Station NM HDAR2 - I40 Weigh Station,West Memphis,AR
Network: NM - Cooperative New Madrid Seismic Network
Nearby stations (2 deg radius)
| Station | Name | (Lat, Lon) | Start / End | Elevation |
| HDAR2 | I40 Weigh Station,West Memphis,AR | (35.15, -90.09) | 2012-08-09 / 2599-12-31 | 100 m |
| Crust2 Type: | DD,Platform 5.0 km seds. |
| Thickness Estimate: | 28 km |
| Thickness StdDev: | 8.9 km |
| Vp/Vs Estimate: | 2.08 |
| Vp/Vs StdDev: | 0.16 |
| Vs Estimate: | 3.012 km/s |
| Poisson's Ratio: | 0.35 |
| Peak Value: | 0.08 |
| Assumed Vp: | 6.273 km/s |
| Ps Weight: | 0.33333334 |
| PpPs Weight: | 0.33333334 |
| PsPs Weight: | 0.33333328 |
| Residual Complexity: | 0.708 |
| Nearby stations H: | +- |
| (2.0 deg) Vp/Vs: | +- |
3 with match > 90% ( 3.1578948 %) and 9 with match > 80% ( 9.473684 %) out of 95.
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 | 28 km | 2.08 | 6.273 km/s | 3.012 km/s | 0.35 | |
| Crust2.0 | 41 km | 1.78 | 6.273 km/s | 3.524 km/s | 0.27 | DD,Platform 5.0 km seds. |
| Global Maxima | 28 km | 2.08 | 6.273 km/s | 3.012 km/s | 0.35 | amp=0.084474355 |
| Local Maxima 1 | 56 km | 1.98 | 6.273 km/s | 3.164 km/s | 0.33 | amp=0.046717692 |
| Local Maxima 2 | 47 km | 1.66 | 6.273 km/s | 3.785 km/s | 0.21 | amp=0.042820953 |
| Local Maxima 3 | 28 km | 2.05 | 6.273 km/s | 3.064 km/s | 0.34 | amp=0.04002656 |
| Local Maxima 4 | 58 km | 1.97 | 6.273 km/s | 3.18 km/s | 0.33 | amp=0.030386077 |
| Predicted Arrivals for vertical incidence (zero ray parameter) | |
| Ps | 4.92 SECOND |
| PpPs | 14.00 SECOND |
| PsPs/PpSs | 18.92 SECOND |
Events Processed for this Station
Download zip of receiver functions as SAC
Plot maxima for each earthquake.
Events Used in the Stack
(9 events)| Radial Match | Distance | Baz | FERegion | Time | Lat/Lon | Depth | Magnitude |
| 96.265854 | 73.4 deg | 325.002 deg | Kamchatka Peninsula, Russia | 2016/01/30 03:25:10 UTC | (54.0, 158.5) | 161 km | 7.2 MWW, 7.0 MI, 7.2 MWB |
| 94.022995 | 51.4 deg | 315.225 deg | Alaska Peninsula | 2023/07/16 06:48:21 UTC | (54.5, -160.8) | 21 km | 7.3 Mi |
| 92.853096 | 52.7 deg | 161.318 deg | Near Coast Of Peru | 2018/01/14 09:18:45 UTC | (-15.8, -74.7) | 36 km | 7.1 mww |
| 89.54415 | 67.2 deg | 162.488 deg | Near Coast Of Central Chile | 2019/01/20 01:32:51 UTC | (-30.1, -71.4) | 53 km | 6.7 mww |
| 88.30239 | 45.2 deg | 336.247 deg | Northern Alaska | 2018/08/12 21:15:01 UTC | (69.5, -144.4) | 1.7 km | 6.0 Mww |
| 82.24116 | 47.2 deg | 60.262 deg | Northern Mid-Atlantic Ridge | 2021/03/28 23:01:46 UTC | (43.6, -28.8) | 10 km | 5.8 Mww |
| 81.51163 | 33.1 deg | 311.652 deg | Queen Charlotte Islands Region | 2019/07/04 04:30:44 UTC | (51.2, -130.5) | 10 km | 6.2 Mww |
| 81.153404 | 44.9 deg | 325.961 deg | Central Alaska | 2021/05/31 06:59:54 UTC | (62.4, -148.3) | 44 km | 6.1 Mww |
