Station AV ANNQ - Aniakchak Nanwaq, Alaska
Network: AV - Alaska Volcano Observatory
Nearby stations (2 deg radius)
| Station | Name | (Lat, Lon) | Start / End | Elevation |
| ANNQ | Aniakchak Nanwaq, Alaska | (56.93, -158.11) | 2022-07-27 / 2499-01-01 | 371 m |
| Crust2 Type: | C3,continental shelf, 2 km seds. |
| Thickness Estimate: | 33 km |
| Thickness StdDev: | 4.5 km |
| Vp/Vs Estimate: | 1.84 |
| Vp/Vs StdDev: | 0.09 |
| Vs Estimate: | 3.338 km/s |
| Poisson's Ratio: | 0.29 |
| Peak Value: | 0.03 |
| Assumed Vp: | 6.134 km/s |
| Ps Weight: | 0.33333334 |
| PpPs Weight: | 0.33333334 |
| PsPs Weight: | 0.33333328 |
| Residual Complexity: | 0.716 |
| Nearby stations H: | +- |
| (2.0 deg) Vp/Vs: | +- |
6 with match > 90% ( 5.6603775 %) and 17 with match > 80% ( 16.037735 %) out of 106.
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 | 33 km | 1.84 | 6.134 km/s | 3.338 km/s | 0.29 | |
| Crust2.0 | 31 km | 1.80 | 6.134 km/s | 3.406 km/s | 0.28 | C3,continental shelf, 2 km seds. |
| Global Maxima | 33 km | 1.84 | 6.134 km/s | 3.338 km/s | 0.29 | amp=0.026724096 |
| Local Maxima 1 | 31 km | 1.81 | 6.134 km/s | 3.398 km/s | 0.28 | amp=0.023378102 |
| Local Maxima 2 | 40 km | 1.68 | 6.134 km/s | 3.662 km/s | 0.22 | amp=0.019815732 |
| Local Maxima 3 | 30 km | 2.01 | 6.134 km/s | 3.048 km/s | 0.34 | amp=0.014995914 |
| Local Maxima 4 | 26 km | 1.86 | 6.134 km/s | 3.307 km/s | 0.30 | amp=0.012329634 |
| Predicted Arrivals for vertical incidence (zero ray parameter) | |
| Ps | 4.54 SECOND |
| PpPs | 15.38 SECOND |
| PsPs/PpSs | 19.92 SECOND |
Events Processed for this Station
Download zip of receiver functions as SAC
Plot maxima for each earthquake.
Events Used in the Stack
(17 events)| Radial Match | Distance | Baz | FERegion | Time | Lat/Lon | Depth | Magnitude |
| 95.7672 | 55.9 deg | 110.433 deg | Near Coast Of Michoacan, Mexico | 2022/09/19 18:05:09 UTC | (18.2, -103.4) | 10 km | 7.5 Mi |
| 94.48242 | 84.0 deg | 208.918 deg | Southeast Of Loyalty Islands | 2023/05/20 01:51:01 UTC | (-23.1, 170.4) | 45 km | 7.4 Mi |
| 94.4064 | 77.2 deg | 240.878 deg | New Guinea, Papua New Guinea | 2023/04/02 18:04:12 UTC | (-4.3, 143.2) | 74 km | 7.3 Mi |
| 91.69478 | 79.5 deg | 258.698 deg | Northern Molucca Sea | 2023/01/18 06:06:11 UTC | (2.7, 127.1) | 29 km | 7.0 mwc |
| 91.573524 | 73.6 deg | 196.574 deg | Tonga Islands | 2023/05/10 16:02:00 UTC | (-15.6, -174.6) | 210 km | 7.6 mww |
| 90.41619 | 76.9 deg | 193.556 deg | Tonga Islands Region | 2022/11/11 10:48:45 UTC | (-19.3, -172.1) | 25 km | 7.3 Mww |
