| Author | |
| Date and time | 2011-02-18 04:59:49.8 UTC |
| Latitude | 35.251 |
| Longitude | -92.409 |
| Depth | 5 |
| Magnitude | 4.0 mb |
| Region | ARKANSAS |
| Latest update | 2016-04-19 07:23:05.0 UTC |
| rms | -- s |
| N° phases used for the localisation | 65 |
| N° stations used for the localisation | 169 |
| Gap | 37.0 ° |
| 95% confidence ellipse | |
| semi major | -- |
| semi minor | -- |
| Azimuth | -- ° |
| Location Type | manual |
Download data for this event
Note: links can take up to 20 minutes from the earthquake to become available
| Operating network | code | Distance° | EvAz | A/M | Phase | Pick time | Residual | T | Reporting network |
|---|---|---|---|---|---|---|---|---|---|
| UALR | 0.480 | 174 | A | Pg | 2011-02-18 04:59:59.3 | 0.3 | T | NEIR | |
| UALR | 0.480 | 174 | A | Sg | 2011-02-18 05:00:05.6 | 0.3 | T | NEIR | |
| MIAR | 1.190 | 234 | A | Pg | 2011-02-18 05:00:11.9 | -0.7 | T | NEIR | |
| MIAR | 1.190 | 234 | A | Sg | 2011-02-18 05:00:27.5 | -0.5 | T | NEIR | |
| HBAR | 1.460 | 78 | A | Pg | 2011-02-18 05:00:16.2 | -1.6 | T | NEIR | |
| QUAR | 1.490 | 74 | A | Pg | 2011-02-18 05:00:16.9 | -1.4 | T | NEIR | |
| SFTN | 1.960 | 86 | A | Pn | 2011-02-18 05:00:23.4 | -0.2 | T | NEIR | |
| SFTN | 1.960 | 86 | A | Sn | 2011-02-18 05:00:49.7 | 1.1 | T | NEIR | |
| MET | 2.030 | 93 | A | Pn | 2011-02-18 05:00:23.8 | -0.9 | T | NEIR | |
| MET | 2.030 | 93 | A | Pg | 2011-02-18 05:00:28.0 | -0.8 | T | NEIR | |
| MET | 2.030 | 93 | A | Sn | 2011-02-18 05:00:49.4 | -1 | T | NEIR | |
| MET | 2.030 | 93 | A | Sb | 2011-02-18 05:00:52.4 | -0.4 | T | NEIR | |
| MET | 2.030 | 93 | A | Sg | 2011-02-18 05:00:54.2 | -0.9 | T | NEIR | |
| DLAR | 2.040 | 73 | A | Pn | 2011-02-18 05:00:25.8 | 1.1 | T | NEIR | |
| DLAR | 2.040 | 73 | A | Sn | 2011-02-18 05:00:53.4 | 2.9 | T | NEIR | |
| GNAR | 2.070 | 69 | A | Pn | 2011-02-18 05:00:26.1 | 0.9 | T | NEIR | |
| GNAR | 2.070 | 69 | A | Sn | 2011-02-18 05:00:53.6 | 2.2 | T | NEIR | |
| PBMO | 2.210 | 46 | A | Pn | 2011-02-18 05:00:27.8 | 0.6 | T | NEIR | |
| PVMO | 2.490 | 61 | A | Pn | 2011-02-18 05:00:30.5 | -0.5 | T | NEIR | |
| PVMO | 2.490 | 61 | A | Sn | 2011-02-18 05:01:02.1 | 0.4 | T | NEIR | |
| PVMO | 2.490 | 61 | A | Sg | 2011-02-18 05:01:08.0 | -1.7 | T | NEIR | |
| CWPT | 2.390 | 71 | A | Pn | 2011-02-18 05:00:30.6 | 1 | T | NEIR | |
