This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.5 mb
Local datetime 2016/12/20 01:41
Universal datetime 2016/12/19 16:41
Latitude 37.50 ° ± 4 km
Longitude 141.46 ° ± 5 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
Tokyo  253 8.336599e+06
Sendai  95 1.037562e+06
Niigata  218 505272
Utsunomiya  177 449865
Iwaki  71 357309
Kōriyama  96 340560
Kawagoe  249 337931
Morioka  248 295172
Fukushima  91 294237
Maebashi  246 282711
Yamagata  131 254538
Mito  153 246538
Nagaoka  230 195318
Sakata  211 100446
Tsuruoka  195 99820

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 1.09
Azimuthal gap 131.7 °
Number of stations used 31
Number of phases used 31

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 16:41:57.7 -0.09 250.76 2.77 Automatic
II ERM P 16:42:24.27 0.76 15.6 4.7 Automatic
IU YSS P 16:43:29.40 -0.03 5.39 9.5 Automatic
IU PET P 16:45:41.75 0.93 32.05 19.57 Automatic
IU MA2 P 16:46:17.7 0.89 12.17 22.87 Automatic
IU YAK P 16:46:41.2 -0.94 347.19 25.59 Automatic
IU ULN P 16:46:55.37 -0.31 303.54 27.05 Automatic
IU BILL P 16:47:51.97 -0.91 16.59 33.56 Automatic
IU TIXI P 16:48:02.37 -0.73 353.08 34.74 Automatic
IU MAKZ P 16:49:20.59 -0.26 301.88 43.98 Automatic
II KDAK P 16:49:41.37 -0.06 42.09 46.58 Automatic
II KAPI P 16:49:42.82 -0.3 210.21 47.08 Automatic
IU COLA P 16:49:57.2 0.69 32.35 48.5 Automatic
II AAK P 16:50:09.37 0.18 298.14 50.15 Automatic
II BRVK P 16:50:09.22 -0.11 312.21 50.18 Automatic
II NIL P 16:50:40.62 0.16 288.01 54.36 Automatic
II WRAB P 16:50:59.42 -2.67 187.89 57.82 Automatic
IU MBWA P 16:51:35.94 4.08 202.99 62.13 Automatic
II OBN P 16:52:09.87 -0.25 323.25 67.49 Automatic
II KIV P 16:52:28.47 0.23 310.95 70.4 Automatic
IU GNI P 16:52:35.27 1.93 306.7 71.24 Automatic
II UOSS P 16:52:34.27 -0.79 287.73 71.56 Automatic
II FFC P 16:52:43.57 -0.46 32.69 73.01 Automatic
II PFO P 16:53:15.22 -0.35 56.19 78.54 Automatic
IU ANTO P 16:53:17.77 1.07 312.15 78.73 Automatic
IU RSSD P 16:53:18.67 -0.55 41.68 79.19 Automatic
II RAYN P 16:53:24.27 -1.02 292.33 80.36 Automatic
IU TUC P 16:53:39.52 -0.17 54.18 83.05 Automatic
IU ANMO P 16:53:44.92 0.26 49.79 84.02 Automatic
II BFO P 16:53:47.17 -0.52 330.83 84.59 Automatic
IU CCM P 16:54:13.97 -0.64 38.78 90.19 Automatic