Station X4 MA09B - Snohomish County, WA USA

Network: X416 - Monitoring Active Faults for Tectonic Mapping Efforts in Washington State

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
MA09B Snohomish County, WA USA (47.93, -121.93) 2016-10-27 / 2017-08-30 -1.0 m
Crust2 Type:L3,continental arc, Southern Andes, 0.2 km seds.
Thickness Estimate:30 km
Thickness StdDev:12 km
Vp/Vs Estimate:1.60
Vp/Vs StdDev:0.08
Vs Estimate:4.123 km/s
Poisson's Ratio:0.18
Peak Value:0.25
Assumed Vp:6.597 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.646
Nearby stations H:42 km +- 18 km
(2.0 deg) Vp/Vs:1.60 +- 0.00

4 with match > 90% ( 3.6363637 %) and 15 with match > 80% ( 13.636364 %) out of 110.

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 30 km 1.60 6.597 km/s 4.123 km/s 0.18
Crust2.0 40 km 1.77 6.597 km/s 3.723 km/s 0.27 L3,continental arc, Southern Andes, 0.2 km seds.
Global Maxima 30 km 1.60 6.597 km/s 4.123 km/s 0.18 amp=0.2459517
Local Maxima 1 28 km 1.60 6.597 km/s 4.123 km/s 0.18 amp=0.17235433
Local Maxima 2 42 km 1.60 6.597 km/s 4.123 km/s 0.18 amp=0.09637579
Local Maxima 3 40 km 1.60 6.597 km/s 4.123 km/s 0.18 amp=0.07251872
Local Maxima 4 32 km 2.02 6.597 km/s 3.266 km/s 0.34 amp=0.046212632
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps2.75 SECOND
PpPs11.92 SECOND
PsPs/PpSs14.67 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

(15 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
91.93873 67.3 deg 300.989 deg Near East Coast Of Honshu, Japan 2016/11/21 20:59:49 GMT (37.4, 141.4) 11 km 6.9 MWB, 7.3 MI
91.486404 89.1 deg 253.104 deg Solomon Islands 2016/12/08 17:38:46 GMT (-10.7, 161.3) 41 km 7.8 mww
91.38395 89.9 deg 260.641 deg Solomon Islands 2017/01/22 04:30:23 GMT (-6.2, 155.1) 136 km 7.9 mww
91.17664 41.3 deg 304.491 deg Near Islands, Aleutian Islands 2017/06/02 22:24:47 GMT (54.0, 170.9) 8.2 km 6.8 Mww
88.7106 56.0 deg 123.605 deg Near West Coast Of Colombia 2017/01/12 16:06:31 GMT (6.1, -77.9) 3.3 km 5.5 mb
86.36615 97.0 deg 299.711 deg Luzon, Philippines 2017/08/11 05:28:25 GMT (14.0, 120.7) 168 km 6.2 Mww
86.07171 82.2 deg 227.818 deg Tonga Islands 2017/07/16 17:06:41 GMT (-20.4, -173.5) 10 km 5.5 Mww
85.14229 45.3 deg 131.233 deg Off Coast Of Central America 2016/11/24 18:43:48 GMT (12.0, -88.8) 10 km 7.0 MWW, 6.7 MWB, 7.2 MI
84.85782 88.3 deg 246.08 deg Vanuatu Islands 2017/05/09 13:52:10 GMT (-14.6, 167.4) 169 km 6.8 mww
83.51059 91.0 deg 269.044 deg Admiralty Islands Region, P.N.G. 2017/08/27 04:17:51 GMT (-1.4, 148.1) 10 km 6.6 Mi
83.27477 86.9 deg 236.637 deg South Of Fiji Islands 2017/01/03 21:52:31 GMT (-19.3, 176.1) 17 km 6.9 Mww
