This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.1 mb
Local datetime 2023/12/22 05:45
Universal datetime 2023/12/21 20:45
Latitude 35.35 ° ± 4 km
Longitude 140.97 ° ± 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  117 8.336599e+06
Yokohama  124 3.574443e+06
Kawasaki  116 1.306785e+06
Shizuoka  239 701561
Hachiōji  153 579399
Utsunomiya  166 449865
Nagano  291 360176
Iwaki  189 357309
Kōriyama  235 340560
Kawagoe  148 337931
Fukushima  269 294237
Maebashi  207 282711
Mito  121 246538
Matsumoto  288 210667
Kōfu  219 190000

Past seismicity

  This map shows only the 0 most significant earthquakes around this event.

Event details

Parameters

Evaluation status
RMS 1.18
Azimuthal gap 115.76 °
Number of stations used 26
Number of phases used 26

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 20:46:08.72 2.45 298.91 2.54 Automatic
II ERM P 20:47:04.87 -0.89 13.71 6.88 Automatic
IU YSS P 20:48:11.25 -0.32 6.05 11.69 Automatic
IU MA2 P 20:50:49.62 0.26 11.75 25.05 Automatic
IU YAK P 20:51:11.27 -1.2 348.58 27.61 Automatic
IU ULN P 20:51:15.97 -0.26 307.06 27.98 Automatic
IU BILL P 20:52:23.59 -0.38 15.97 35.73 Automatic
IU TIXI P 20:52:32.49 -0.83 353.67 36.83 Automatic
IU CHTO P 20:53:05.34 0.83 257.21 40.53 Automatic
IU MAKZ P 20:53:39.14 -0.68 303.66 44.81 Automatic
II KAPI P 20:53:41.2 1.74 210.64 45.02 Automatic
IU PMG P 20:53:39.27 -0.46 171.37 45.14 Automatic
II KURK P 20:53:52.54 -1.15 309.44 46.57 Automatic
II AAK P 20:54:26.37 -0.37 299.56 50.85 Automatic
II WRAB P 20:54:55.47 -3.43 187.53 55.64 Automatic
IU MBWA P 20:55:30.7 0.37 202.96 59.99 Automatic
II ALE P 20:55:44.2 0.6 3.37 61.58 Automatic
II KIV P 20:56:47.77 0.43 311.31 71.52 Automatic
II FFC P 20:57:08.39 0.2 32.16 75.04 Automatic
IU KIEV P 20:57:07.62 -1.18 322.51 75.15 Automatic
II PFO P 20:57:36.97 0.7 55.61 80.07 Automatic
II RAYN P 20:57:39.7 -0.99 292.39 80.81 Automatic
IU RSSD P 20:57:42.92 1.28 41.2 81.06 Automatic
IU TUC P 20:58:00.59 0.48 53.73 84.64 Automatic
IU ANMO P 20:58:06.87 1.36 49.38 85.71 Automatic
IU CCM P 20:58:37.34 1.46 38.51 92.11 Automatic