Station AV OKWE - Weeping Wall, Okmok Caldera, Alaska

Network: AV - Alaska Volcano Observatory

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
OKWE Weeping Wall, Okmok Caldera, Alaska (53.47, -168.24) 2003-01-09 / 2499-01-01 445 m
Crust2 Type:S3,continental slope, margin, transition 3.5 km seds.
Thickness Estimate:21 km
Thickness StdDev:5.3 km
Vp/Vs Estimate:1.60
Vp/Vs StdDev:0.06
Vs Estimate:3.675 km/s
Poisson's Ratio:0.18
Peak Value:0.03
Assumed Vp:5.88 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.896
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

3 with match > 90% ( 5.357143 %) and 10 with match > 80% ( 17.857143 %) out of 56.

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 21 km 1.60 5.88 km/s 3.675 km/s 0.18
Crust2.0 26 km 1.82 5.88 km/s 3.237 km/s 0.28 S3,continental slope, margin, transition 3.5 km seds.
Global Maxima 21 km 1.60 5.88 km/s 3.675 km/s 0.18 amp=0.03403818
Local Maxima 1 35 km 1.66 5.88 km/s 3.532 km/s 0.22 amp=0.018325534
Local Maxima 2 26 km 1.92 5.88 km/s 3.055 km/s 0.32 amp=0.011346456
Local Maxima 3 55 km 1.90 5.88 km/s 3.087 km/s 0.31 amp=0.009274715
Local Maxima 4 65 km 1.60 5.88 km/s 3.675 km/s 0.18 amp=0.007874264
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps2.12 SECOND
PpPs9.17 SECOND
PsPs/PpSs11.29 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

(10 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
91.04158 72.6 deg 183.819 deg Tonga Islands Region 2022/11/11 10:48:45 UTC (-19.3, -172.1) 25 km 7.3 Mww
90.92074 70.5 deg 232.481 deg New Guinea, Papua New Guinea 2023/04/02 18:04:12 UTC (-4.3, 143.2) 74 km 7.3 Mi
90.0537 40.3 deg 269.314 deg Near West Coast Of Honshu, Japan 2023/05/05 05:42:04 UTC (37.5, 137.3) 8.7 km 6.2 mww
89.80211 79.5 deg 242.747 deg Tanimbar Islands Reg., Indonesia 2023/01/09 17:47:34 UTC (-7.1, 130.0) 95 km 7.6 mww
87.95452 73.0 deg 250.833 deg Northern Molucca Sea 2023/01/18 06:06:11 UTC (2.7, 127.1) 29 km 7.0 mwc
87.95088 59.5 deg 269.424 deg Taiwan 2024/04/02 23:58:11 UTC (23.8, 121.6) 35 km 7.4 mww
86.71544 83.6 deg 188.417 deg Kermadec Islands, New Zealand 2023/04/24 00:41:54 UTC (-30.0, -177.9) 34 km 7.3 mww
86.71223 69.0 deg 186.571 deg Tonga Islands 2023/05/10 16:02:00 UTC (-15.6, -174.6) 210 km 7.6 mww
86.55378 78.5 deg 200.014 deg Southeast Of Loyalty Islands 2023/05/20 01:51:01 UTC (-23.1, 170.4) 45 km 7.4 Mi
81.695 86.2 deg 340.121 deg Turkey 2023/02/06 10:24:49 UTC (38.0, 37.2) 10 km 7.5 mww

