 6.419 km/s 3.732 km/s 0.24 amp=0.007872316
Local Maxima 4 25 km 1.70 6.419 km/s 3.787 km/s 0.23 amp=0.006657463
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps5.48 SECOND
PpPs19.34 SECOND
PsPs/PpSs24.82 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

(16 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
98.03267 93.1 deg 300.095 deg Volcano Islands, Japan Region 2000/03/28 11:00:22 GMT (22.3, 143.7) 126 km 6.8 MB, 7.6 MS, 7.6 MW, 7.6 MW
97.301704 83.5 deg 244.114 deg Tonga Islands 2000/01/08 16:47:20 GMT (-16.9, -174.2) 183 km 6.5 MB, 6.6 MS, 7.2 MW, 7.0 ME
94.01447 39.3 deg 319.668 deg Kodiak Island Region, Alaska 1999/12/06 23:12:33 GMT (57.4, -154.5) 66 km 6.8 MB, 7.0 MW, 7.0 ML
90.0234 35.5 deg 130.348 deg Panama 2000/02/26 18:24:39 GMT (9.4, -78.5) 65 km 5.8 MB, 5.4 MS, 6.2 MW, 6.1 MW
87.636116 93.7 deg 32.53 deg Turkey 1999/08/17 00:01:39 GMT (40.7, 29.9) 17 km 6.3 MB, 7.8 MS, 7.7 ME, 7.6 MW
87.61197 39.3 deg 319.584 deg Kodiak Island Region, Alaska 1999/12/07 00:19:49 GMT (57.4, -154.5) 41 km 6.5 MB, 6.1 MS, 6.4 MW, 6.3 ML
87.38725 66.6 deg 141.24 deg Southern Bolivia 1999/09/15 03:01:24 GMT (-20.9, -67.3) 218 km 6.0 MB, 6.4 MW, 6.4 MW
86.41248 63.9 deg 141.688 deg Northern Chile 1999/11/30 04:01:53 GMT (-18.9, -69.2) 128 km 6.2 MB, 6.6 MW, 6.5 MW
85.96108 52.0 deg 311.383 deg Andreanof Islands, Aleutian Is. 1999/08/01 12:47:50 GMT (51.5, -176.3) 33 km 5.5 MB, 5.5 MS, 5.8 MW, 5.8 MW
83.68738 74.9 deg 142.143 deg Santiago Del Estero Prov., Arg. 2000/04/23 09:27:23 GMT (-28.3, -63.0) 608 km 6.6 MB, 7.0 MW, 7.0 MW
83.566696 94.1 deg 249.049 deg Vanuatu Islands Region 2000/02/25 01:43:58 GMT (-19.5, 173.8) 33 km 6.1 MB, 7.1 MS, 7.1 MW, 7.0 MW
83.1373 93.3 deg 237.077 deg Kermadec Islands Region 1999/07/19 02:17:03 GMT (-28.6, -177.6) 39 km 6.3 MB, 6.2 MS, 6.4 MW, 6.3 ME
83.057274 86.0 deg 241.164 deg Tonga Islands 2000/01/02 15:16:32 GMT (-20.8, -174.2) 33 km 5.5 MB, 5.8 MS, 5.8 MW, 5.8 MW
82.1178 82.7 deg 244.73 deg Tonga Islands 1999/12/07 21:29:49 GMT (-15.9, -174.0) 138 km 6.2 MB, 6.4 MW, 6.4 MW
81.134254 44.7 deg 138.76 deg Ecuador 1999/08/28 12:40:06 GMT (-1.3, -77.5) 196 km 5.9 MB, 6.3 MW, 6.2 MW
80.83371 67.4 deg 317.485 deg Near East Coast Of Kamchatka 1999/09/18 21:28:33 GMT (51.2, 157.6) 60 km 5.9 MB, 5.6 MS, 6.2 MW, 6.0 MW

Losers

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