83.14341 91.2 deg 24.083 deg Dodecanese Islands, Greece 2017/07/20 22:31:12 GMT (36.9, 27.5) 10 km 6.7 Mww
82.83765 44.6 deg 310.906 deg Near East Coast Of Kamchatka 2017/03/29 04:09:24 GMT (56.9, 162.7) 23 km 6.6 Mww
82.491356 85.6 deg 342.445 deg Northern Xinjiang, China 2017/08/08 23:27:53 GMT (44.3, 82.8) 20 km 6.3 Mww
82.43977 90.1 deg 263.041 deg New Ireland Region, P.N.G. 2017/07/13 03:36:09 GMT (-4.8, 153.2) 47 km 6.4 mww

Losers

(95 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
93.667076 42.2 deg 305.26 deg Komandorskiye Ostrova Region 2017/07/17 23:34:21 GMT (54.2, 169.2) 48 km 7.4 Mi
93.3957 89.6 deg 262.941 deg New Ireland Region, P.N.G. 2016/12/17 10:51:11 GMT (-4.5, 153.6) 73 km 8.0 Mi
91.539566 85.2 deg 131.07 deg Chile-Bolivia Border Region 2017/01/06 06:30:33 GMT (-22.4, -67.7) 142 km 5.7 mb
85.8955 42.7 deg 132.688 deg Near Coast Of Guatemala 2017/06/22 12:31:04 GMT (13.7, -91.1) 10 km 6.8 Mi
83.44847 41.2 deg 132.903 deg Near Coast Of Chiapas, Mexico 2017/06/14 07:29:03 GMT (14.9, -92.0) 98 km 7.0 Mi
77.72612 36.1 deg 297.158 deg Andreanof Islands, Aleutian Is. 2017/05/08 17:00:42 GMT (51.4, -178.6) 1.0 km 6.6 Mi
76.317245 42.3 deg 305.962 deg Komandorskiye Ostrova Region 2017/07/17 11:05:08 GMT (54.6, 168.6) 7.9 km 6.2 Mww
75.35507 38.7 deg 239.844 deg Hawaii 2017/01/18 21:15:34 GMT (21.6, -157.5) 15 km 2.7 Ml
74.48491 41.2 deg 134.877 deg Near Coast Of Chiapas, Mexico 2017/06/14 06:38:48 GMT (14.2, -93.2) 11 km 5.5 Mww
73.78014 43.8 deg 131.997 deg Off Coast Of Central America 2017/05/12 10:41:26 GMT (12.9, -90.1) 10 km 6.2 Mww
73.01557 86.6 deg 236.633 deg South Of Fiji Islands 2017/01/03 22:40:12 GMT (-19.1, 176.2) 10 km 5.8 mb
71.89272 33.3 deg 150.295 deg Off Coast Of Jalisco, Mexico 2017/05/20 06:02:13 GMT (17.4, -105.4) 10 km 5.8 Mww
71.88181 87.3 deg 230.484 deg South Of Fiji Islands 2017/02/24 17:28:44 GMT (-23.2, -178.8) 415 km 6.9 mww
71.349945 89.0 deg 253.746 deg Solomon Islands 2016/12/20 12:33:15 GMT (-10.2, 160.9) 12 km 5.9 mb
71.30654 38.4 deg 139.285 deg Near Coast Of Oaxaca, Mexico 2017/06/14 23:58:52 GMT (15.4, -97.1) 6.9 km 5.5 Mww
70.98152 36.0 deg 297.263 deg Andreanof Islands, Aleutian Is. 2017/05/10 07:59:55 GMT (51.4, -178.5) 1.0 km 6.0 Mi
70.907555 77.5 deg 284.579 deg Mariana Islands 2017/05/31 06:29:32 GMT (19.1, 145.9) 121 km 5.4 Mww
69.32369 82.7 deg 21.628 deg Romania 2016/12/27 23:20:55 GMT (45.7, 26.6) 81 km 5.6 mb
68.98631 42.1 deg 305.42 deg Komandorskiye Ostrova Region 2017/07/28 02:39:16 GMT (54.3, 169.3) 10 km 5.5 mb
68.69536 92.1 deg 139.947 deg Off Coast Of Central Chile 2017/04/24 21:38:24 GMT (-33.0, -72.0) 33 km 6.7 Mi