Losers

(46 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
88.96266 78.5 deg 199.762 deg Southeast Of Loyalty Islands 2023/05/19 02:57:07 UTC (-23.2, 170.7) 10 km 7.7 Mi
86.389656 83.6 deg 83.78 deg Panama-Colombia Border Region 2023/05/25 03:05:34 UTC (8.9, -77.1) 10 km 6.6 Mi
79.143295 64.9 deg 258.997 deg Philippine Islands Region 2023/04/04 12:54:32 UTC (13.8, 125.5) 15 km 6.2 mww
75.35424 69.7 deg 228.526 deg Eastern New Guinea Reg., P.N.G. 2023/03/14 00:49:08 UTC (-5.4, 146.9) 213 km 6.3 mww
74.436935 77.4 deg 252.516 deg Minahassa Peninsula, Sulawesi 2023/01/18 00:34:43 UTC (-0.0, 123.2) 147 km 6.1 mww
74.374825 51.3 deg 240.476 deg Mariana Islands 2024/04/02 09:54:09 UTC (15.8, 146.9) 10 km 6.2 mww
74.25732 78.4 deg 200.177 deg Southeast Of Loyalty Islands 2023/05/23 06:42:00 UTC (-23.0, 170.2) 18 km 5.9 mww
73.95356 68.7 deg 184.893 deg Samoa Islands Region 2022/12/04 19:24:15 UTC (-15.4, -173.0) 36 km 6.7 Mww
73.67424 79.1 deg 192.26 deg South Of Fiji Islands 2023/04/28 03:13:43 UTC (-25.1, 178.5) 577 km 6.2 mb
69.33212 83.1 deg 189.25 deg Kermadec Islands, New Zealand 2023/03/04 06:41:22 UTC (-29.5, -178.8) 206 km 6.9 mww
68.860954 68.7 deg 214.276 deg Solomon Islands 2022/11/22 02:03:07 UTC (-9.8, 159.6) 14 km 7.0 Mww
68.21747 72.8 deg 186.55 deg Tonga Islands 2024/05/26 20:47:09 UTC (-19.4, -174.9) 112 km 6.6 mww
67.636955 81.5 deg 88.74 deg South Of Panama 2023/04/04 22:18:12 UTC (7.6, -82.3) 10 km 6.3 mww
66.4608 71.9 deg 250.237 deg North Of Halmahera, Indonesia 2023/02/23 20:02:48 UTC (3.3, 128.1) 97 km 6.3 mww
65.12891 40.4 deg 269.272 deg Near West Coast Of Honshu, Japan 2024/06/02 21:31:38 UTC (37.5, 137.2) 4.8 km 5.8 mww
63.338562 83.6 deg 186.621 deg Kermadec Islands Region 2023/03/16 00:55:58 UTC (-30.2, -175.9) 10 km 7.1 Mi
61.42248 83.8 deg 189.07 deg Kermadec Islands, New Zealand 2023/01/26 10:45:52 UTC (-30.2, -178.7) 131 km 6.0 mww
61.37484 70.5 deg 90.857 deg Guatemala 2023/05/17 23:02:00 UTC (15.1, -90.9) 256 km 6.4 mww
60.927917 76.2 deg 191.682 deg South Of Fiji Islands 2023/04/18 04:31:41 UTC (-22.3, 179.5) 602 km 6.5 Mi
60.786278 68.6 deg 205.813 deg Santa Cruz Islands 2024/05/21 09:50:43 UTC (-12.1, 167.3) 248 km 5.4 Mww
60.734028 68.5 deg 212.26 deg Solomon Islands 2023/05/21 15:45:13 UTC (-10.3, 161.4) 78 km 6.1 Mww
59.92281 69.4 deg 254.697 deg Mindanao, Philippines 2023/02/01 10:44:44 UTC (7.7, 126.1) 9.4 km 6.0 mww
59.37005 76.8 deg 314.693 deg Hindu Kush Region, Afghanistan 2023/03/21 16:47:23 UTC (36.5, 71.0) 188 km 6.5 Mww
58.534477 79.6 deg 192.358 deg South Of Fiji Islands 2022/11/09 10:14:33 UTC (-25.6, 178.3) 624 km 6.6 Mww
57.592953 72.9 deg 250.982 deg Northern Molucca Sea 2023/01/24 02:13:14 UTC (2.8, 126.9) 35 km 5.8 Mww
57.041164 71.9 deg 186.948 deg Tonga Islands 2023/05/27 00:11:00 UTC (-18.5, -175.2) 215 km 6.0 mww
56.89359 75.4 deg 185.986 deg Tonga Islands Region 2022/12/27 01:00:46 UTC (-22.0, -174.5) 10 km 5.5 Mww
55.775196 87.1 deg 339.906 deg Turkey 2023/02/06 01:28:13 UTC (37.1, 37.2) 12 km 6.7 Mww
55.592056 70.9 deg 228.687 deg Eastern New Guinea Reg., P.N.G. 2023/02/04 12:22:36 UTC (-6.4, 146.2) 102 km 5.7 mww
55.151592 74.5 deg 314.001 deg Tajikistan-Xinjiang Border Reg. 2023/02/23 00:37:40 UTC (38.1, 73.2) 21 km 6.8 Mww
54.70639 45.1 deg 258.57 deg Bonin Islands, Japan Region 2023/01/16 04:49:52 UTC (29.0, 139.4) 405 km 6.3 mww
54.43316 80.0 deg 192.228 deg South Of Fiji Islands 2022/11/09 09:38:42 UTC (-26.0, 178.4) 629 km 6.8 mww
53.41871 43.7 deg 263.43 deg Southeast Of Honshu, Japan 2024/05/29 17:14:58 UTC (32.3, 137.6) 392 km 5.5 Mww
52.758904 67.4 deg 215.529 deg Solomon Islands 2023/03/27 22:19:15 UTC (-8.2, 158.9) 86 km 6.1 mww
51.939583 68.0 deg 226.179 deg Bismarck Sea 2023/03/01 05:36:14 UTC (-4.8, 149.6) 583 km 6.5 Mi
51.274265 91.9 deg 131.139 deg Easter Island Region 2022/11/27 02:50:52 UTC (-24.9, -112.2) 10 km 5.6 Mww
51.149223 32.0 deg 95.839 deg Near Coast Of Northern Calif. 2022/12/20 10:34:24 UTC (40.5, -124.4) 18 km 6.4 mw
50.083397 46.7 deg 250.673 deg Volcano Islands, Japan Region 2023/05/30 00:52:06 UTC (24.1, 143.0) 10 km 5.8 Mww
49.803135 79.6 deg 243.237 deg Banda Sea 2023/05/24 15:49:34 UTC (-7.0, 129.5) 166 km 6.2 Mww
48.89031 47.6 deg 267.918 deg Kyushu, Japan 2022/12/17 18:06:03 UTC (31.8, 131.7) 30 km 5.6 mww
48.078114 88.7 deg 258.194 deg Java, Indonesia 2023/04/14 09:55:45 UTC (-6.0, 112.0) 594 km 7.0 mww
47.834835 78.3 deg 199.975 deg Southeast Of Loyalty Islands 2023/05/20 02:09:54 UTC (-23.0, 170.5) 10 km 6.5 mww
47.087643 86.3 deg 251.776 deg Flores Sea 2023/04/02 08:40:54 UTC (-7.8, 118.7) 19 km 5.5 Mww
45.62172 73.8 deg 189.902 deg Fiji Islands Region 2022/11/12 07:09:14 UTC (-20.1, -178.4) 587 km 7.0 mww
45.22681 51.3 deg 240.497 deg Mariana Islands 2024/04/02 22:16:44 UTC (15.9, 146.9) 10 km 5.2 Mww
44.69225 74.5 deg 252.77 deg Celebes Sea 2022/11/06 00:03:13 UTC (2.5, 124.7) 239 km 5.6 mww