| EBZ | 2.510 | 92 | A | Pn | 2011-02-18 05:00:31.2 | -0 | T | NEIR | |
| WADM | 2.400 | 62 | A | Pn | 2011-02-18 05:00:32.0 | 2.3 | T | NEIR | |
| WADM | 2.400 | 62 | A | Sn | 2011-02-18 05:01:05.0 | 5.6 | T | NEIR | |
| OXF | 2.570 | 106 | A | Pn | 2011-02-18 05:00:32.1 | -0 | T | NEIR | |
| OXF | 2.570 | 106 | A | Sn | 2011-02-18 05:01:03.5 | -0.3 | T | NEIR | |
| HALT | 2.590 | 74 | A | Pn | 2011-02-18 05:00:32.3 | 0 | T | NEIR | |
| PARMO | 2.580 | 56 | A | Pn | 2011-02-18 05:00:32.7 | 0.5 | T | NEIR | |
| PARMO | 2.580 | 56 | A | Pb | 2011-02-18 05:00:34.8 | -1.7 | T | NEIR | |
| RELT | 2.650 | 72 | A | Pn | 2011-02-18 05:00:34.0 | 0.9 | T | NEIR | |
| RELT | 2.650 | 72 | A | Pb | 2011-02-18 05:00:36.9 | -0.8 | T | NEIR | |
| GLAT | 2.730 | 67 | A | Pn | 2011-02-18 05:00:35.0 | 0.6 | T | NEIR | |
| GLST | 2.730 | 67 | A | Pn | 2011-02-18 05:00:35.1 | 0.7 | T | NEIR | |
| TUL1 | 2.840 | 284 | A | Pn | 2011-02-18 05:00:37.0 | 1.3 | T | NEIR | |
| TUL1 | 2.840 | 284 | A | Sg | 2011-02-18 05:01:19.4 | -1.5 | T | NEIR | |
| UTMT | 3.080 | 68 | A | Pn | 2011-02-18 05:00:38.7 | -0.3 | T | NEIR | |
| UTMT | 3.080 | 68 | A | Pg | 2011-02-18 05:00:47.2 | -1.6 | T | NEIR | |
| UTMT | 3.080 | 68 | A | Sg | 2011-02-18 05:01:26.4 | -2.3 | T | NEIR | |
| VBMS | 3.410 | 152 | A | Pn | 2011-02-18 05:00:43.8 | 0.2 | T | NEIR | |
| SIUC | 3.560 | 45 | A | Pn | 2011-02-18 05:00:46.7 | 1.1 | T | NEIR | |
| SIUC | 3.560 | 45 | A | Sn | 2011-02-18 05:01:27.9 | -0.2 | T | NEIR | |
| SIUC | 3.560 | 45 | A | Sg | 2011-02-18 05:01:40.8 | -3.3 | T | NEIR | |
| SLM | 3.800 | 27 | A | Pn | 2011-02-18 05:00:48.8 | -0.2 | T | NEIR | |
| SLM | 3.800 | 27 | A | Pg | 2011-02-18 05:00:58.7 | -3.9 | T | NEIR | |
| SLM | 3.800 | 27 | A | Sn | 2011-02-18 05:01:33.6 | -0.5 | T | NEIR | |
| SLM | 3.800 | 27 | A | Sg | 2011-02-18 05:01:46.9 | -5 | T | NEIR | |
| NATX | 3.960 | 209 | A | Pn | 2011-02-18 05:00:51.3 | 0.2 | T | NEIR | |
| NATX | 3.960 | 209 | A | Sn | 2011-02-18 05:01:37.7 | -0.3 | T | NEIR | |
| V34A | 4.210 | 279 | A | Pn | 2011-02-18 05:00:55.6 | 1 | T | NEIR | |
| V34A | 4.210 | 279 | A | Pb | 2011-02-18 05:01:04.2 | -0.1 | T | NEIR | |
| V34A | 4.210 | 279 | A | Sn | 2011-02-18 05:01:44.4 | 0.2 | T | NEIR | |
| V34A | 4.210 | 279 | A | Sg | 2011-02-18 05:02:01.7 | -3.2 | T | NEIR | |