| 88.83968 | 86.2 deg | 250.944 deg | Tanimbar Islands Reg., Indonesia | 2023/01/09 17:47:34 UTC | (-7.1, 130.0) | 95 km | 7.6 mww |
| 88.664314 | 76.9 deg | 237.629 deg | Eastern New Guinea Reg., P.N.G. | 2023/10/07 08:34:26 UTC | (-5.6, 146.1) | 53 km | 6.7 mww |
| 87.39648 | 75.0 deg | 223.357 deg | Solomon Islands | 2022/11/22 02:03:07 UTC | (-9.8, 159.6) | 14 km | 7.0 Mww |
| 86.93117 | 56.0 deg | 109.821 deg | Michoacan, Mexico | 2022/09/22 06:16:11 UTC | (18.4, -102.9) | 61 km | 6.8 mww |
| 86.10649 | 76.8 deg | 213.722 deg | Vanuatu Islands | 2023/07/26 12:44:35 UTC | (-14.8, 167.9) | 13 km | 6.4 mww |
| 85.717995 | 88.2 deg | 197.079 deg | Kermadec Islands, New Zealand | 2023/04/24 00:41:54 UTC | (-30.0, -177.9) | 34 km | 7.3 mww |
| 83.657486 | 73.7 deg | 270.312 deg | Mindoro, Philippines | 2023/06/15 02:19:25 UTC | (13.8, 120.7) | 124 km | 6.2 mww |
| 82.05601 | 65.1 deg | 100.814 deg | Guatemala | 2023/05/17 23:02:00 UTC | (15.1, -90.9) | 256 km | 6.4 mww |
| 81.43256 | 65.9 deg | 275.528 deg | Taiwan | 2022/09/18 06:44:15 UTC | (23.1, 121.3) | 10 km | 7.2 Mi |
| 80.84927 | 70.5 deg | 294.557 deg | Sichuan, China | 2022/09/05 04:52:19 UTC | (29.7, 102.3) | 10 km | 6.6 mww |
| 80.53944 | 87.8 deg | 197.943 deg | Kermadec Islands, New Zealand | 2023/03/04 06:41:22 UTC | (-29.5, -178.8) | 206 km | 6.9 mww |
Losers
(89 events)| Radial Match | Distance | Baz | FERegion | Time | Lat/Lon | Depth | Magnitude | Reason |
| 88.967834 | 84.0 deg | 208.668 deg | Southeast Of Loyalty Islands | 2023/05/19 02:57:07 UTC | (-23.2, 170.7) | 10 km | 7.7 Mi | |
| 88.22185 | 88.1 deg | 195.296 deg | Kermadec Islands Region | 2023/03/16 00:55:58 UTC | (-30.2, -175.9) | 10 km | 7.1 Mi | |
| 87.93509 | 76.8 deg | 237.64 deg | Eastern New Guinea Reg., P.N.G. | 2023/10/07 08:40:13 UTC | (-5.5, 146.2) | 74 km | 6.7 Mww | |
| 86.36473 | 81.0 deg | 197.218 deg | South Of Fiji Islands | 2023/06/15 18:06:29 UTC | (-22.9, -176.6) | 206 km | 7.0 Mi | |
| 85.054855 | 59.8 deg | 246.222 deg | South Of Mariana Islands | 2023/08/14 13:51:54 UTC | (13.4, 147.5) | 10 km | 6.1 mww | |
| 84.7266 | 93.1 deg | 262.412 deg | Bali Sea | 2023/08/28 19:55:31 UTC | (-6.8, 116.5) | 514 km | 7.1 Mww | |
| 79.06936 | 69.0 deg | 273.176 deg | Philippine Islands Region | 2023/09/12 11:03:18 UTC | (19.3, 121.2) | 41 km | 6.3 Mww | |
| 77.39784 | 77.7 deg | 92.63 deg | Panama-Colombia Border Region | 2023/05/25 03:05:34 UTC | (8.9, -77.1) | 10 km | 6.6 Mi | |
| 76.83771 | 63.5 deg | 103.564 deg | Near Coast Of Chiapas, Mexico | 2023/07/14 09:29:01 UTC | (15.0, -93.9) | 35 km | 6.3 mww | |