68.19208 82.8 deg 233.072 deg Fiji Islands Region 2017/04/18 17:11:47 GMT (-18.1, -178.4) 626 km 6.0 Mww
67.63321 89.9 deg 135.202 deg La Rioja Province, Argentina 2017/08/01 06:13:53 GMT (-28.6, -68.7) 85 km 5.6 Mww
66.54368 60.0 deg 130.188 deg Near Coast Of Ecuador 2017/06/30 22:29:44 GMT (-0.3, -80.5) 7.4 km 6.0 Mww
66.32127 92.4 deg 136.903 deg San Juan Province, Argentina 2016/11/20 20:57:43 GMT (-31.6, -68.8) 116 km 6.4 MWP, 6.5 MWB
66.10621 82.8 deg 233.164 deg Fiji Islands Region 2017/02/24 23:46:45 GMT (-18.0, -178.5) 581 km 5.9 Mww
65.83173 87.1 deg 236.73 deg South Of Fiji Islands 2017/01/03 21:55:38 GMT (-19.4, 175.8) 10 km 5.7 mb
65.57421 35.2 deg 296.193 deg Andreanof Islands, Aleutian Is. 2017/05/08 15:31:28 GMT (51.1, -177.0) 41 km 5.5 Ml
65.43551 59.4 deg 302.941 deg Kuril Islands 2017/05/22 11:00:57 GMT (43.9, 147.7) 54 km 5.5 Mww
65.39036 81.4 deg 300.762 deg Southeast Of Ryukyu Islands 2017/07/26 10:32:57 GMT (26.9, 130.2) 10 km 5.9 Mww
65.388504 87.0 deg 131.163 deg Jujuy Province, Argentina 2017/02/18 12:10:15 GMT (-23.9, -66.7) 201 km 6.3 Mww
65.38061 92.2 deg 349.681 deg Tajikistan 2017/05/05 05:09:35 GMT (39.5, 71.4) 10 km 5.8 Mww
65.3001 76.1 deg 286.625 deg Mariana Islands Region 2016/12/21 16:43:58 GMT (21.5, 145.4) 17 km 5.9 Mwb
65.20833 64.8 deg 126.615 deg Peru-Ecuador Border Region 2017/04/18 17:49:55 GMT (-2.7, -75.3) 11 km 6.0 Mww
64.88641 85.9 deg 131.528 deg Chile-Argentina Border Region 2017/04/15 08:19:41 GMT (-23.2, -67.7) 135 km 6.2 Mww
64.44814 77.8 deg 302.501 deg Kyushu, Japan 2017/04/29 12:32:32 GMT (30.8, 131.4) 21 km 5.7 Mww
63.715794 67.2 deg 300.902 deg Near East Coast Of Honshu, Japan 2017/07/20 00:11:25 GMT (37.4, 141.6) 35 km 5.8 Mww
62.941845 30.1 deg 296.764 deg Fox Islands, Aleutian Islands 2017/08/09 05:40:42 GMT (52.6, -169.2) 47 km 5.3 mb
62.84745 89.0 deg 24.205 deg Aegean Sea 2017/06/12 12:28:38 GMT (38.9, 26.4) 10 km 6.3 Mww
62.244576 81.4 deg 303.436 deg Northwest Of Ryukyu Islands 2017/08/16 12:51:25 GMT (28.6, 127.9) 197 km 5.7 Mww
62.133766 63.3 deg 132.224 deg Peru-Ecuador Border Region 2017/06/05 11:34:11 GMT (-4.1, -80.4) 51 km 5.6 Mww
61.590652 81.3 deg 31.73 deg Central Italy 2016/10/30 06:40:19 GMT (42.9, 13.1) 10 km 6.6 MWW, 6.6 MWR
60.13418 91.6 deg 263.817 deg New Britain Region, P.N.G. 2017/08/07 06:26:44 GMT (-5.4, 151.6) 35 km 5.8 Mww
59.847378 90.3 deg 241.69 deg Vanuatu Islands 2017/04/05 22:17:42 GMT (-19.0, 169.6) 248 km 5.6 Mww
59.598274 59.9 deg 101.2 deg Leeward Islands 2017/02/03 19:54:21 GMT (15.1, -60.5) 35 km 5.6 Mwb
59.387444 84.0 deg 230.06 deg Fiji Islands Region 2017/06/19 09:15:43 GMT (-20.7, -176.5) 264 km 5.8 Mww