| U34A | 4.330 | 287 | A | Pn | 2011-02-18 05:00:57.0 | 0.8 | T | NEIR | |
| U34A | 4.330 | 287 | A | Pb | 2011-02-18 05:01:06.3 | -0.1 | T | NEIR | |
| U34A | 4.330 | 287 | A | Pg | 2011-02-18 05:01:11.7 | -1.1 | T | NEIR | |
| U34A | 4.330 | 287 | A | Sn | 2011-02-18 05:01:46.8 | -0.3 | T | NEIR | |
| U34A | 4.330 | 287 | A | Sg | 2011-02-18 05:02:05.4 | -3.5 | T | NEIR | |
| W34A | 4.390 | 271 | A | Pn | 2011-02-18 05:00:58.3 | 1.1 | T | NEIR | |
| W34A | 4.390 | 271 | A | Pg | 2011-02-18 05:01:11.1 | -2.8 | T | NEIR | |
| W34A | 4.390 | 271 | A | Sn | 2011-02-18 05:01:47.4 | -1.3 | T | NEIR | |
| W34A | 4.390 | 271 | A | Sg | 2011-02-18 05:02:08.4 | -2.5 | T | NEIR | |
| USIN | 4.680 | 53 | A | Pn | 2011-02-18 05:01:01.6 | 0.6 | T | NEIR | |
| USIN | 4.680 | 53 | A | Pg | 2011-02-18 05:01:15.6 | -3.9 | T | NEIR | |
| USIN | 4.680 | 53 | A | Sn | 2011-02-18 05:01:56.6 | 0.9 | T | NEIR | |
| USIN | 4.680 | 53 | A | Sg | 2011-02-18 05:02:13.7 | -6.4 | T | NEIR | |
| OLIL | 4.900 | 44 | A | Pn | 2011-02-18 05:01:03.5 | -0.6 | T | NEIR | |
| OLIL | 4.900 | 44 | A | Pg | 2011-02-18 05:01:18.5 | -5.1 | T | NEIR | |
| OLIL | 4.900 | 44 | A | Sg | 2011-02-18 05:02:22.6 | -4.5 | T | NEIR | |
| LRAL | 5.000 | 115 | A | Pn | 2011-02-18 05:01:05.2 | -0.3 | T | NEIR | |
| LRAL | 5.000 | 115 | A | Sn | 2011-02-18 05:02:03.0 | -0.8 | T | NEIR | |
| LRAL | 5.000 | 115 | A | Sg | 2011-02-18 05:02:22.4 | -8.1 | T | NEIR | |
| KSU1 | 5.100 | 320 | A | Pn | 2011-02-18 05:01:07.2 | 0.3 | T | NEIR | |
| KSU1 | 5.100 | 320 | A | Pg | 2011-02-18 05:01:23.3 | -4.2 | T | NEIR | |
| KSU1 | 5.100 | 320 | A | Sg | 2011-02-18 05:02:28.9 | -4.7 | T | NEIR | |
| WMOK | 5.260 | 266 | A | Pn | 2011-02-18 05:01:09.6 | 0.5 | T | NEIR | |
| WMOK | 5.260 | 266 | A | Pg | 2011-02-18 05:01:24.9 | -5.6 | T | NEIR | |
| WMOK | 5.260 | 266 | A | Sn | 2011-02-18 05:02:09.3 | -0.8 | T | NEIR | |
| WMOK | 5.260 | 266 | A | Sg | 2011-02-18 05:02:33.7 | -4.9 | T | NEIR | |
| SWET | 5.300 | 89 | A | Pn | 2011-02-18 05:01:09.6 | -0.1 | T | NEIR | |
| WHTX | 5.320 | 234 | A | Pn | 2011-02-18 05:01:10.8 | 0.9 | T | NEIR | |
| WCI | 5.740 | 57 | A | Pn | 2011-02-18 05:01:15.8 | 0.2 | T | NEIR | |
| WCI | 5.740 | 57 | A | Pg | 2011-02-18 05:01:33.9 | -5.8 | T | NEIR | |
| WCI | 5.740 | 57 | A | Sn | 2011-02-18 05:02:22.1 | 0.1 | T | NEIR | |