| 76.34567 | 78.6 deg | 199.377 deg | Fiji Islands Region | 2022/11/12 07:09:14 UTC | (-20.1, -178.4) | 587 km | 7.0 mww | |
| 76.14158 | 73.8 deg | 224.618 deg | Solomon Islands | 2023/03/27 22:19:15 UTC | (-8.2, 158.9) | 86 km | 6.1 mww | |
| 75.80965 | 77.8 deg | 260.983 deg | Mindanao, Philippines | 2023/10/04 11:21:48 UTC | (5.3, 126.1) | 122 km | 6.4 mww | |
| 75.75309 | 77.6 deg | 259.411 deg | Talaud Islands, Indonesia | 2023/09/26 01:39:44 UTC | (4.7, 127.5) | 100 km | 5.9 mww | |
| 75.22517 | 76.4 deg | 237.066 deg | Eastern New Guinea Reg., P.N.G. | 2023/03/14 00:49:08 UTC | (-5.4, 146.9) | 213 km | 6.3 mww | |
| 74.06017 | 60.8 deg | 273.801 deg | Ryukyu Islands, Japan | 2022/09/18 08:09:59 UTC | (26.3, 126.0) | 10 km | 5.7 Mww | |
| 72.75655 | 75.9 deg | 97.804 deg | South Of Panama | 2023/04/04 22:18:12 UTC | (7.6, -82.3) | 10 km | 6.3 mww | |
| 70.7395 | 91.1 deg | 197.746 deg | South Of Kermadec Islands | 2023/09/08 09:09:58 UTC | (-32.7, -179.3) | 90 km | 6.6 mww | |
| 69.50172 | 78.1 deg | 321.524 deg | Hindu Kush Region, Afghanistan | 2023/03/21 16:47:23 UTC | (36.5, 71.0) | 188 km | 6.5 Mww | |
| 68.7116 | 80.6 deg | 257.468 deg | Halmahera, Indonesia | 2023/09/11 12:51:34 UTC | (1.1, 127.5) | 163 km | 6.0 mww | |
| 68.400024 | 73.7 deg | 231.694 deg | New Britain Region, P.N.G. | 2023/09/28 19:21:17 UTC | (-5.3, 152.8) | 49 km | 5.7 Mww | |
| 68.13723 | 75.8 deg | 262.308 deg | Mindanao, Philippines | 2023/02/01 10:44:44 UTC | (7.7, 126.1) | 9.4 km | 6.0 mww | |
| 67.95972 | 77.1 deg | 237.811 deg | Eastern New Guinea Reg., P.N.G. | 2023/10/07 13:10:40 UTC | (-5.7, 145.9) | 38 km | 5.7 mww | |
| 67.81766 | 57.6 deg | 250.492 deg | Mariana Islands | 2023/07/25 10:35:18 UTC | (17.1, 145.5) | 373 km | 5.6 mww | |
| 67.590546 | 75.0 deg | 223.397 deg | Solomon Islands | 2022/11/22 02:13:03 UTC | (-9.8, 159.6) | 10 km | 5.6 mb | |
| 66.550255 | 83.9 deg | 260.495 deg | Minahassa Peninsula, Sulawesi | 2023/01/18 00:34:43 UTC | (-0.0, 123.2) | 147 km | 6.1 mww | |
| 66.53862 | 76.5 deg | 239.31 deg | Near N Coast Of New Guinea, P.N.G. | 2023/06/19 11:18:11 UTC | (-4.5, 144.9) | 21 km | 5.9 Mww | |
| 66.24701 | 98.1 deg | 280.746 deg | Southern Sumatra, Indonesia | 2023/04/22 21:17:46 UTC | (-1.0, 98.5) | 10 km | 5.7 mww | |
| 66.21749 | 75.9 deg | 320.566 deg | Tajikistan-Xinjiang Border Reg. | 2023/02/23 00:37:40 UTC | (38.1, 73.2) | 21 km | 6.8 Mww | |
| 65.956825 | 71.1 deg | 266.224 deg | Philippine Islands Region | 2023/04/04 12:54:32 UTC | (13.8, 125.5) | 15 km | 6.2 mww | |
