Station CI GPO - Geothermal Program Office, California, USA

Network: CI - Caltech Regional Seismic Network

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
GPO Geothermal Program Office, California, USA (35.65, -117.66) 1996-01-12 / 2499-01-01 735 m
Crust2 Type:M5,extended crust, 0.5 km seds.
Thickness Estimate:30 km
Thickness StdDev:9.7 km
Vp/Vs Estimate:1.78
Vp/Vs StdDev:0.13
Vs Estimate:3.521 km/s
Poisson's Ratio:0.27
Peak Value:0.07
Assumed Vp:6.276 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.753
Nearby stations H:30 km +- 0.7 km
(2.0 deg) Vp/Vs:1.80 +- 0.03

0 with match > 90% ( 0.0 %) and 6 with match > 80% ( 30.0 %) out of 20.

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Azimuth Distribution of Events:

Prior Results for this Station

Study Thickness Vp/Vs Vp Vs Poissons Ratio Extra
EARS 30 km 1.78 6.276 km/s 3.521 km/s 0.27
Crust2.0 31 km 1.78 6.276 km/s 3.529 km/s 0.27 M5,extended crust, 0.5 km seds.
Zhu S. Cal. 30 km 1.85 6.3 km/s 3.405 km/s 0.29
Global Maxima 30 km 1.78 6.276 km/s 3.521 km/s 0.27 amp=0.070701435
Local Maxima 1 45 km 1.62 6.276 km/s 3.886 km/s 0.19 amp=0.066200085
Local Maxima 2 58 km 1.71 6.276 km/s 3.665 km/s 0.24 amp=0.06041327
Local Maxima 3 37 km 2.10 6.276 km/s 2.992 km/s 0.35 amp=0.054775767
Local Maxima 4 38 km 1.60 6.276 km/s 3.922 km/s 0.18 amp=0.044837173
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps3.68 SECOND
PpPs13.08 SECOND
PsPs/PpSs16.76 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

(6 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
89.73311 56.4 deg 316.831 deg Near East Coast Of Kamchatka 1997/12/05 11:26:54 GMT (54.8, 162.0) 33 km 6.3 MB, 7.6 MS, 7.9 UNKNOWN, 7.3 ME
89.23797 86.9 deg 249.063 deg Vanuatu Islands 1997/11/15 18:59:24 GMT (-15.1, 167.4) 123 km 6.4 MB, 7.0 UNKNOWN, 6.8 ME
89.05002 50.0 deg 119.463 deg Colombia 1997/09/02 12:13:22 GMT (3.8, -75.7) 199 km 6.5 MB, 6.8 UNKNOWN, 6.4 ME
84.97737 56.0 deg 316.463 deg Near East Coast Of Kamchatka 1997/12/07 17:56:18 GMT (54.7, 162.9) 33 km 5.6 MB, 6.0 MS, 6.3 UNKNOWN, 6.1 MW
82.06157 77.6 deg 240.186 deg Fiji Islands Region 1998/01/12 16:36:20 GMT (-15.8, -179.4) 23 km 5.8 MB, 6.7 MS, 6.9 UNKNOWN, 6.7 MW
80.2827 49.9 deg 119.424 deg Colombia 1997/12/11 07:56:28 GMT (3.9, -75.8) 178 km 6.0 MB, 6.4 UNKNOWN, 6.3 MW

Losers

(14 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
80.2581 87.3 deg 228.78 deg Kermadec Islands, New Zealand 1997/10/27 09:32:59 GMT (-30.8, -178.5) 33 km 5.5 MB, 5.4 MS
72.74981 67.4 deg 127.569 deg Peru-Bolivia Border Region 1997/11/28 22:53:41 GMT (-13.7, -68.8) 586 km 6.4 MB, 6.6 UNKNOWN, 6.6 MW
68.0976 57.0 deg 315.851 deg Off East Coast Of Kamchatka 1997/12/05 11:35:19 GMT (53.9, 161.6) 33 km 5.7 MB
65.9656 79.6 deg 301.814 deg Southeast Of Honshu, Japan 1997/09/30 06:27:24 GMT (32.0, 141.9) 10 km 5.5 MB, 6.5 MS, 6.1 UNKNOWN, 6.0 MW
64.99877 77.5 deg 240.2 deg Fiji Islands Region 1998/01/14 19:56:12 GMT (-15.8, -179.3) 33 km 5.3 MB, 5.7 MS
62.551517 96.8 deg 268.128 deg Eastern New Guinea Reg., P.N.G. 1997/12/22 02:05:50 GMT (-5.5, 147.9) 179 km 6.3 MB, 6.7 MS, 7.1 UNKNOWN, 7.0 ME
58.27353 31.3 deg 126.767 deg Near Coast Of Chiapas, Mexico 1997/12/25 22:16:19 GMT (14.1, -92.3) 10 km 5.4 MB, 5.3 MS, 5.8 UNKNOWN, 5.5 MD
56.998795 86.5 deg 233.755 deg South Of Fiji Islands 1997/09/04 04:23:37 GMT (-26.6, 178.3) 625 km 6.3 MB, 6.8 UNKNOWN, 6.5 ME
48.8751 79.1 deg 140.659 deg Near Coast Of Central Chile 1997/11/03 20:12:52 GMT (-30.8, -71.3) 45 km 5.6 MB, 5.2 MD
44.878975 85.6 deg 229.496 deg Kermadec Islands, New Zealand 1997/11/18 15:41:29 GMT (-29.1, -177.7) 52 km 5.7 MB, 5.5 MS
44.163616 81.1 deg 236.247 deg Fiji Islands Region 1997/11/04 10:40:43 GMT (-21.0, -179.2) 621 km 5.7 UNKNOWN, 5.1 MB
35.84039 72.1 deg 308.976 deg Hokkaido, Japan Region 1997/10/08 21:20:59 GMT (41.9, 144.8) 33 km 5.5 MB, 5.6 MS, 5.9 UNKNOWN, 5.9 MW
30.404078 74.3 deg 237.886 deg Tonga Islands 1997/08/04 18:53:58 GMT (-15.2, -175.3) 33 km 5.5 MB, 6.0 MS, 6.1 UNKNOWN, 6.0 MW
25.074955 95.5 deg 266.528 deg New Britain Region, P.N.G. 1997/12/15 10:28:06 GMT (-6.0, 149.9) 33 km 5.8 MS, 5.3 MB, 5.9 UNKNOWN, 5.9 MW