Station US GWDE - Greenwood, Delaware, USA

Network: US - United States National Seismic Network

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
GWDE Greenwood, Delaware, USA (38.83, -75.62) 1995-09-07 / 2001-05-11 19 m
Crust2 Type:T7,Margin /shield transition, 3.5 km seds.
Thickness Estimate:46 km
Thickness StdDev:2.8 km
Vp/Vs Estimate:1.68
Vp/Vs StdDev:0.03
Vs Estimate:3.743 km/s
Poisson's Ratio:0.23
Peak Value:0.11
Assumed Vp:6.287 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.547
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

1 with match > 90% ( 20.0 %) and 4 with match > 80% ( 80.0 %) out of 5.

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Azimuth Distribution of Events:

Prior Results for this Station

Study Thickness Vp/Vs Vp Vs Poissons Ratio Extra
EARS 46 km 1.68 6.287 km/s 3.743 km/s 0.23
Crust2.0 32 km 1.79 6.287 km/s 3.506 km/s 0.27 T7,Margin /shield transition, 3.5 km seds.
Global Maxima 46 km 1.68 6.287 km/s 3.743 km/s 0.23 amp=0.105993204
Local Maxima 1 46 km 1.60 6.287 km/s 3.924 km/s 0.18 amp=0.045508187
Local Maxima 2 33 km 1.97 6.287 km/s 3.2 km/s 0.33 amp=0.042287067
Local Maxima 3 54 km 1.60 6.287 km/s 3.93 km/s 0.18 amp=0.03271031
Local Maxima 4 49 km 1.60 6.287 km/s 3.93 km/s 0.18 amp=0.029695041
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps4.92 SECOND
PpPs19.39 SECOND
PsPs/PpSs24.31 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

(4 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
91.06027 79.0 deg 179.331 deg Off Coast Of Southern Chile 1999/08/22 09:35:39 GMT (-40.5, -74.8) 33 km 6.2 MB, 5.8 MS, 6.4 MW, 6.2 MW
89.469246 41.5 deg 183.439 deg Peru-Ecuador Border Region 1995/10/03 12:45:00 GMT (-2.8, -77.9) 33 km 6.0 MB, 6.1 MS, 5.9 UNKNOWN, 6.4 MW
86.25632 40.0 deg 183.008 deg Ecuador 1999/08/28 12:40:06 GMT (-1.3, -77.5) 196 km 5.9 MB, 6.3 MW, 6.2 MW
85.28964 30.6 deg 196.736 deg Costa Rica 1999/08/20 10:02:21 GMT (9.0, -84.2) 20 km 6.1 MB, 6.9 MS, 7.0 MW, 6.1 ML

Losers

(1 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
63.515957 80.4 deg 332.867 deg Sea Of Okhotsk 1996/08/30 21:13:41 GMT (52.3, 151.5) 580 km 5.5 UNKNOWN, 5.1 MB, 5.4 MW