| 65.778656 | 68.5 deg | 99.805 deg | Off Coast Of Central America | 2023/07/19 00:22:07 UTC | (12.8, -88.1) | 70 km | 6.5 mww | |
| 65.56133 | 55.6 deg | 110.379 deg | Near Coast Of Michoacan, Mexico | 2022/09/20 08:17:16 UTC | (18.5, -103.5) | 54 km | 5.8 mww | |
| 64.434586 | 40.4 deg | 273.015 deg | Hokkaido, Japan Region | 2023/08/11 00:14:32 UTC | (41.1, 142.8) | 30 km | 5.9 mww | |
| 63.52737 | 54.0 deg | 110.974 deg | Near Coast Of Jalisco, Mexico | 2023/09/08 16:37:17 UTC | (19.5, -104.9) | 45 km | 5.7 mww | |
| 63.49778 | 77.3 deg | 214.792 deg | Vanuatu Islands | 2023/01/11 08:39:53 UTC | (-14.9, 166.7) | 10 km | 5.8 Mww | |
| 63.053535 | 72.9 deg | 231.148 deg | New Ireland Region, P.N.G. | 2022/10/13 22:20:20 UTC | (-4.8, 153.6) | 71 km | 6.4 mww | |
| 62.65631 | 76.8 deg | 239.882 deg | Near N Coast Of New Guinea, P.N.G. | 2023/03/23 00:17:39 UTC | (-4.4, 144.3) | 132 km | 5.7 mww | |
| 62.406944 | 80.2 deg | 199.916 deg | Fiji Islands Region | 2023/08/02 01:32:35 UTC | (-21.6, -179.3) | 632 km | 5.8 mww | |
| 62.337322 | 78.1 deg | 197.659 deg | Fiji Islands Region | 2022/10/10 17:55:10 UTC | (-20.0, -176.5) | 11 km | 5.5 Mww | |
| 62.199863 | 77.2 deg | 241.435 deg | New Guinea, Papua New Guinea | 2023/05/02 20:09:59 UTC | (-4.1, 142.7) | 120 km | 5.5 Mww | |
| 62.110256 | 48.0 deg | 268.319 deg | Southeast Of Honshu, Japan | 2023/05/14 10:11:35 UTC | (33.4, 139.3) | 14 km | 5.6 mww | |
| 61.96983 | 50.3 deg | 264.848 deg | Southeast Of Honshu, Japan | 2023/10/05 01:59:58 UTC | (30.0, 139.9) | 10 km | 6.1 mww | |
| 61.6035 | 74.4 deg | 232.195 deg | New Britain Region, P.N.G. | 2023/06/05 15:41:40 UTC | (-5.7, 152.0) | 10 km | 5.2 Mww | |
| 61.52059 | 78.4 deg | 258.083 deg | North Of Halmahera, Indonesia | 2023/02/23 20:02:48 UTC | (3.3, 128.1) | 97 km | 6.3 mww | |
| 61.40163 | 76.5 deg | 196.67 deg | Tonga Islands | 2023/05/27 00:11:00 UTC | (-18.5, -175.2) | 215 km | 6.0 mww | |
| 61.267082 | 79.0 deg | 199.296 deg | Fiji Islands Region | 2023/02/27 06:40:59 UTC | (-20.5, -178.4) | 548 km | 5.6 Mww | |
| 60.80063 | 84.3 deg | 207.604 deg | Southeast Of Loyalty Islands | 2023/05/22 06:52:47 UTC | (-23.7, 171.7) | 30 km | 5.5 Mww | |
| 60.078598 | 74.7 deg | 234.835 deg | Bismarck Sea | 2023/03/01 05:36:14 UTC | (-4.8, 149.6) | 583 km | 6.5 Mi | |
| 60.05022 | 82.7 deg | 327.589 deg | Northwestern Afghanistan | 2023/10/07 07:40:29 UTC | (34.6, 62.0) | 7.7 km | 5.9 mww | |
