Station US CEH - Chapel Hill, North Carolina, USA

Network: US - United States National Seismic Network

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
CEH Chapel Hill, North Carolina, USA (35.89, -79.09) 1991-03-29 / 2001-02-26 152 m
Crust2 Type:DG,thin Platform 1 km seds.
Thickness Estimate:38 km
Thickness StdDev:6.2 km
Vp/Vs Estimate:1.75
Vp/Vs StdDev:0.08
Vs Estimate:3.762 km/s
Poisson's Ratio:0.26
Peak Value:0.01
Assumed Vp:6.565 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.626
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

7 with match > 90% ( 63.636364 %) and 7 with match > 80% ( 63.636364 %) out of 11.

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Azimuth Distribution of Events:

Prior Results for this Station

Study Thickness Vp/Vs Vp Vs Poissons Ratio Extra
EARS 38 km 1.75 6.565 km/s 3.762 km/s 0.26
Crust2.0 31 km 1.78 6.565 km/s 3.684 km/s 0.27 DG,thin Platform 1 km seds.
Zandt Ammon 33 km 1.74 6.0 km/s 3.448 km/s 0.25
Zandt Ammon 34 km 1.73 6.25 km/s 3.613 km/s 0.25
Zandt Ammon 36 km 1.72 6.5 km/s 3.779 km/s 0.24
Zandt Ammon 37 km 1.71 6.75 km/s 3.947 km/s 0.24
Global Maxima 38 km 1.75 6.565 km/s 3.762 km/s 0.26 amp=0.0055515645
Local Maxima 1 34 km 1.81 6.565 km/s 3.632 km/s 0.28 amp=0.0039962325
Local Maxima 2 29 km 1.99 6.565 km/s 3.299 km/s 0.33 amp=0.0026050229
Local Maxima 3 42 km 1.67 6.565 km/s 3.937 km/s 0.22 amp=0.0023912047
Local Maxima 4 69 km 1.87 6.565 km/s 3.506 km/s 0.30 amp=0.0022221415
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps4.26 SECOND
PpPs15.68 SECOND
PsPs/PpSs19.94 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
99.1072 56.6 deg 168.282 deg Chile-Bolivia Border Region 2001/02/24 17:58:37 GMT (-20.2, -68.7) 116 km 5.3 MB, 5.8 MW
98.36719 67.2 deg 317.779 deg Andreanof Islands, Aleutian Is. 1996/06/10 15:24:56 GMT (51.5, -176.8) 26 km 5.9 MB, 7.1 MS, 7.2 UNKNOWN, 6.9 MS
97.71425 64.5 deg 111.475 deg Central Mid-Atlantic Ridge 1995/05/18 00:06:26 GMT (-0.9, -22.0) 10 km 6.2 MB, 6.1 MS, 6.8 UNKNOWN, 6.7 MW
97.13644 51.6 deg 169.37 deg Southern Peru 2001/02/16 13:19:45 GMT (-15.3, -70.5) 210 km 5.1 MB, 5.5 MW
97.12583 80.6 deg 180.137 deg Off Coast Of Southern Chile 2001/02/19 14:31:55 GMT (-45.1, -79.3) 10 km 5.1 MB, 5.2 MS, 5.8 MW
96.725685 47.1 deg 173.864 deg Central Peru 2001/02/21 15:20:21 GMT (-11.3, -74.5) 33 km 5.5 MB, 5.2 MS, 5.8 MW, 5.8 MW
91.527725 38.5 deg 178.082 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

Losers

(4 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
75.2043 83.2 deg 327.601 deg Kuril Islands 1995/06/29 07:45:09 GMT (48.8, 154.5) 62 km 5.9 MB, 6.0 UNKNOWN, 6.0 MW
72.710175 38.5 deg 177.989 deg Peru-Ecuador Border Region 1995/10/07 21:28:06 GMT (-2.8, -77.8) 33 km 5.8 MB, 5.2 MS, 5.8 UNKNOWN
69.37239 38.3 deg 177.902 deg Peru-Ecuador Border Region 1995/10/03 01:57:03 GMT (-2.6, -77.8) 33 km 5.6 MB
40.536385 92.2 deg 330.014 deg Hokkaido, Japan Region 1999/05/12 17:59:22 GMT (43.0, 143.8) 103 km 5.9 MB, 6.2 MW, 6.1 MW