| 80.94884 | 85.4 deg | 106.024 deg | Ascension Island Region | 2014/05/16 21:11:29 UTC | (-10.4, -13.2) | 12 km | 4.9 MW |
Losers
(86 events)| Radial Match | Distance | Baz | FERegion | Time | Lat/Lon | Depth | Magnitude | Reason |
| 96.25686 | 64.1 deg | 316.329 deg | Rat Islands, Aleutian Islands | 2014/06/29 08:54:45 UTC | (51.8, 178.5) | 94 km | 4.8 mb | |
| 94.11197 | 33.4 deg | 157.125 deg | Near West Coast Of Colombia | 2014/08/03 09:38:06 UTC | (3.6, -77.7) | 62 km | 5.2 mb, 5.0 Mwr | |
| 92.01276 | 34.6 deg | 127.724 deg | Near Coast Of Venezuela | 2018/08/21 21:31:46 UTC | (10.9, -62.9) | 154 km | 7.3 Mww | |
| 89.85126 | 68.6 deg | 163.558 deg | Off Coast Of Central Chile | 2015/09/17 01:33:03 UTC | (-31.7, -72.1) | 15 km | 5.6 MB | |
| 78.84495 | 38.0 deg | 164.805 deg | Near Coast Of Ecuador | 2019/03/31 07:04:04 UTC | (-2.0, -80.8) | 19 km | 6.2 Mww | |
| 74.79164 | 51.0 deg | 29.44 deg | Iceland Region | 2020/06/21 19:07:55 UTC | (66.4, -18.7) | 10 km | 6.0 mww | |
| 71.8894 | 60.3 deg | 156.908 deg | Chile-Bolivia Border Region | 2019/10/06 10:40:55 UTC | (-21.9, -68.6) | 112 km | 5.9 Mww | |
| 71.136024 | 34.8 deg | 151.118 deg | Colombia | 2019/12/24 19:03:52 UTC | (3.5, -74.0) | 11 km | 6.0 Mww | |
| 70.76464 | 68.7 deg | 163.47 deg | Near Coast Of Central Chile | 2015/09/16 23:38:05 UTC | (-31.8, -72.0) | 35 km | 5.7 MB | |
| 70.26694 | 62.0 deg | 315.481 deg | Andreanof Islands, Aleutian Is. | 2020/01/23 05:53:03 UTC | (51.9, -177.8) | 10 km | 6.2 Mw | |
| 69.91233 | 65.8 deg | 203.876 deg | Easter Island Region | 2014/09/06 07:48:33 UTC | (-26.8, -114.5) | 10 km | 5.9 MWW, 5.8 MWC | |
| 68.66273 | 81.8 deg | 321.803 deg | Kuril Islands | 2021/07/13 00:30:16 UTC | (46.2, 151.7) | 33 km | 5.6 Mww | |
| 68.52004 | 60.4 deg | 158.918 deg | Near Coast Of Northern Chile | 2014/12/03 09:38:36 UTC | (-22.6, -70.3) | 56 km | 5.1 MW, 5.4 mb, 5.1 Mwr, 5.2 Mww, 5.2 ML | |
| 68.28911 | 69.8 deg | 323.924 deg | Komandorskiye Ostrova Region | 2016/11/24 22:31:01 UTC | (55.2, 164.6) | 38 km | 5.5 MB | |
| 68.25713 | 51.5 deg | 31.808 deg | Iceland | 2014/09/07 07:07:59 UTC | (64.5, -17.4) | 5.0 km | 5.5 MWW, 5.3 MWB, 5.6 MWC | |
| 65.43187 | 41.3 deg | 201.916 deg | Central East Pacific Rise | 2020/09/21 13:37:15 UTC | (-4.1, -104.4) | 10 km | 5.9 Mww | |
| 65.28202 | 89.0 deg | 324.318 deg | Hokkaido, Japan Region | 2015/08/27 03:23:13 UTC | (42.7, 142.2) | 131 km | 4.5 mb | |
| 65.27398 | 51.5 deg | 31.645 deg | Iceland | 2014/10/25 01:48:39 UTC | (64.7, -17.4) | 10 km | 5.0 MW | |
| 64.99411 | 57.5 deg | 157.605 deg | Near Coast Of Northern Chile | 2014/04/01 23:59:57 UTC | (-19.5, -70.2) | 22 km | 5.8 MB | |
| 64.50076 | 56.2 deg | 314.226 deg | Fox Islands, Aleutian Islands | 2020/11/30 04:59:09 UTC | (52.7, -168.4) | 31 km | 5.5 Mww | |
