Station N4 Z56A - Williston, SC, USA

Network: N4 - Central and EAstern US Network

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
Z56A Williston, SC, USA (33.33, -81.37) 2015-01-20 / 2015-03-06 81 m
Crust2 Type:DG,thin Platform 1 km seds.
Thickness Estimate:25 km
Thickness StdDev:8.3 km
Vp/Vs Estimate:2.04
Vp/Vs StdDev:0.20
Vs Estimate:3.226 km/s
Poisson's Ratio:0.34
Peak Value:0.28
Assumed Vp:6.565 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.869
Nearby stations H:30 km +- 7.1 km
(2.0 deg) Vp/Vs:1.90 +- 0.19

3 with match > 90% ( 42.857143 %) and 3 with match > 80% ( 42.857143 %) out of 7.

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Azimuth Distribution of Events:

Prior Results for this Station

Study Thickness Vp/Vs Vp Vs Poissons Ratio Extra
EARS 25 km 2.04 6.565 km/s 3.226 km/s 0.34
Crust2.0 31 km 1.78 6.565 km/s 3.684 km/s 0.27 DG,thin Platform 1 km seds.
Global Maxima 25 km 2.04 6.565 km/s 3.226 km/s 0.34 amp=0.28246403
Local Maxima 1 36 km 1.72 6.565 km/s 3.817 km/s 0.24 amp=0.26758698
Local Maxima 2 48 km 1.79 6.565 km/s 3.672 km/s 0.27 amp=0.18905334
Local Maxima 3 36 km 2.03 6.565 km/s 3.23 km/s 0.34 amp=0.16599983
Local Maxima 4 26 km 1.60 6.565 km/s 4.103 km/s 0.18 amp=0.14351806
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps3.94 SECOND
PpPs11.56 SECOND
PsPs/PpSs15.50 SECOND

Events Processed for this Station

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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
97.76884 40.2 deg 46.197 deg Northern Mid-Atlantic Ridge 2015/02/13 18:58:05 GMT (52.5, -31.7) 12 km 4.9 mb
96.0427 57.8 deg 164.003 deg Jujuy Province, Argentina 2015/02/11 18:57:22 GMT (-23.1, -66.7) 223 km 6.7 MWW, 6.7 MWC, 6.7 MWB, 6.9 MI
95.035934 40.1 deg 46.01 deg Northern Mid-Atlantic Ridge 2015/02/13 18:59:12 GMT (52.6, -31.9) 16 km 7.1 MWW, 6.8 MI, 7.0 MWB, 7.0 MWC, 7.1 MWC

Losers

(4 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
66.75544 67.1 deg 166.925 deg Mendoza Province, Argentina 2015/02/02 10:49:48 GMT (-32.7, -67.1) 172 km 6.3 MO
64.954056 30.8 deg 170.468 deg Colombia 2015/02/22 12:56:24 GMT (2.7, -76.5) 151 km 5.6 MB
55.292 56.2 deg 168.282 deg Near Coast Of Northern Chile 2015/02/02 15:22:08 GMT (-22.3, -70.9) 14 km 5.3 MW
45.17282 40.1 deg 45.882 deg Northern Mid-Atlantic Ridge 2015/02/13 19:47:42 GMT (52.7, -31.9) 13 km 4.8 mb