This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.4 mb
Local datetime 2015/02/20 13:25
Universal datetime 2015/02/20 04:25
Latitude 39.93 ° ± 3 km
Longitude 143.49 ° ± 3 km
Depth 10 km (from location) ± 0.0 km

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See the seismogram of this event.

Near cities

This table shows only the most populated cities around the epicenter.
Name Distance (km) Population
Sendai  281 1.037562e+06
Akita  292 320069
Aomori  256 298394
Morioka  204 295172
Fukushima  358 294237
Hakodate  311 275730
Yamagata  331 254538
Hachinohe  178 239046
Kushiro  346 183612
Hirosaki  267 174972
Tomakomai  343 174806
Obihiro  334 173890
Sakata  333 100446
Tsuruoka  344 99820
Muroran  341 96197

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 1.32
Azimuthal gap 51.4 °
Number of stations used 45
Number of phases used 45

Webservices

The data of this event are available in various formats (QuakeML, GeoJSON and text) through the following links :

QuakeML GeoJSON Text

Phases

Network Station Phase Time Residual (s) Azimuth (°) Distance (°) Mode
II ERM P 04:25:59.97 -0.31 353.18 2.1 Automatic
IU MAJO P 04:26:44.77 -0.45 232.45 5.36 Automatic
IU YSS P 04:27:07.95 -0.29 355.93 7.04 Automatic
IU INCN P 04:28:37.82 2.45 264.8 13.37 Automatic
IU PET P 04:29:20.55 1.54 33.25 16.67 Automatic
IU MA2 P 04:29:59.57 -0.14 10.72 20.17 Automatic
IU YAK P 04:30:34.65 -1.86 343.78 23.63 Automatic
IU TATO P 04:30:35.77 -1.57 237.56 23.72 Automatic
IU ULN P 04:31:09.7 0 299.14 27.14 Automatic
II TLY P 04:31:32.7 0.23 306.69 29.7 Automatic
IU TIXI P 04:31:55.27 -1.28 351.5 32.54 Automatic
IU CHTO P 04:33:29.2 -0.61 254.37 43.59 Automatic
II KDAK P 04:33:31.67 0.47 43.86 43.72 Automatic
IU MAKZ P 04:33:33.94 -0.32 300.15 44.09 Automatic
II KURK P 04:33:42.97 -1.23 306.29 45.33 Automatic
IU COLA P 04:33:46.62 0.46 33.61 45.6 Automatic
II BRVK P 04:34:18.22 -0.39 311.07 49.75 Automatic
II KAPI P 04:34:20.72 2.76 211.58 49.98 Automatic
II AAK P 04:34:23.57 -0.28 297.02 50.43 Automatic
II NIL P 04:34:58.97 0.39 287.31 55.13 Automatic
IU POHA P 04:35:02.7 1.6 92.36 55.45 Automatic
IU KBS P 04:35:18.77 0.8 350.22 57.85 Automatic
II LVZ P 04:35:32.67 0.36 335.69 59.9 Automatic
II WRAB P 04:35:30.7 -2.88 189.87 60.47 Automatic
IU KEV P 04:35:40.37 0.09 339.27 61.06 Automatic
II PALK P 04:36:03.12 0.25 257.59 64.59 Automatic
IU MBWA P 04:36:03.12 -0.2 204.5 64.99 Automatic
IU COR P 04:36:08.67 1.01 51.59 65.16 Automatic
II MSVF P 04:36:09.87 -0.75 143.76 66.06 Automatic
II OBN P 04:36:15.85 -0.44 323.37 66.49 Automatic
II KIV P 04:36:38.92 0.62 311.19 70 Automatic
II FFC P 04:36:37.12 -1.91 33.97 70.11 Automatic
IU GNI P 04:36:45.87 1.15 306.99 71.05 Automatic
II UOSS P 04:36:51.52 -0.6 288.09 72.32 Automatic
IU SFJD P 04:36:52.97 -0.7 5.73 72.53 Automatic
II PFO P 04:37:12.67 -0.48 57.73 75.89 Automatic
IU RSSD P 04:37:14.47 -1.29 43.06 76.32 Automatic
IU NWAO P 04:37:15.37 0.44 202.42 76.8 Automatic
IU TUC P 04:37:37.67 -0.29 55.61 80.36 Automatic
II ESK P 04:37:43.92 4.42 341.54 80.61 Automatic
IU ANMO P 04:37:42.47 -0.28 51.18 81.25 Automatic
II BFO P 04:37:52.77 -0.45 331.83 83.22 Automatic
IU SLBS P 04:38:12.67 2.36 61.55 86.69 Automatic
IU CCM P 04:38:11.52 -1.98 40.06 87.3 Automatic
IU WVT P 04:38:28.12 -0.41 39.09 90.49 Automatic