| WCI | 5.740 | 57 | A | Sb | 2011-02-18 05:02:39.0 | -0.5 | T | NEIR | |
| WCI | 5.740 | 57 | A | Sg | 2011-02-18 05:02:47.2 | -6.9 | T | NEIR | |
| HDIL | 5.840 | 24 | A | Pn | 2011-02-18 05:01:16.7 | -0.3 | T | NEIR | |
| HDIL | 5.840 | 24 | A | Pg | 2011-02-18 05:01:35.6 | -6 | T | NEIR | |
| HDIL | 5.840 | 24 | A | Sn | 2011-02-18 05:02:23.8 | -0.6 | T | NEIR | |
| HDIL | 5.840 | 24 | A | Sg | 2011-02-18 05:02:49.7 | -7.7 | T | NEIR | |
| BLO | 6.110 | 48 | A | Pn | 2011-02-18 05:01:20.7 | -0.1 | T | NEIR | |
| BLO | 6.110 | 48 | A | Sn | 2011-02-18 05:02:28.1 | -3 | T | NEIR | |
| BLO | 6.110 | 48 | A | Sg | 2011-02-18 05:02:57.2 | -8.9 | T | NEIR | |
| CPCT | 6.450 | 86 | A | Pn | 2011-02-18 05:01:25.0 | -0.4 | T | NEIR | |
| ABTX | 6.560 | 248 | A | Pn | 2011-02-18 05:01:26.8 | -0.1 | T | NEIR | |
| ABTX | 6.560 | 248 | A | Pg | 2011-02-18 05:01:50.9 | -4.5 | T | NEIR | |
| ABTX | 6.560 | 248 | A | Sn | 2011-02-18 05:02:42.3 | 0.1 | T | NEIR | |
| ABTX | 6.560 | 248 | A | Sg | 2011-02-18 05:03:14.1 | -6.3 | T | NEIR | |
| SFIN | 6.620 | 38 | A | Pn | 2011-02-18 05:01:27.9 | 0.2 | T | NEIR | |
| SFIN | 6.620 | 38 | A | Sn | 2011-02-18 05:02:44.2 | 0.6 | T | NEIR | |
| SFIN | 6.620 | 38 | A | Sg | 2011-02-18 05:03:12.4 | -10.1 | T | NEIR | |
| SCIA | 6.680 | 355 | A | Pn | 2011-02-18 05:01:28.3 | -0.2 | T | NEIR | |
| SCIA | 6.680 | 355 | A | Pg | 2011-02-18 05:01:48.9 | -8.8 | T | NEIR | |
| SCIA | 6.680 | 355 | A | Sg | 2011-02-18 05:03:17.9 | -6.2 | T | NEIR | |
| CBKS | 6.850 | 303 | A | Pn | 2011-02-18 05:01:31.5 | 0.5 | T | NEIR | |
| CBKS | 6.850 | 303 | A | Pg | 2011-02-18 05:01:55.8 | -5.3 | T | NEIR | |
| CBKS | 6.850 | 303 | A | Sg | 2011-02-18 05:03:27.1 | -2.8 | T | NEIR | |
| TKL | 7.060 | 84 | A | Pn | 2011-02-18 05:01:33.5 | -0.3 | T | NEIR | |
| TZTN | 7.310 | 77 | A | Pn | 2011-02-18 05:01:38.0 | 0.8 | T | NEIR | |
| TZTN | 7.310 | 77 | A | Sn | 2011-02-18 05:03:00.0 | -0.6 | T | NEIR | |
| TZTN | 7.310 | 77 | A | Sg | 2011-02-18 05:03:38.9 | -5.4 | T | NEIR | |
| GOGA | 7.620 | 101 | A | Pn | 2011-02-18 05:01:40.8 | -0.7 | T | NEIR | |
| GOGA | 7.620 | 101 | A | Pg | 2011-02-18 05:02:06.8 | -8.9 | T | NEIR | |
| GOGA | 7.620 | 101 | A | Sg | 2011-02-18 05:03:45.2 | -9.3 | T | NEIR | |