| 64.0211 | 49.2 deg | 330.537 deg | Northern Alaska | 2019/10/18 00:58:28 UTC | (66.3, -157.2) | 4.4 km | 5.4 mww | |
| 63.85013 | 66.4 deg | 162.232 deg | Near Coast Of Central Chile | 2015/03/05 21:30:32 UTC | (-29.2, -71.4) | 41 km | 5.2 MW | |
| 63.7964 | 58.6 deg | 158.605 deg | Near Coast Of Northern Chile | 2014/04/14 05:56:20 UTC | (-20.7, -70.7) | 30 km | 5.3 MW | |
| 63.656673 | 70.4 deg | 199.189 deg | Southern East Pacific Rise | 2014/10/09 08:14:23 UTC | (-32.7, -111.6) | 10 km | 5.6 MB | |
| 62.94869 | 32.6 deg | 310.638 deg | Vancouver Island, Canada Region | 2019/12/25 03:36:02 UTC | (50.6, -130.0) | 10 km | 6.3 mww | |
| 62.757477 | 92.0 deg | 322.023 deg | Near East Coast Of Honshu, Japan | 2020/04/19 20:39:05 UTC | (38.9, 141.9) | 38 km | 6.3 mww | |
| 62.471237 | 73.8 deg | 166.513 deg | Near Coast Of Central Chile | 2022/11/13 02:24:57 UTC | (-37.5, -73.7) | 18 km | 6.2 mww | |
| 61.973618 | 57.6 deg | 158.519 deg | Near Coast Of Northern Chile | 2014/06/20 20:22:28 UTC | (-19.8, -70.9) | 16 km | 5.6 MB | |
| 61.77651 | 42.4 deg | 155.805 deg | Peru-Brazil Border Region | 2019/01/08 10:00:09 UTC | (-4.6, -74.0) | 10 km | 5.1 Mww | |
| 60.269093 | 76.6 deg | 322.944 deg | Kuril Islands | 2014/04/07 09:34:49 UTC | (50.4, 156.3) | 85 km | 5.2 MW | |
| 59.74105 | 90.5 deg | 321.672 deg | Off East Coast Of Honshu, Japan | 2015/02/20 04:25:24 UTC | (39.8, 143.6) | 14 km | 6.3 MWP | |
| 59.370533 | 83.4 deg | 103.878 deg | Ascension Island Region | 2016/06/10 09:26:53 UTC | (-7.5, -13.6) | 10 km | 5.5 MWP | |
| 59.188755 | 68.9 deg | 163.149 deg | Near Coast Of Central Chile | 2015/09/16 23:03:56 UTC | (-31.8, -71.6) | 10 km | 6.1 MB | |
| 59.07221 | 92.3 deg | 41.294 deg | Turkey | 2015/07/29 22:00:55 UTC | (36.5, 35.0) | 32 km | 5.0 MW | |
| 58.808857 | 51.1 deg | 29.337 deg | Iceland Region | 2020/06/20 15:05:11 UTC | (66.5, -18.4) | 10 km | 5.4 Mww | |
| 58.726986 | 97.0 deg | 249.418 deg | Tonga Islands | 2015/06/12 02:36:24 UTC | (-21.0, -173.9) | 16 km | 5.1 MW | |
| 58.672882 | 31.4 deg | 144.019 deg | Venezuela | 2015/02/05 04:21:50 UTC | (8.3, -72.1) | 22 km | 5.3 MW | |
| 58.65536 | 47.4 deg | 205.261 deg | Central East Pacific Rise | 2015/11/11 06:26:33 UTC | (-9.1, -108.6) | 10 km | 5.6 mwb | |
| 58.009693 | 52.6 deg | 159.615 deg | Southern Peru | 2014/10/13 15:14:27 UTC | (-15.3, -73.4) | 92 km | 5.4 MW | |
| 57.813534 | 86.6 deg | 326.423 deg | Hokkaido, Japan Region | 2022/07/02 01:59:45 UTC | (45.9, 142.1) | 322 km | 5.8 mww | |
| 57.098186 | 57.5 deg | 158.336 deg | Near Coast Of Northern Chile | 2014/04/02 00:06:44 UTC | (-19.6, -70.8) | 10 km | 5.7 MB | |
| 57.097805 | 36.3 deg | 163.999 deg | Near Coast Of Ecuador | 2022/08/21 10:28:00 UTC | (-0.2, -80.7) | 10 km | 5.5 mww | |