59.22212 92.1 deg 347.651 deg Southern Xinjiang, China 2016/11/25 14:24:29 GMT (39.2, 74.0) 13 km 6.6 MWW, 6.5 MWB, 6.6 MWC
58.334965 83.1 deg 230.637 deg Fiji Islands Region 2017/06/25 17:42:30 GMT (-19.7, -176.5) 38 km 6.2 Mww
56.565342 57.7 deg 99.807 deg Leeward Islands 2017/04/17 05:23:15 GMT (17.5, -61.1) 21 km 5.6 Mww
55.101864 88.9 deg 253.48 deg Solomon Islands 2016/12/20 04:21:28 GMT (-10.2, 161.2) 11 km 6.4 mww
55.019417 90.5 deg 261.144 deg Solomon Islands 2016/12/18 06:39:43 GMT (-6.3, 154.3) 10 km 5.8 Mww
54.827892 95.0 deg 295.513 deg Philippine Islands Region 2017/04/10 00:43:54 GMT (13.0, 125.4) 8.2 km 5.6 Mww
54.56262 88.9 deg 253.353 deg Solomon Islands 2017/01/19 23:04:20 GMT (-10.4, 161.3) 34 km 6.8 mwp
53.21421 91.1 deg 236.883 deg Southeast Of Loyalty Islands 2017/07/08 07:27:35 GMT (-22.6, 173.1) 10 km 5.6 Mww
52.701385 89.8 deg 226.654 deg Kermadec Islands Region 2017/05/12 00:46:52 GMT (-27.5, -176.9) 10 km 5.8 mb
52.389885 88.9 deg 253.496 deg Solomon Islands 2016/12/18 05:46:25 GMT (-10.2, 161.2) 39 km 6.0 Mwp
51.816685 82.4 deg 279.437 deg South Of Mariana Islands 2017/01/24 09:38:32 GMT (12.1, 146.3) 19 km 5.5 mb
51.789932 75.4 deg 294.26 deg Bonin Islands, Japan Region 2016/11/23 09:59:56 GMT (27.2, 140.0) 477 km 5.7 MB
51.127457 37.7 deg 297.563 deg Rat Islands, Aleutian Islands 2016/11/14 02:12:17 GMT (51.1, 178.8) 34 km 5.6 MWW, 5.0 ML, 5.4 ML
50.92198 90.1 deg 242.126 deg Vanuatu Islands 2017/02/26 06:44:21 GMT (-18.5, 169.4) 244 km 5.5 mb
50.48101 68.2 deg 301.205 deg Near East Coast Of Honshu, Japan 2016/12/28 12:38:50 GMT (36.9, 140.4) 10 km 5.9 Mww
50.45901 66.7 deg 298.747 deg Off East Coast Of Honshu, Japan 2017/07/30 12:45:06 GMT (36.3, 143.7) 17 km 5.3 Mww
50.425274 77.7 deg 129.768 deg Southern Peru 2016/12/01 22:40:26 GMT (-15.3, -70.8) 10 km 6.3 Mww
49.947094 84.6 deg 126.407 deg Southern Bolivia 2017/02/21 14:09:04 GMT (-19.3, -63.9) 598 km 6.5 Mww
48.92534 95.0 deg 266.26 deg Eastern New Guinea Reg., P.N.G. 2017/01/08 08:52:08 GMT (-6.2, 147.5) 67 km 5.9 Mww
47.815086 93.4 deg 268.569 deg Bismarck Sea 2017/08/07 12:02:50 GMT (-3.5, 146.8) 10 km 5.5 Mww
47.706947 34.0 deg 296.524 deg Andreanof Islands, Aleutian Is. 2017/05/28 07:06:14 GMT (51.6, -175.3) 8.0 km 5.6 Ml
47.268387 67.3 deg 301.188 deg Near East Coast Of Honshu, Japan 2017/02/28 07:49:01 GMT (37.6, 141.3) 38 km 5.7 Mww
47.09096 93.5 deg 265.041 deg New Britain Region, P.N.G. 2017/03/05 22:47:53 GMT (-6.0, 149.4) 31 km 6.3 mww
46.999435 73.1 deg 126.918 deg Peru-Brazil Border Region 2016/12/18 13:30:11 GMT (-10.0, -71.0) 619 km 6.4 Mww
46.35415 98.1 deg 273.226 deg Irian Jaya, Indonesia 2017/08/14 23:49:29 GMT (-3.9, 140.2) 36 km 5.5 mb
