This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.4 mb
Local datetime 2014/12/20 18:30
Universal datetime 2014/12/20 09:30
Latitude 37.50 ° ± 3 km
Longitude 141.43 ° ± 3 km
Depth 60 km (from location) ± 5 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
Tokyo  251 8.336599e+06
Sendai  95 1.037562e+06
Niigata  216 505272
Utsunomiya  174 449865
Iwaki  69 357309
Kōriyama  93 340560
Kawagoe  246 337931
Morioka  248 295172
Fukushima  89 294237
Maebashi  243 282711
Yamagata  130 254538
Mito  151 246538
Nagaoka  227 195318
Sakata  209 100446
Tsuruoka  193 99820

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 1.17
Azimuthal gap 44.34 °
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
IU MAJO P 09:30:42.42 -0.77 250.61 2.74 Automatic
II ERM P 09:31:09.47 -0.4 15.87 4.71 Automatic
IU YSS P 09:32:14.10 -1.44 5.52 9.51 Automatic
IU INCN P 09:32:49.92 3.46 274.41 11.73 Automatic
IU PET P 09:34:25.20 0.46 32.09 19.59 Automatic
IU TATO P 09:34:40.97 0.18 239.25 21.07 Automatic
IU MA2 P 09:34:58.97 -0.88 12.21 22.87 Automatic
IU YAK P 09:35:23.55 -1.4 347.23 25.58 Automatic
IU ULN P 09:35:38.32 -0.18 303.56 27.03 Automatic
II TLY P 09:36:04.77 0.27 310.47 29.96 Automatic
IU BILL P 09:36:34.17 -1.69 16.61 33.57 Automatic
IU TIXI P 09:36:44.77 -1.2 353.09 34.74 Automatic
IU CHTO P 09:37:41.52 -0.55 255.18 41.4 Automatic
IU MAKZ P 09:38:03.14 -0.25 301.88 43.96 Automatic
II KURK P 09:38:15.12 -0.63 307.87 45.51 Automatic
IU TARA P 09:38:20.4 -0.39 133.76 46.32 Automatic
II KDAK P 09:38:28.37 4.15 42.09 46.6 Automatic
II KAPI P 09:38:25.2 -0.64 210.17 47.06 Automatic
IU COLA P 09:38:39.87 0.81 32.34 48.51 Automatic
II AAK P 09:38:51.52 -0.09 298.14 50.13 Automatic
II BRVK P 09:38:51.37 -0.41 312.21 50.16 Automatic
II NIL P 09:39:23.17 0.37 288 54.34 Automatic
IU POHA P 09:39:43.17 1.4 89.42 57.02 Automatic
IU CTAO P 09:39:43.87 -0.27 174.64 57.77 Automatic
II WRAB P 09:39:42.42 -2.1 187.85 57.82 Automatic
II LVZ P 09:40:13.27 0.49 335.79 61.45 Automatic
IU MBWA P 09:40:12.92 -1.26 202.96 62.11 Automatic
II PALK P 09:40:19.42 0.54 257.31 62.49 Automatic
IU KEV P 09:40:21.97 0.39 339.25 62.76 Automatic
II MSVF P 09:40:35.47 1.03 141.22 65.11 Automatic
II OBN P 09:40:51.80 -0.54 323.24 67.48 Automatic
II KIV P 09:41:10.67 0.28 310.94 70.38 Automatic
IU GNI P 09:41:16.22 0.75 306.69 71.22 Automatic
II UOSS P 09:41:16.52 -0.64 287.71 71.54 Automatic
II FFC P 09:41:25.47 -0.87 32.68 73.03 Automatic
IU NWAO P 09:41:28.47 0.25 200.97 73.95 Automatic
IU SFJD P 09:41:40.32 1.92 4.84 75.1 Automatic
II PFO P 09:41:57.97 0.13 56.18 78.56 Automatic
IU RSSD P 09:42:00.82 -0.64 41.67 79.2 Automatic
IU TUC P 09:42:21.82 -0.07 54.16 83.08 Automatic
IU ANMO P 09:42:27.17 0.33 49.77 84.04 Automatic
II BFO P 09:42:29.27 -0.43 330.81 84.58 Automatic
IU CCM P 09:42:55.87 -0.83 38.77 90.2 Automatic
IU WVT P 09:43:11.32 -0.17 37.81 93.4 Automatic
IU PAB P 09:43:28.52 1.54 334.1 96.79 Automatic