| BGNE | 7.620 | 325 | A | Pn | 2011-02-18 05:01:41.1 | -0.5 | T | NEIR | |
| BGNE | 7.620 | 325 | A | Pg | 2011-02-18 05:02:08.9 | -6.9 | T | NEIR | |
| BGNE | 7.620 | 325 | A | Sg | 2011-02-18 05:03:48.3 | -6.2 | T | NEIR | |
| AMTX | 7.610 | 270 | A | Pn | 2011-02-18 05:01:41.5 | 0 | T | NEIR | |
| AMTX | 7.610 | 270 | A | Pg | 2011-02-18 05:02:09.9 | -5.7 | T | NEIR | |
| AMTX | 7.610 | 270 | A | Sn | 2011-02-18 05:03:06.7 | -1.5 | T | NEIR | |
| JFWS | 7.830 | 12 | A | Pn | 2011-02-18 05:01:43.6 | -0.8 | T | NEIR | |
| JFWS | 7.830 | 12 | A | Pg | 2011-02-18 05:02:12.0 | -7.8 | T | NEIR | |
| JFWS | 7.830 | 12 | A | Sg | 2011-02-18 05:03:51.2 | -10.1 | T | NEIR | |
| JCT | 7.830 | 235 | A | Pn | 2011-02-18 05:01:43.8 | -0.6 | T | NEIR | |
| JCT | 7.830 | 235 | A | Sn | 2011-02-18 05:03:12.5 | -1 | T | NEIR | |
| TIGA | 8.300 | 115 | A | Pn | 2011-02-18 05:01:51.2 | 0.4 | T | NEIR | |
| TIGA | 8.300 | 115 | A | Pg | 2011-02-18 05:02:25.7 | -3 | T | NEIR | |
| TIGA | 8.300 | 115 | A | Sn | 2011-02-18 05:03:23.1 | -1.8 | T | NEIR | |
| TIGA | 8.300 | 115 | A | Sg | 2011-02-18 05:04:04.6 | -11.7 | T | NEIR | |
| MSTX | 8.640 | 264 | A | Pn | 2011-02-18 05:01:55.2 | -0.4 | T | NEIR | |
| ACSO | 8.970 | 54 | A | Pn | 2011-02-18 05:01:58.7 | -1.3 | T | NEIR | |
| ACSO | 8.970 | 54 | A | Sn | 2011-02-18 05:03:33.9 | -7.4 | T | NEIR | |
| ACSO | 8.970 | 54 | A | 2011-02-18 05:04:27.9 | T | NEIR | |||
| KSCO | 8.980 | 298 | A | Pn | 2011-02-18 05:02:00.2 | -0.1 | T | NEIR | |
| KSCO | 8.980 | 298 | A | 2011-02-18 05:04:34.8 | T | NEIR | |||
| ECSD | 9.070 | 340 | A | Pn | 2011-02-18 05:02:01.0 | -0.4 | T | NEIR | |
| ECSD | 9.070 | 340 | A | Sn | 2011-02-18 05:03:42.0 | -1.9 | T | NEIR | |
| ECSD | 9.070 | 340 | A | 2011-02-18 05:04:29.9 | T | NEIR | |||
| OGNE | 9.480 | 310 | A | Pn | 2011-02-18 05:02:06.7 | -0.3 | T | NEIR | |
| OGNE | 9.480 | 310 | A | 2011-02-18 05:04:49.5 | T | NEIR | |||
| BLA | 9.880 | 75 | A | Pn | 2011-02-18 05:02:11.7 | -0.9 | T | NEIR | |
| BLA | 9.880 | 75 | A | Sn | 2011-02-18 05:04:02.0 | -1.9 | T | NEIR | |
| BLA | 9.880 | 75 | A | 2011-02-18 05:05:06.2 | T | NEIR | |||
| T25A | 9.880 | 284 | A | Pn | 2011-02-18 05:02:12.4 | -0.3 | T | NEIR | |
| SDCO | 10.830 | 287 | A | Pn | 2011-02-18 05:02:26.0 | 0.2 | T | NEIR | |
| SDCO | 10.830 | 287 | A | 2011-02-18 05:05:29.2 | T | NEIR | |||