| 56.89328 | 33.8 deg | 171.249 deg | Off Coast Of Ecuador | 2018/09/03 23:37:18 UTC | (1.5, -85.2) | 10 km | 5.9 Mww | |
| 55.83131 | 65.7 deg | 203.928 deg | Easter Island Region | 2014/07/14 05:44:16 UTC | (-26.7, -114.5) | 15 km | 5.5 MW, 5.4 mB, 5.3 Ms, 5.0 Ms7 | |
| 55.743004 | 37.8 deg | 116.771 deg | North Atlantic Ocean | 2016/04/20 10:51:39 UTC | (13.2, -55.9) | 10 km | 5.8 MB | |
| 55.73094 | 73.2 deg | 323.958 deg | Near East Coast Of Kamchatka | 2015/09/17 08:58:44 UTC | (53.3, 159.7) | 69 km | 5.5 MB | |
| 55.556618 | 63.0 deg | 314.99 deg | Andreanof Islands, Aleutian Is. | 2021/09/24 07:02:28 UTC | (51.1, -179.0) | 18 km | 5.5 Mww | |
| 55.478367 | 56.1 deg | 158.256 deg | Off Coast Of Northern Chile | 2015/06/01 11:57:17 UTC | (-18.3, -71.2) | 26 km | 4.7 Mww | |
| 55.352802 | 69.7 deg | 324.145 deg | Komandorskiye Ostrova Region | 2018/12/24 12:41:19 UTC | (55.4, 164.4) | 10 km | 6.1 Mww | |
| 55.319862 | 77.4 deg | 166.136 deg | Central Chile | 2019/09/26 16:36:18 UTC | (-40.8, -72.2) | 130 km | 6.1 Mww | |
| 55.003082 | 68.0 deg | 161.787 deg | Chile-Argentina Border Region | 2014/07/13 07:18:25 UTC | (-30.6, -70.5) | 91 km | 5.4 MW, 5.2 mb | |
| 54.567783 | 93.8 deg | 321.383 deg | Near East Coast Of Honshu, Japan | 2014/06/15 20:14:50 UTC | (37.1, 141.1) | 40 km | 5.6 MB | |
| 54.42688 | 43.1 deg | 47.955 deg | Reykjanes Ridge | 2015/02/15 04:36:35 UTC | (52.7, -33.5) | 10 km | 5.0 MW | |
| 54.26217 | 48.5 deg | 154.625 deg | Peru-Brazil Border Region | 2015/11/24 22:50:53 UTC | (-10.1, -71.1) | 595 km | 5.9 MB | |
| 53.40044 | 69.4 deg | 159.931 deg | San Juan Province, Argentina | 2022/04/01 11:28:04 UTC | (-31.4, -68.0) | 112 km | 5.2 Mww | |
| 53.2841 | 61.6 deg | 155.436 deg | Jujuy Province, Argentina | 2015/02/24 05:13:51 UTC | (-22.7, -66.8) | 204 km | 5.3 MW | |
| 53.16225 | 69.4 deg | 323.351 deg | Komandorskiye Ostrova Region | 2014/05/31 06:16:56 UTC | (55.0, 165.7) | 20 km | 5.5 MW | |
| 52.714302 | 71.6 deg | 190.941 deg | Southeast Of Easter Island | 2020/05/14 05:55:21 UTC | (-35.8, -102.9) | 10 km | 5.7 Mww | |
| 52.296207 | 87.5 deg | 322.728 deg | Hokkaido, Japan Region | 2023/02/25 13:27:42 UTC | (42.8, 145.1) | 43 km | 6.1 Mww | |
| 51.989616 | 41.2 deg | 175.21 deg | Southeast Of Galapagos Islands | 2014/12/02 05:26:53 UTC | (-6.2, -86.9) | 574 km | 5.5 MW | |
| 51.846695 | 51.5 deg | 31.628 deg | Iceland | 2014/09/06 05:40:51 UTC | (64.7, -17.5) | 3.7 km | 5.1 MW | |
| 51.09777 | 59.4 deg | 157.334 deg | Northern Chile | 2017/07/22 06:29:50 UTC | (-21.2, -69.3) | 49 km | 5.3 Mww | |
| 50.881844 | 58.0 deg | 158.467 deg | Near Coast Of Northern Chile | 2014/05/05 11:21:19 UTC | (-20.2, -70.7) | 24 km | 5.4 MW | |
| 49.562153 | 34.8 deg | 127.498 deg | Near Coast Of Venezuela | 2018/06/23 01:54:42 UTC | (10.8, -62.6) | 106 km | 5.1 Mww | |