| 59.92493 | 77.3 deg | 214.643 deg | Vanuatu Islands | 2023/01/08 12:32:42 UTC | (-14.9, 166.9) | 28 km | 7.0 mww | |
| 58.958202 | 77.6 deg | 213.655 deg | Vanuatu Islands | 2023/09/28 14:40:26 UTC | (-15.6, 167.7) | 126 km | 6.0 mww | |
| 58.659878 | 75.8 deg | 104.056 deg | Off Coast Of Central America | 2022/10/16 12:48:21 UTC | (4.4, -87.5) | 10 km | 6.3 Mww | |
| 58.574253 | 76.1 deg | 200.304 deg | Fiji Islands Region | 2023/06/20 19:59:15 UTC | (-17.4, -178.8) | 548 km | 5.7 Mww | |
| 58.484238 | 85.7 deg | 263.397 deg | Minahassa Peninsula, Sulawesi | 2023/09/09 14:43:24 UTC | (0.0, 119.8) | 9.9 km | 6.0 mww | |
| 58.09861 | 75.8 deg | 235.265 deg | New Britain Region, P.N.G. | 2022/09/02 22:39:51 UTC | (-5.7, 148.7) | 126 km | 6.1 Mww | |
| 57.83679 | 87.9 deg | 196.876 deg | Kermadec Islands, New Zealand | 2023/04/24 01:05:20 UTC | (-29.7, -177.6) | 35 km | 5.5 mb | |
| 57.78604 | 46.0 deg | 273.766 deg | Near West Coast Of Honshu, Japan | 2023/05/05 05:42:04 UTC | (37.5, 137.3) | 8.7 km | 6.2 mww | |
| 56.56648 | 82.5 deg | 270.194 deg | South China Sea | 2023/04/02 19:32:24 UTC | (6.4, 115.8) | 601 km | 5.5 mb | |
| 56.528034 | 92.8 deg | 260.069 deg | Flores Sea | 2023/04/02 08:40:54 UTC | (-7.8, 118.7) | 19 km | 5.5 Mww | |
| 56.252747 | 45.6 deg | 269.168 deg | Near East Coast Of Honshu, Japan | 2023/05/26 10:03:24 UTC | (35.6, 140.7) | 44 km | 6.2 mww | |
| 56.163734 | 70.5 deg | 272.819 deg | Luzon, Philippines | 2022/10/25 14:59:04 UTC | (17.9, 120.6) | 10 km | 6.8 Mi | |
| 55.936626 | 82.7 deg | 327.667 deg | Northwestern Afghanistan | 2023/10/07 06:41:02 UTC | (34.6, 61.9) | 10 km | 6.2 mww | |
| 55.37664 | 75.7 deg | 234.276 deg | New Britain Region, P.N.G. | 2023/04/19 09:06:03 UTC | (-5.9, 149.6) | 40 km | 6.3 mww | |
| 55.31595 | 61.0 deg | 274.506 deg | Northeast Of Taiwan | 2023/09/18 13:21:23 UTC | (26.4, 125.3) | 183 km | 6.3 mww | |
| 55.194855 | 81.6 deg | 196.443 deg | Tonga Islands Region | 2023/06/16 08:11:34 UTC | (-23.6, -175.9) | 22 km | 6.0 mww | |
| 54.859062 | 98.1 deg | 280.589 deg | Southern Sumatra, Indonesia | 2022/08/28 22:34:33 UTC | (-1.0, 98.6) | 12 km | 5.8 Mww | |
| 54.636284 | 81.4 deg | 196.049 deg | Tonga Islands Region | 2023/06/17 11:26:21 UTC | (-23.4, -175.4) | 35 km | 6.0 Mww | |
| 54.596275 | 61.4 deg | 249.39 deg | Mariana Islands | 2023/08/09 09:20:31 UTC | (13.4, 144.3) | 494 km | 5.7 Mi | |
| 54.54049 | 95.5 deg | 261.956 deg | South Of Bali, Indonesia | 2022/08/22 08:36:32 UTC | (-9.1, 115.6) | 141 km | 5.5 Mww | |
| 54.289944 | 86.3 deg | 251.43 deg | Banda Sea | 2023/05/24 15:49:34 UTC | (-7.0, 129.5) | 166 km | 6.2 Mww | |
