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) | |
Ps | 6.21 SECOND |
PpPs | 22.22 SECOND |
PsPs/PpSs | 28.43 SECOND |
Events Processed for this Station
Download zip of receiver functions as SAC
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 |