46.252876 70.2 deg 309.378 deg Sea Of Japan 2017/07/12 19:48:07 GMT (40.9, 131.6) 538 km 5.8 Mww
46.172974 92.9 deg 225.775 deg Kermadec Islands, New Zealand 2017/06/15 00:26:16 GMT (-30.6, -178.0) 24 km 5.9 Mww
45.99822 56.2 deg 303.444 deg Kuril Islands 2017/07/30 21:00:49 GMT (46.2, 151.0) 87 km 5.7 mb
45.709003 85.7 deg 283.319 deg South Of Mariana Islands 2017/01/11 14:38:39 GMT (12.2, 141.1) 10 km 5.5 mb
45.514793 60.1 deg 122.021 deg Colombia 2016/10/31 00:20:11 GMT (3.4, -74.5) 33 km 5.6 MWW, 5.4 MWB
44.965862 77.2 deg 132.678 deg Near Coast Of Peru 2017/07/18 02:05:19 GMT (-16.4, -73.6) 44 km 6.4 Mww
44.86042 77.2 deg 132.522 deg Near Coast Of Peru 2017/08/11 21:45:09 GMT (-16.3, -73.5) 35 km 5.6 Mww
44.43331 72.1 deg 293.86 deg Southeast Of Honshu, Japan 2017/07/27 23:58:52 GMT (29.3, 143.0) 10 km 5.3 Mww
43.33072 88.9 deg 253.337 deg Solomon Islands 2016/12/10 02:38:21 GMT (-10.3, 161.3) 36 km 5.6 Mwp
43.183556 89.4 deg 236.734 deg Vanuatu Islands Region 2017/02/23 21:10:31 GMT (-21.3, 174.4) 10 km 5.5 mb
43.17474 85.7 deg 230.177 deg South Of Fiji Islands 2016/11/16 20:26:15 GMT (-22.1, -177.6) 305 km 5.5 MB
42.893757 89.5 deg 226.414 deg Kermadec Islands Region 2017/07/02 09:58:50 GMT (-27.4, -176.5) 16 km 5.7 Mww
40.9567 95.2 deg 267.053 deg Eastern New Guinea Reg., P.N.G. 2017/02/23 15:11:05 GMT (-5.9, 146.7) 116 km 5.4 Mww
40.754498 83.0 deg 233.479 deg Fiji Islands Region 2017/08/19 02:00:52 GMT (-18.0, -178.9) 539 km 6.4 Mww
40.18057 85.3 deg 339.906 deg Northern Xinjiang, China 2016/12/08 05:15:04 GMT (43.8, 86.3) 14 km 5.9 Mwp
40.065125 88.2 deg 247.421 deg Vanuatu Islands 2017/01/16 01:16:38 GMT (-13.7, 166.4) 10 km 5.8 mb
39.733807 88.9 deg 253.682 deg Solomon Islands 2017/01/10 15:27:15 GMT (-10.1, 161.0) 28 km 6.3 Mww
39.1555 88.8 deg 231.185 deg South Of Fiji Islands 2017/06/17 22:26:02 GMT (-24.1, 179.6) 518 km 6.1 Mww
39.0008 70.6 deg 302.083 deg Eastern Honshu, Japan 2017/06/24 22:02:16 GMT (35.8, 137.6) 10 km 5.2 Mww
38.15077 83.5 deg 131.117 deg Chile-Bolivia Border Region 2017/05/14 19:44:23 GMT (-20.9, -68.7) 124 km 5.6 Mww
36.986946 66.0 deg 128.836 deg Northern Peru 2017/01/02 13:13:48 GMT (-4.9, -76.3) 108 km 5.9 Mwb
35.644142 89.0 deg 253.669 deg Solomon Islands 2016/12/20 08:49:25 GMT (-10.2, 161.0) 38 km 5.5 mb
29.359539 90.1 deg 263.094 deg New Ireland Region, P.N.G. 2016/10/28 05:26:57 GMT (-4.7, 153.2) 61 km 5.7 MB
28.184082 89.3 deg 252.879 deg Solomon Islands 2016/12/09 21:38:23 GMT (-10.9, 161.4) 10 km 5.8 Mww
26.941872 86.3 deg 236.796 deg Fiji Islands Region 2017/01/04 20:03:52 GMT (-18.8, 176.3) 7.0 km 5.7 Mww