| 54.122837 | 77.6 deg | 237.205 deg | Eastern New Guinea Reg., P.N.G. | 2023/02/04 12:22:36 UTC | (-6.4, 146.2) | 102 km | 5.7 mww | |
| 53.33891 | 78.6 deg | 54.729 deg | Northern Mid-Atlantic Ridge | 2023/03/21 20:41:08 UTC | (28.6, -43.6) | 10 km | 5.5 Mww | |
| 52.821033 | 75.8 deg | 196.281 deg | Tonga Islands | 2023/07/02 10:27:45 UTC | (-17.9, -174.7) | 247 km | 6.7 Mi | |
| 52.725193 | 87.3 deg | 103.09 deg | Peru-Ecuador Border Region | 2022/10/05 08:26:21 UTC | (-4.9, -80.6) | 48 km | 5.8 Mww | |
| 52.63216 | 84.9 deg | 251.805 deg | Banda Sea | 2023/08/29 04:34:42 UTC | (-5.6, 130.0) | 203 km | 5.9 mww | |
| 51.424736 | 50.3 deg | 264.789 deg | Southeast Of Honshu, Japan | 2023/10/05 02:06:32 UTC | (29.9, 139.9) | 10 km | 5.4 Mww | |
| 51.07078 | 71.5 deg | 265.626 deg | Philippine Islands Region | 2022/12/09 06:32:59 UTC | (13.2, 125.8) | 9.0 km | 5.8 mww | |
| 50.543224 | 62.7 deg | 102.586 deg | Chiapas, Mexico | 2023/08/09 09:33:26 UTC | (16.2, -93.6) | 111 km | 5.8 mww | |
| 50.39139 | 94.9 deg | 266.588 deg | Java, Indonesia | 2023/04/14 09:55:45 UTC | (-6.0, 112.0) | 594 km | 7.0 mww | |
| 50.079006 | 38.9 deg | 114.253 deg | Baja California, Mexico | 2022/11/22 16:39:05 UTC | (30.8, -116.4) | 10 km | 6.2 Mww | |
| 49.62154 | 83.0 deg | 341.981 deg | Turkey-Iran Border Region | 2023/01/28 18:14:44 UTC | (38.4, 44.9) | 10 km | 5.9 mww | |
| 48.849266 | 80.9 deg | 94.272 deg | Colombia | 2023/08/27 21:44:59 UTC | (5.3, -76.7) | 15 km | 5.7 Mww | |
| 47.081074 | 59.5 deg | 247.394 deg | Mariana Islands | 2023/03/01 19:28:07 UTC | (14.1, 146.8) | 9.9 km | 5.5 Mww | |
| 45.151417 | 48.8 deg | 270.396 deg | Near S. Coast Of Honshu, Japan | 2022/11/14 08:08:26 UTC | (33.8, 137.3) | 357 km | 6.1 mww | |
| 45.095974 | 75.8 deg | 323.546 deg | Tajikistan | 2023/03/22 20:07:44 UTC | (39.5, 70.0) | 5.6 km | 5.9 mb | |
| 44.8248 | 80.0 deg | 197.584 deg | Fiji Islands Region | 2022/08/28 18:48:01 UTC | (-21.8, -176.8) | 221 km | 5.6 mww | |
| 37.11815 | 83.3 deg | 209.309 deg | Southeast Of Loyalty Islands | 2022/11/17 11:21:30 UTC | (-22.3, 170.2) | 15 km | 5.5 Mww | |
| 35.636868 | 84.2 deg | 208.805 deg | Southeast Of Loyalty Islands | 2023/05/19 03:10:44 UTC | (-23.3, 170.4) | 19 km | 5.7 mb | |
| 35.373734 | 74.8 deg | 221.423 deg | Solomon Islands | 2023/05/21 15:45:13 UTC | (-10.3, 161.4) | 78 km | 6.1 Mww | |
| 28.722582 | 79.2 deg | 233.441 deg | Eastern New Guinea Reg., P.N.G. | 2023/07/06 20:04:08 UTC | (-9.5, 148.8) | 59 km | 5.5 mb |