| 49.43891 | 68.5 deg | 162.846 deg | Near Coast Of Central Chile | 2015/12/07 07:51:11 UTC | (-31.4, -71.4) | 48 km | 5.6 MB | |
| 48.986206 | 92.8 deg | 254.009 deg | Samoa Islands Region | 2018/06/02 11:53:06 UTC | (-14.8, -173.1) | 50 km | 5.6 mb | |
| 48.909416 | 83.6 deg | 45.605 deg | Aegean Sea | 2014/08/22 04:27:55 UTC | (39.5, 23.3) | 10 km | 5.2 MW | |
| 46.537544 | 57.7 deg | 158.318 deg | Near Coast Of Northern Chile | 2014/12/03 02:29:03 UTC | (-19.8, -70.7) | 29 km | 4.9 MW, 4.3 mb, 4.4 mb1, 4.3 mb1mx, 4.4 mbtmp, 4.0 ML, 4.1 MS, 4.1 Ms1, 3.8 ms1mx | |
| 45.966618 | 61.5 deg | 205.222 deg | Easter Island Region | 2016/01/23 10:08:01 UTC | (-22.4, -114.0) | 10 km | 5.5 MB | |
| 45.47515 | 96.7 deg | 319.193 deg | Southeast Of Honshu, Japan | 2020/10/03 09:31:35 UTC | (33.5, 140.9) | 59 km | 5.5 mww | |
| 44.09331 | 42.6 deg | 160.133 deg | Northern Peru | 2020/05/07 00:49:10 UTC | (-5.7, -76.7) | 24 km | 5.3 Mww | |
| 43.372738 | 49.7 deg | 316.25 deg | Alaska Peninsula | 2020/08/09 14:57:52 UTC | (55.5, -158.1) | 0.0 km | 5.6 ml | |
| 43.32865 | 65.7 deg | 203.902 deg | Easter Island Region | 2014/09/05 09:19:23 UTC | (-26.7, -114.5) | 10 km | 4.9 MW | |
| 42.32676 | 81.1 deg | 320.64 deg | East Of Kuril Islands | 2021/09/29 08:37:05 UTC | (45.8, 153.5) | 401 km | 6.5 Mi | |
| 42.085438 | 52.3 deg | 206.486 deg | Central East Pacific Rise | 2019/09/26 19:00:41 UTC | (-13.4, -111.4) | 10 km | 5.5 Mwb | |
| 41.676514 | 68.8 deg | 104.432 deg | Central Mid-Atlantic Ridge | 2017/10/06 02:03:48 UTC | (1.0, -25.5) | 10 km | 5.5 Mww | |
| 41.421528 | 56.5 deg | 158.237 deg | Off Coast Of Northern Chile | 2021/12/07 09:39:38 UTC | (-18.6, -71.1) | 31 km | 5.6 Mww | |
| 40.868404 | 85.0 deg | 322.368 deg | Kuril Islands | 2015/07/10 03:15:37 UTC | (44.3, 147.8) | 93 km | 4.3 mb | |
| 40.654427 | 87.9 deg | 323.157 deg | Hokkaido, Japan Region | 2015/02/28 00:40:43 UTC | (42.8, 144.4) | 100 km | 4.6 mb | |
| 37.33024 | 80.7 deg | 321.162 deg | Kuril Islands | 2014/01/20 00:56:36 UTC | (46.4, 153.4) | 43 km | 4.8 mb | |
| 34.14974 | 81.7 deg | 326.403 deg | Sea Of Okhotsk | 2021/09/03 10:14:26 UTC | (49.5, 147.0) | 582 km | 5.8 Mww | |
| 32.182896 | 56.2 deg | 158.343 deg | Off Coast Of Northern Chile | 2021/07/08 10:30:38 UTC | (-18.5, -71.2) | 55 km | 5.2 Mww | |
| 32.15177 | 66.1 deg | 106.768 deg | Central Mid-Atlantic Ridge | 2016/07/24 14:10:51 UTC | (0.9, -29.0) | 10 km | 5.7 mwb | |
| 31.233803 | 92.9 deg | 37.936 deg | Turkey | 2020/08/04 09:37:37 UTC | (38.2, 38.7) | 10 km | 5.5 mww | |
| 29.254622 | 58.2 deg | 313.949 deg | Fox Islands, Aleutian Islands | 2014/06/20 12:16:46 UTC | (51.9, -171.4) | 26 km | 5.6 MB, 5.0 ML, 5.1 ML, 5.3 MWB | |
| 27.93457 | 79.6 deg | 168.531 deg | Southern Chile | 2016/12/25 14:32:13 UTC | (-43.5, -74.5) | 17 km | 5.6 mb |
