Station CD LZH - Lanzhou, Gansu Province, China

Network: CD - China Digital Seismograph Network

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
LZH Lanzhou, Gansu Province, China (36.09, 103.84) 1986-05-31 / 2000-09-02 1560 m
Crust2 Type:P4,orogen/50km, Urals, Tethian Orogen, Rockies 1 km seds.
Thickness Estimate:50 km
Thickness StdDev:8.1 km
Vp/Vs Estimate:1.77
Vp/Vs StdDev:0.14
Vs Estimate:3.553 km/s
Poisson's Ratio:0.27
Peak Value:0.01
Assumed Vp:6.306 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.714
Nearby stations H:51 km +- 1.4 km
(2.0 deg) Vp/Vs:1.76 +- 0.01

7 with match > 90% ( 28.0 %) and 19 with match > 80% ( 76.0 %) out of 25.

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 50 km 1.77 6.306 km/s 3.553 km/s 0.27
Crust2.0 50 km 1.76 6.306 km/s 3.584 km/s 0.26 P4,orogen/50km, Urals, Tethian Orogen, Rockies 1 km seds.
Global Maxima 50 km 1.77 6.306 km/s 3.553 km/s 0.27 amp=0.009923357
Local Maxima 1 37 km 2.10 6.306 km/s 3.006 km/s 0.35 amp=0.0073784236
Local Maxima 2 53 km 1.76 6.306 km/s 3.583 km/s 0.26 amp=0.006965541
Local Maxima 3 42 km 1.75 6.306 km/s 3.609 km/s 0.26 amp=0.005368531
Local Maxima 4 28 km 2.10 6.306 km/s 3.006 km/s 0.35 amp=0.0045581404
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps6.21 SECOND
PpPs22.22 SECOND
PsPs/PpSs28.43 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

(19 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
97.55509 47.5 deg 155.443 deg Flores Region, Indonesia 1992/12/12 05:29:27 GMT (-8.5, 121.9) 35 km 6.7 MB, 7.5 MS, 7.5 UNKNOWN
95.95492 46.8 deg 144.303 deg Banda Sea 1998/02/19 14:14:51 GMT (-4.5, 129.1) 33 km 6.1 MB, 6.4 MS, 6.5 UNKNOWN, 6.5 MW
95.165474 85.9 deg 121.234 deg Southeast Of Loyalty Islands 1998/01/04 06:11:58 GMT (-22.3, 170.9) 101 km 6.4 MB, 7.4 UNKNOWN, 7.3 ME
93.63953 47.2 deg 133.738 deg Irian Jaya Region, Indonesia 1996/02/18 00:22:23 GMT (-0.7, 135.9) 33 km 5.7 MS, 5.2 MB
91.48011 40.4 deg 144.271 deg Northern Molucca Sea 1995/01/20 15:49:01 GMT (1.1, 126.1) 51 km 5.7 MB, 5.4 MS, 6.0 UNKNOWN, 6.0 MW
91.24155 31.3 deg 85.316 deg Southeast Of Honshu, Japan 1992/08/11 15:14:56 GMT (32.5, 141.7) 28 km 5.8 MB, 6.2 MS
91.15738 43.5 deg 103.867 deg Mariana Islands Region 1998/08/30 01:48:08 GMT (17.1, 148.1) 33 km 6.0 MB, 6.1 MS, 6.2 UNKNOWN, 5.9 ME
89.927185 39.4 deg 139.075 deg North Of Halmahera, Indonesia 1993/06/04 10:49:34 GMT (3.7, 128.5) 28 km 5.8 MB, 5.8 MS, 5.8 UNKNOWN
88.51433 31.5 deg 135.253 deg Samar, Philippines 1995/05/08 18:08:09 GMT (11.6, 125.9) 33 km 5.6 MB, 6.2 MS, 6.3 UNKNOWN, 6.3 MW
88.344666 61.0 deg 44.646 deg Fox Islands, Aleutian Islands 1996/03/30 13:05:17 GMT (52.2, -168.7) 33 km 5.9 MB, 6.2 MS, 6.3 UNKNOWN, 6.1 ML
86.897255 30.4 deg 70.322 deg Near East Coast Of Honshu, Japan 1995/01/07 02:36:08 GMT (40.3, 142.4) 48 km 6.2 MB, 5.6 MS
86.63824 47.8 deg 158.942 deg Sumba Region, Indonesia 1997/02/10 19:25:26 GMT (-9.6, 119.5) 33 km 5.6 MB, 5.6 MS, 5.9 UNKNOWN, 5.8 MW
85.236 41.5 deg 39.689 deg Kamchatka Peninsula, Russia 1996/07/07 10:49:59 GMT (58.6, 157.8) 10 km 5.6 MB, 5.6 MS, 5.8 UNKNOWN, 5.8 MW
84.657555 63.3 deg 120.733 deg Solomon Islands 1995/08/17 18:09:59 GMT (-6.1, 154.4) 33 km 5.6 MS, 5.2 MB, 5.6 UNKNOWN, 5.6 MW
84.619415 92.7 deg 113.612 deg Fiji Islands Region 1996/08/05 22:38:22 GMT (-20.7, -178.3) 550 km 6.4 MB, 7.4 UNKNOWN, 7.3 MW
83.8354 30.6 deg 93.231 deg Bonin Islands, Japan Region 1998/08/20 06:40:55 GMT (28.9, 139.3) 441 km 6.1 MB, 7.0 UNKNOWN, 7.0 MW
82.31239 32.2 deg 96.46 deg Bonin Islands, Japan Region 1999/01/12 02:32:25 GMT (26.7, 140.2) 441 km 5.9 MB, 6.1 MW, 5.9 MW
82.30032 32.2 deg 191.708 deg Northern Sumatra, Indonesia 1994/11/20 18:34:35 GMT (4.2, 97.6) 167 km 5.7 MB
80.8828 33.9 deg 63.156 deg Kuril Islands 1994/10/05 20:39:47 GMT (43.9, 147.4) 33 km 6.2 MB, 5.6 MS, 5.9 UNKNOWN

Losers

(6 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
83.9626 31.3 deg 69.774 deg Off East Coast Of Honshu, Japan 1994/12/28 12:29:21 GMT (40.5, 143.6) 33 km 5.6 MB
73.92856 45.2 deg 161.032 deg Bali Sea 1996/11/02 00:08:50 GMT (-7.6, 117.3) 302 km 5.5 MB, 5.8 UNKNOWN, 5.8 MW
72.74865 33.9 deg 62.245 deg Kuril Islands 1999/01/09 03:05:37 GMT (44.4, 147.3) 119 km 5.8 MB, 5.8 MW, 5.6 MW
67.23838 57.7 deg 127.561 deg Eastern New Guinea Reg., P.N.G. 1993/10/13 03:07:30 GMT (-6.0, 146.2) 33 km 6.1 MB, 6.8 MS, 6.5 UNKNOWN, 6.5 ML
61.076736 37.8 deg 48.027 deg Northwest Of Kuril Islands 1996/10/08 07:52:58 GMT (52.9, 152.5) 627 km 5.6 UNKNOWN, 5.2 MB
51.673744 40.6 deg 142.425 deg Halmahera, Indonesia 1993/05/30 17:13:20 GMT (1.6, 127.2) 99 km 5.6 MB