| TX31 | 11.200 | 241 | A | Pn | 2011-02-18 05:02:29.4 | -1.3 | T | NEIR | |
| MNTX | 11.400 | 256 | A | Pn | 2011-02-18 05:02:32.4 | -0.9 | T | NEIR | |
| MNTX | 11.400 | 256 | A | Sn | 2011-02-18 05:04:36.7 | -4.4 | T | NEIR | |
| ISCO | 11.420 | 297 | A | Pn | 2011-02-18 05:02:33.9 | 0 | T | NEIR | |
| ISCO | 11.420 | 297 | A | 2011-02-18 05:05:49.5 | T | NEIR | |||
| N23A | 12.060 | 302 | A | Pn | 2011-02-18 05:02:43.5 | 1 | T | NEIR | |
| LAO | 15.450 | 322 | A | Pn | 2011-02-18 05:03:26.9 | -1.4 | T | NEIR | |
| LAO | 15.450 | 322 | A | 2011-02-18 05:07:59.7 | T | NEIR | |||
| YMS | 16.560 | 308 | A | Pn | 2011-02-18 05:03:41.2 | -1.9 | T | NEIR | |
| YMS | 16.560 | 308 | A | Sn | 2011-02-18 05:06:54.8 | 7.4 | T | NEIR | |
| YPP | 16.740 | 308 | A | Pn | 2011-02-18 05:03:50.3 | 5.1 | T | NEIR | |
| YPP | 16.740 | 308 | A | Sn | 2011-02-18 05:06:54.9 | 3.2 | T | NEIR | |
| YPP | 16.740 | 308 | A | S | 2011-02-18 05:07:00.5 | -2.5 | T | NEIR | |
| KMSC | 9.070 | 88 | A | Pn | 2011-02-18 05:04:10.5 | 100 | T | NEIR | |
| AAM | 9.800 | 42 | A | Pn | 2011-02-18 05:04:52.7 | 100 | T | NEIR | |
| NHSC | 10.360 | 98 | A | Pn | 2011-02-18 05:04:58.8 | 100 | T | NEIR | |
| COWI | 11.120 | 12 | A | Pn | 2011-02-18 05:05:36.1 | 100 | T | NEIR | |
| GLMI | 11.270 | 30 | A | Pn | 2011-02-18 05:05:43.3 | 100 | T | NEIR | |
| SSPA | 12.660 | 61 | A | Pn | 2011-02-18 05:06:24.8 | 100 | T | NEIR | |
| EYMN | 12.700 | 3 | A | Pn | 2011-02-18 05:06:25.7 | 100 | T | NEIR | |
| MVCO | 13.130 | 283 | A | Pn | 2011-02-18 05:06:40.5 | 100 | T | NEIR | |
| K22A | 13.230 | 308 | A | Pn | 2011-02-18 05:06:48.8 | 100 | T | NEIR | |
| PV01 | 13.290 | 287 | A | Pn | 2011-02-18 05:06:50.3 | 100 | T | NEIR | |
| BW06 | 15.280 | 305 | A | Pn | 2011-02-18 05:07:55.0 | 100 | T | NEIR | |
| DGMT | 15.830 | 330 | A | Pn | 2011-02-18 05:07:56.4 | 100 | T | NEIR | |
| RLMT | 16.190 | 313 | A | Pn | 2011-02-18 05:08:19.1 | 100 | T | NEIR | |
| REDW | 16.390 | 305 | A | Pn | 2011-02-18 05:08:25.1 | 100 | T | NEIR | |
| LOHW | 16.330 | 306 | A | Pn | 2011-02-18 05:08:29.3 | 100 | T | NEIR | |
| SNOW | 16.370 | 306 | A | Pn | 2011-02-18 05:08:30.2 | 100 | T | NEIR | |
| IMW | 16.670 | 307 | A | Pn | 2011-02-18 05:08:34.5 | 100 | T | NEIR | |
| FLWY | 16.590 | 308 | A | Pn | 2011-02-18 05:08:45.7 | 100 | T | NEIR |